KOBELCO OPERATION & MAINTENANCE MANUAL SK40SR SK45SR APPLICABLE NO. SK40SR PH00101~ SK45SR PY06001~ BOOK CODE NO. S2PHOO01E ¢[ere merid PMG Do not operate or maintain this machine untill you read this Manual and understand the instructions. Improper operation or maintenance of this machine may cause accidents and could result in serious injury or death. Always keep this Manual in the operators cab or canopy. If it is missing or damaged, place an order to a KOBELCO distributor for a replacement. If you have any questions, please consult your KOBELCO distributor. @ SAFETY INFORMATION Most accidents, which occur during operation, are due to neglect of precautionary measures and safety rules Sufficient care should be taken to avoid these accidents. Erroneous operation, lubrication or maintenance services are very dangerous and may cause in- jury or death of personnel. Thus, precautionary measures, or notes, written in this Manual should be read and understood by personnel before starting each task. Operation, inspection, and maintenance should be carefully carried out, and safety must be given the first priority, Messages of safety are indicated with @4 marks. The safety information con- tained in this Manual is intended only to supplement safety codes, insurance requirements, local laws, rules and regulations. Messages of safety appear in this Manual and on the machine. All messages of safety are iden- tified by the words “DANGER”, “WARNING” and "CAUTION These words mean the following Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury, FOLGE |0'cetes 2 potently hazerdous situation which, if not avoided, could result in serious injury. A DANGER Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against possible dai to the machine and its components. PW It is very difficult for us to forecast every danger that may occur during operation, However safety can be ensured by operating this machine according to methods recommended by KOBELCO. While operating machine, be sure to perform work with great care, so as to not damage the ma chine, or let accidents occur. Please continue studying this Manual until proper operation is completely understoodFOREWORD This Manual describes procedures for operation, handling, lubrication, maintenance, checking, and adjustment. It will help the operator realize peak performance through effective, economical machine operation maintenance ‘© Before operating this machine, read this Manual thoroughly and, make sure that you under- stand its contents. Failure to follow the instructions given in this Manual may lead to a serious failure © Please continue studying this Manual until proper operation is completely understood. © This Manual describes the basic techniques. Skill is gained as the operator utilizes these tech niques and perfects them with an actual machine © Some illustrated pictures maybe different from your machine, as technical improvement is continuously on going. Manuals are continuously updated and issued to reflect these changes. ‘© This operation and maintenance Manual may not contain attachments and optional equip- ment that are available in your area. Please consult your KOBELCO distributor for those items you may require. Materials and specifications are subject to change without notice (@ REQUESTS FROM THE MANUFACTURER, WARRANTY The machine is guaranteed according to the manufacturer's Warranty Certificate. The manufacturer will repair, free of charge, such malfunctions and faults for which the manufacturer is deemed responsible by the Warranty Certificate. KOBELCO is not responsible for malfunctions and faults caused by negligence or failure to follow instructions given in the operation Manual. PERIODICAL After delivery of this machine, the KOBELCO distributor will make periodical INSPECTION service inspections. These inspections will be free of charge and at intervals for SERVICE a period we set For questions about service which the user may receive, contact your KOBELCO distributor. NOTICE TO Please note that the contents of this Manual may differ from the specifications THE USER of the machine we deliver. If any question arises as to the contents of this Manual, feel free to contact your KOBELCO distributor@ FOR ORDERING For ordering parts and service, inform the distributor of your machine's serial number and en- gine serial number stamped in the positions shown below on the illustration. For future refer- ence, record these serial numbers in the spaces below —T = T Machine No. SK40SR_ PH— | SK45SR_- PY — Engine No. 3TNEBB 4TNE88 @ POSITION OF MACHINE'S SERIAL NUMBER MNO.PH—-00105 9 2 OK sis. tse): a) EU ONLY @ HOUR METER So Bjxour oGEEEERH° Ko The numbers in the illustrations are for explanation only and differ from actual numbers. 0-3 @PN SAFETY A WARNING ‘The proper and safe lubrication and maintenance | | improper performance of lubrication or mainte- | in injury or death. Read and understand the The serviceman or mechanic may be unfamil- iar with many of the systems on this machine. This makes it important to use caution when performing service work, A knowledge of the system and or components is important before the removal or disassembly of any component. Because of the size of some of the machine components, the serviceman or mechanic should check the weights noted in this Manual Use proper lifting procedures when removing any components Following is a list of basic precautions that should always be observed 1. Read and understand all warning plates and decals on the machine before operat- ing, lubricating or repairing this product. 2. Always wear protective glasses and pro: sctive shoes when working around ma- ines, In particular, wear protective glasses when pounding on any part of the machine or its attachments with a ham- mer or sledge. Use welders gloves, hood/ goggles, apron and other protective cloth- Ing appropriate to the welding job being performed. Do not wear loose-fitting or torn clothing. Remove alll rings from fin- gers when working on machinery 3. Disconnect battery and discharge any ¢: pacitors before starting to work on ma- chine Hang “Do Not Operate” tag in the Operator's Compartment 4. If possible, make all repairs with the n chine parked on a level, hard surface Block machine so it does not roll while working on or under machine. 5. Do not work on any machine that is supported only by lift jacks or @ hoist Always use blocks or jack stands to sup- port the machine before performing any disassembly PWG Do not operate tis machine unless you have read and | understand the instructions in the OPERATOR'S | MANUAL. Improper machine operation is dan- | gerous and could result in injury or death. 6. Relieve all pressure in air, oil or water sys. tems before any lines, fittings or related items are disconnected or removed Always make sure all raised components are blocked correctly and be alert for pos sible pressure when disconnecting any de- vice from a system that utilizes pressure 7. Lower the bucket, blade, ripper or other attachments to the ground before per: forming any work on the machine, If this cannot be done, make sure the bucket blade, ripper or other attachment is blocked correctly to prevent it from drop- ping unexpectedly. 8. Use steps and grab handles when mount ing or dismounting a machine. Clean any mud or debris from steps, walkways or work platforms before using. Always face machine when using steps, ladders and walkways. When it is not possible to use the designed access system, provide ladders, scaffolds, or work platforms to perform safe repair operations. 9. To avoid back injury, use hoist when lift- ing components which weigh 23 kg (50 tbs) or more. Make sure all chains, hooks slings, etc., are in good condition and are in the correct capacity. Be sure hooks are positioned correctly. Lifting eyes are not to be side loaded during a lifting operation. 10, To avoid burns, be alert for hot parts on machines which have just been stopped and hot fluids in lines, tubes, and com- partments. 11. Be careful when removing cover plates, Gradually back off the last two bolts or nuts located at opposite ends of the cover or device and pry cover loose to relieve any spring or other pressure, before re moving the last two bolts or nuts com- pletely 12, Be careful when removing filler caps, breath- ers and plugs on the machine, Hold a rag over the cap or plug to prevent being sprayed ar splashed by liquids under pressure. The danger is even greater if the machine has just been stopped because fluids can be hot.13, 4 16. 16. 17, 18, 19, 20. Always use tools that are in good condi- tion and be sure you understand how to use them before performing any service work. Reinstall all fasteners with same part num- ber. Do not use a lesser quality fastener if replacements are necessary. Repairs which require welding should be performed only with the benefit of the ap- propriate reference information and by personnel adequately trained and knowl- edgeable in welding procedures. Make reference to “Techniques of Structural Repair Course”. Determine type of metal being welded and select correct welding procedure and electrodes, rods or wire to provide @ weld metal strength equivalent at least to that of parent metal Do not damage wiring during removal op- erations. Reinstall the wiring so it is not damaged nor will it be damaged in opera- tion by contacting sharp corners, or by rubbing against some object or hot sur- face. Do not connect wiring to a line con- taining fluid Be sure ali protective devices including guards and shields are properly installed and functioning correctly before starting a re- pair. If a guard or shield must be removed to perform the repair work, use extra cau- tion Always use lift arm supports to keep bucket arms raised and bucket tilted down when maintenance or repair work is performed which requires the bucket in the raised po- sition Loose or damaged fuel, lubricant and hy- draulic lines, tubes and hoses can cause fires. Do not bend or strike high pressure lines or install ones which have been bent or damaged. Inspect lines, tubes and hoses carefully. Do not check for leaks with your hands. Pin hole (very small) leaks can result in a high velocity oil stream that will be invisible close to the hose. This oil can penetrate the skin and cause personal injury. Use cardboard or paper to locate pin hole leaks. Tighten connections to the correct torque. Make sure that all heat shields, clamps and guards are installed correctly to avoid excessive heat, vibration or rubbing against other parts during operation Shields that protect against oil spray onto hot exhaust components in event of a line, tube or seal failure must be installed cor- rectly 21. Do not operate a machine if any rotating part is damaged or contacts any other part during operation. Any high speed rotating component that has been dam- aged or altered should be checked for bal- ance before reusing 22. On track-type machines, be careful when servicing or separating tracks. Chips can fly when removing or installing a track pin. Wear safety glasses. Track can un- roll very quickly when separated. Keep away from front and rear of machine. The machine can move unexpectedly when both tracks are disengaged from the sprockets. Block the machine to prevent it from moving. 23. Caution should be used to avoid breathing dust that may be generated when han- dling components containing asbestos fi- bers. If this dust is inhaled, it can be hazardous to your health. Components in KOBELCO produets that may contain s- bestos fibers are brake pads, brake band and lining assemblies, clutch plates and some gaskets. The asbestos used in these components is usually bound in a resin or sealed in some way. Normal handling is not hazardous as long as airborne dust which contains asbestos is not generated. If dust which may contain asbestos is present, there are several common sense guidelines that should be followed. Never use compressed air for cleaning ‘Avoid brushing or grinding of asbestos containing materials, For clean up, use wet methods or a vac- uum equipped with a high efficiency particulate air (HEPA) filter d. Use exhaust ventilation on permanent machining jobs. €. Wear an approved respirator if there is no other way to control the dust #. Comply with applicable rules and regu- lations for the work place. 8. Follow environmental rules and regula- tions for disposal of asbestos. bh. Avoid areas where asbestos particles may be in the air.CONTENTS TITLE [CHAPTER IMPORTANT INFORMATION FOREWORD FOR ORDERING SAFETY SAFETY 0-4 OPERATING CHAPTER 1. SAFETY EQUIPMENT SAFETY PRECAUTIONS BEFORE OPERATION PRECAUTIONS DURING OPERATION PRECAUTIONS DURING INSPECTIONS. Oren A TION AND MAINTENANCE --~ 1-9 PRECAUTIONS WHEN HANDLING BATTERIES 1-12 WARNING LABEL MAINTENANCE HANDLING OF WARNING LABELS sesreeenes 1-13 WARNING LABEL POSITION (CANOPY AND CAB SPEC.) seeeeereteenennnee 1293, TRANSPORTATION CHAPTER 2. OPERATING EQUIPMENT LOCATION OF COMPONENTS MONITOR PANEL (GAUGE CLUSTER) ARRANGEMENT AND OPERATION OF SWITCHES ~- 2-6 SPECIFICATIONS Dea eaeae ARRANGEMENT AND OPERATION OF LEVERS ------ 2-8 FUSE BOX 2-11 OPTIONAL FUSIBLE LINK 2-12 DEVICE STORAGE POSITION OF TOOLS 2-12 STORAGE POSITION OF GREASE GUN 2-12 CAB (OPTION) aa 2-13 OPENING/CLOSING THE COVER 2-18 INDEX SEAT BELT (USA ONLY) sssssssssssssseeeeeeseseestssssrenees 2°16 CHAPTER 3. OPERATION OPERATION INSPECTION BEFORE STARTING THE ENGINE vr 3-1 CHECK BEFORE OPERATION seseenetan wo 9-2 HANDLING OF THE NEW MACHINE seeenene ence 3-4 ADJUSTMENT BEFORE STARTING THE ENGINE oe Bad STARTING AND STOPPING THE ENGINE sssssrsesesees 3-4 WARM-UP RUNNING + 3-9 SPECIAL PROCEDURES «-~ . 3-10OPERATION PROCEDURE 3-3 : OPERATING METHODS FOR IMPROVING EFFICIENCY PROHIBITED OPERATIONS PARKING THE MACHINE ~ PRECAUTIONS AFTER OPERATION CAUTION ON USING RUBBER SHOES INSPECTING THE RUBBER SHOE REMOVING RUBBER SHOES INSTALLING RUBBER SHOES - HANDLING UNDER SPECIAL CONDITIONS PRECAUTIONS WHEN STORING THE MACHINE FOR A LONG PERIOD CHAPTER 4. MAINTENANCE MAINTENANCE PERIODICAL INSPECTION AND MAINTENANCE PRECAUTIONS ON MAINTENANCE RECOMMENDED OIL VISCOSITY AND ITS CAPACITY (SK40SR) RECOMMENDED OIL VISCOSITY AND ITS CAPACITY (SK45SR) EXPENDABLE PARTS (SK40SR AND SK45SR) FOLLOW THE PRECAUTIONS BELOW WHEN MOUNTING HOSES, PIPING AND JOINTS RELEASING THE INTERNAL PRESSURE OF HYDRAULIC OIL SYSTEM PRESSURIZING THE HYDRAULIC OIL TANK RELEASING AIR IN THE FUEL SYSTEM LUBRICATION AND MAINTENANCE INTERVALS WHEN REQUIRED 8-HOUR (DAILY) INSPECTION AND. MAINTENANCE 50-HOUR (WEEKLY) INSPECTION AND MAINTENANCE 260-HOUR (3-MONTH) INSPECTION AND MAINTENANCE 500-HOUR (6-MONTH) INSPECTION AND MAINTENANCE 4,000-HOUR (12~MONTH) INSPECTION AND MAINTENANCE 2,000-HOUR INSPECTION AND MAINTENANCE + 3-19 + 3-22 3-25 3-25 ++ 3-26 + 3-28 3-30 3-30 + 3-31 ++ 3-32 4-6 AT 4-8 4-9 4-10 4-13 4-21 4-24 4-28CHAPTER 5. TRANSPORTATION TRANSPORTATION WHEN PREPARING TRANSPOTATION PLANS =------ CHAPTER 6. SPECIFICATIONS SPECIFICATIONS MAIN SPECIFICATIONS ~~ EXTERNAL DIMENSIONS (SK40SR*CANOPY SPEC.) EXTERNAL DIMENSIONS (SK40SR+CAB SPEC.) EXTERNAL DIMENSIONS (SK45SR-CANOPY SPEC.) EXTERNAL DIMENSIONS (SK45SR*CAB SPEC.) WORKING RANGE (SK40SR*CANOPY SPEC.) WORKING RANGE (SK40SR*CANOPY SPEC.) WORKING RANGE (SK40SR+CAB SPEC.) WORKING RANGE (SK40SR-CAB SPEC.) WORKING RANGE (SK45SR+CANOPY SPEC.) WORKING RANGE (SK45SR + CANOPY SPEC.) WORKING RANGE (SK45SR + CAB SPEC.) WORKING RANGE (SK45SR + CAB SPEC.) SHOE TYPES (SK40SR + SK45SR) BUCKET TYPES (SK40SR) BUCKET TYPES (SK45SR) OVERALL SPECIFICATIONS OF BOOM OVERALL SPECIFICATIONS OF ARM AND BUCKET OVERALL SPECIFICATIONS OF ARM. OVERALL SPECIFICATIONS OF BUCKET CHAPTER 7. OPTIONAL DEVICE HYDRAULIC BREAKER CHAPTER 8. INDEXCHAPTER 1. SAFETY (SAFETY | Many failures that occur during machine operation or servicing result from neglecting funda- mental precautions. The following precautions are given to prevent such failures, but they are only a part of what you must follow. Read all safety precautions thoroughly before operating the machine. PRECAUTIONS BEFORE OPERATION @ OBSERVE SAFETY RULES Follow all safety rules, precautions, and op- erating procedures If there are other personnel and flag-men working in the area, have them observe the specified signs. @ WEAR PROTECTIVE CLOTHING Wear well-fitting safety shoes, hard hat, and working clothes, and put on protective glasses, masks, and gloves, when necessary. © READ THE OPERATORS MANUAL THOROUGHLY Before operating the machine, read this op- erators manual thoroughly in order to use the machine effectively and safely. Furthermore, keep this operators manual at the operator seat at all times so all opera- tors handling this product can read it over and again. Keep this manual in the specified storage area, behind the seat. In the case of ROPS canopy, open the cover on left contro! box using starter key and keep this manual in the storage area Storage area (For cab) Storage area (For Rops canopy) @ HOW TO HANDLE LIFE HAMMER (CAB SPEC. ONLY) A life hammer is provided on the left side of cab. In case of emergency, take the life hammer, break the cab glass, and escape from the cab In addition, the life hammer is equipped with a cutter on the lever side to cut the seat belt, etc.SAFETY OPERATION @ DO NOT MODIFY WITHOUT PERMISSION KOBELCO is not liable for any damage or injury arising from modification without prior permission. Consult your KOBELCO distributor before modifying the machine @ PREPARE FOR EMERGENCIES Have a fire extinguisher and first aid kit ready for emergencies such as fires or acci- dents Learn how to use the fire extinguisher. Designate a place to keep the first aid kit. Keep emergency numbers handy, and de- cide which agencies should be contacted and the means of contact. @ ENSURE SAFETY AT THE WORKSITE Before operating the machine, survey and record the geographical and geological fea- tures of the worksite completely to prevent the machine from falling or the soil from caving in. @ PERFORM A PREOPERATION INSPECTION Perform inspections before starting the ma- chine. If any problems are discovered, re- pair them immediately. Always keep the windshield, working lamps, and mirrors cleanSAFETY OPERATION @ LOCK BEFORE LEAVING THE MACHINE Before leaving the operator's seat, set the safety lever to the lock position. If the lever is not set to the lock position and is touched accidentally, the machine may move sud- denly and a serious injury may result. Before leaving the machine, lower the bucket to the ground, lock the safety lever, stop the engine, and lock and keep all keys. © NOTE SIGNS AND SIGNALS Install signs on soft shoulders and ground areas. Have a flag-man direct the operation if necessary, The operator should note marks and follow signs from the flag-man. All personnel should know the meaning of the signs, marks, and signals. Only one flag-man should give the signs and signals. © KEEP FIRE AWAY FROM FUEL AND OIL Oil, antifreeze, and especially fuel are highly flammable, Never use fire near the machine. Stop the engine before replenishing with fuel. Securely tighten all fuel and oil caps Keep fuel and oil in the designated storage areas. @ USE CAUTION NEAR NOISE If noise is high during operation, hearing loss may result. Ear covers or ear plugs should be used if the operator will be ex- posed to high noise levels for a long period of time ReleaseSAFETY OPERATION @ USE THE HANDRAILS AND STEP When getting on and off the machine, al- ways maintain three point-contact by using the handrails and track. Inspect and clean handrails, track, and mounting parts, Remove slippery materials, such as lubricants, and mud. Always place the superstructure entrance parallel to the tracks before stopping the engine for dis- mounting. @ AVOID HANDLING AT HIGH TEMPERATURES. Immediately after the machine is operated, the temperature and pressure of the engine coolant, engine oil, and hydraulic oil are very high. Burns may result if caps are re- moved, or oil, water, or filters are changed under these conditions. Wait until the temperature goes down, be- fore following the proper procedures. © USE THE PROPER OPTIONAL ATTACHMENT Before installing or using an optional at- tachment, thoroughly read the options man- ual. Do not use attachments which are not speci- fied by KOBELCO. This may cause accidents or damage, and deteriorate the machine's functions and life span. KOBELCO is not liable for injuries, accidents, or machine malfunctions arising from use of improper attachments. @ PREVENT FIRES Remove all combustible materials, such as wood chips, dead leaves, and wastepaper, because they may be the cause of fires. Check the fuel, oil, and hydraulic oil systems for leakage. Repair and remove any leaked oil as necessary.SAFETY OPERATION (PRECAUTIONS DURING OPERATION @ START THE ENGINE PROPERLY Sit in the operator's seat when starting the engine. Sound the horn before starting the engine as a warning to stay away from the machine. Do not short-cirouit the starter circuit or battery to start the machine, This may cause a serious accident or damage the elec- trical system @ KEEP OTHER PERSONNEL AWAY FROM THE MACHINE The operator should never allow other per- sonnel to get on the machine. Serious injury can result, © GIVE A SIGNAL BEFORE STARTING THE ENGINE Before starting the engine, confirm that no other person is in the area of the machine; then sound the horn as a warning to stay away from the machine. If a warning tag is attached on the control lever, do not start the engine. @ CHECK THE DIRECTION OF THE TRACK FRAME BEFORE OPERATING THE TRAVEL LEVERS Before operating the travel levers, confirm which direction the tracks and travel motors are facing Tuan (dex Horn switch Condition where the driving direction is reversedSAFETY OPERATION @ FOLLOW THE PRECAUTIONS BELOW WHEN SLEWING OR TRAVELING THE MACHINE Keep other personnel away from the ma- chine slewing area. Before operating the machine, confirm that no personnel or ob- structions are around the machine, and sound the horn or give a signal as a warning to stay away from the machine Have a flag-man direct operations in areas which are dangerous or have poor visibility. @ CARE TO BE EXERCISED WHEN WORKING ON A SLOPE Machine operation on a slope involves dan- ger. Step down speed, using care so the ma- chine does not turn over and slide sideways. @ FOLLOW THE PRECAUTIONS BELOW WHEN OPERATING THE MACHINE ON FROZEN OR SNOW-COVERED GROUND: Reduce the speed, and do not suddenly start, stop, or turn the machine while on frozen or snow-covered ground, The machine may sideslip on even the slightest slope if the ground is frozen or covered with snow, Snow on shoulders or snowdrifts can be deeper than expected, and shoulders and in- stalled equipment may become buried and invisible under snow. The frozen ground will become softer as the temperature rises. Take due care when driving the machine @ USE THE PRECAUTIONS BELOW WHEN, TRAVELING Position the attachment as shown in the fig- ure on the right, The distance between the attachment and ground should be about 30: 40 cm. Move the machine at low speeds and do not change directions suddenly on rough ground Do not drive over obstacles. If an obstacle must be driven over, keep the attachment near the ground and move the machine at a low speed.@ USE CAUTION IN DANGEROUS OPERATIONS. The machine may become unbalanced at a shoulder or an edge of a precipice. Position the crawler at right angles to the shoulder with the travel motor at the rear so that the machine can be retracted quickly in an emergency. Since the shoulder may easily crumble (espe- cially on filled-in ground or after a rain- storm), make sure that the machine is on secure, stable ground. Do not dig too closely to the machine. @ PRECAUTIONS USED IN LIFTING Since this machine is an excavator, please use extreme caution when handling heavy loads PM Use only approved slings and shackles (clevises). Never lift a load using the bucket teeth, J @ USE THE PRECAUTIONS BELOW WHEN. ON A SLOPE The machine may become unbalanced when being operated on a slope, Take due care when operating the machine Work up and down slopes, rather than side ways, whenever possible Do not turn the machine to the downward side of the slope when the bucket is filled with material, If turning movements are necessary, first build a level operating area for the machine, @ FOLLOW THE PRECAUTIONS BELOW WHEN UNDER ELECTRICAL POWER LINES If the machine or attachment should come into contact with a electrical power line, se- rious injury or death resulting from electric shock may occur, Keep sufficient distance from the line while operating the machine The minimum distance standards are given below. Tine voltage _V_|__Minimum distance m 50,000 | __ 50,000 = 200,000 455 or more 200,000 - ~~ 350,000 | ~ 6.0 or more 350,000 ~~ 500,000 7.5 oF more, 500,000 = 750,000 10.5 or more 750,000 = 1,000,000 13.5 or more SAFETY OPERATIONSAFETY OPERATION @ USE CAUTION WHEN DIGGING NEAR BURIED UTILITY LINES If there is possibility that a water or gas pipe may be buried in the site to be dug, first contact the jurisdictional managing com- pany to confirm the exact location of the buried lines. Then, start digging carefully @ USE CAUTION WHEN PARKING Park the machine on level ground. If the ma- chine unavoidably must be parked on a slope, apply the block to the crawler and lower the bucket to the ground, Block the tracks down slope. When parking on a road, park the machine so as not to obstruct traffic. Warn passer- by and other vehicles by placing warning signs, such as flags, pylons, or lamps. @ CAREFULLY OPERATE THE ATTACHMENT When operating the machine in areas where the height is limited, such as in tunnels, under bridges, and under electric wires, be careful not to strike the attachment against anything @ STABILIZE REMOVED ATTACHMENTS After removing an attachment, place it so that it will not fall over.SAFETY OPERATION (PRECAUTIONS DURIN G_INSPECTIONS AND MAINTENANCE © INDICATE INSPECTIONS/MAINTENANCE WITH A WARNING TAG If someone should start the engine or move the lever while an inspection or maintenance is being carried out on the machine, a seri- ous injury may result. Attach a warning tag which states “Do not operate” to the control lever. Display warning signs around the ma- chine, if necessary. @ USE THE PROPER TOOLS Never use damaged or deformed tools. Do not use tools which were made for other pur- ee poses. Use only the proper tools. | @ KEEP THE MACHINE CLEAN Leaked oil and grease may cause an acci- dent. Always keep the machine clean. If water leaks into the electrical system, the machine may break down or operate im- | properly. Do not wash the sensors, connec- tors, or operator's seat with water or steam @ STOP THE ENGINE DURING INSPECTIONS AND SERVICING If an inspection or servicing is carried out a while the engine is running, hands or cloth- a> ing may become caught in the fan, pulley, or fan belt. Always stop the engine before in- specting or servicing the engine.SAFETY OPERATION @ FOLLOW THE PRECAUTIONS BELOW WHEN FILLING WITH FUEL OR OIL Stop the engine and fill with fuel or oil in a well ventilated place. Spilt oil can make the floor slippery and cause an accident, Clean up spilt oil immediately. After adding oil, tighten the fuel and oil caps firmly. Never use fuel to clean the machine. @ USE SUPPORTS WHEN JACKING UP THE MACHINE If supports are not used when jacking up the machine, an accident may result. When you lift up the machine to inspect the lower frame assembly, the angle between the boom and arm should be 90-110". Lower the bottom face of the bucket to the ground and lift up the machine; then support the machine with a safety support or block. @ BE CAREFUL WITH HiGH-PRESSURE OIL Normally, pressure exists in every hydraulic circuit. Never replenish or dispose of oil, or spect or service the machine, before releas- ing the internal pressure, Even leakage of high-pressure oi! from a small hole can be dangerous if it comes into contact with your skin or eyes, Always wear protective glasses and gloves, and perform inspections with a plate or card board held against areas leak ing oil @ USE CAUTION WHEN SERVICING IF THE MACHINE TEMPERATURE OR PRESSURE 1S HIGH Immediately after the machine is stopped, the temperature and pressure of the engine jolant and oil can be extremely high. if you remove the cap or change the oil, water, or filter under these conditions, you can get burned. Follow the inspection or servicing procedures after the temperature has gone down© BE CAREFUL WITH HIGH-PRESSURE GREASE WHEN ADJUSTING THE TRACK TENSION Because high pressure exists in the grease cylinder, grease will blow out if the grease nipple is loosened suddenly. Do not loosen the grease nipple suddenly or turn it more than one revolution. Keep your face, hands, and legs away from the direction in which the grease nipple is at- tached, @ USE THE SPECIFIED LIGHTING When inspecting the fuel, oil, coolant, or bat- tery. use explosion-proof lighting equip- ment. Other lighting equipment can ignite a fire and cause an explosion. @ USE CAUTION WHEN WORKING WITH THE ELECTRICAL SYSTEM Before repairing the electrical system or performing electric welding, disconnect the negative © terminal of the battery. If the negative © terminal is not disconnected, the electrical system may become damaged @ FOLLOW PROPER PROCEDURES WHEN DISPOSING OF LIQUID WASTE Follow the specified regulations when dis: posing of oil, fuel, coolant, hydraulic oil, sol vents, filters, batteries, or other toxic substances Use a container when extracting liquid waste from the machine, Never dispose of liquid waste on the ground, or in rivers, lakes, or the sea; it can destroy the environment. SAFETY OPERATION [We ranaving, remove “thoogarn trina frst 1-1SAFETY OPERATION (PRECAUTIONS W @ PREVENT BURNS FROM BATTERY FLUID Wear a long-sleeve shirt, protective glasses, and gloves when working with batteries: If battery fluid (which has diluted sulfuric acid) comes into contact with your clothing, skin or eyes, you can get burned or lose your eyesight. Immediately rinse with pure water and consult a physician © PREVENT BATTERIES FROM EXPLODING Explosive hydrogen gas is generated in bat- teries. Keep fire and open flames away from batteries, Tighten battery caps securely, and connect the terminals firmly Open the cover so that batteries are well ventilated when being charged. @ FOLLOW THE PROCEDURES BELOW WHEN STARTING THE ENGINE WITH A BOOSTER CABLE Wear protective glasses when starting the engine with a booster cable. When using another vehicle to start the ma- chine, make sure that the normal machine does not make contact with the malfunction- ing one. When removing, remove the negative © ter- minal first; and when connecting, connect the positive ® terminal first. Make sure that no tools make contact be- tween the positive © terminal and machine body. If this should happen, sparks could be generated, producing a dangerous situation, Never mistakenly connect the booster ca- ble's positive © terminal with the negative ©. The final connection is to the upper frame. See page 3-6 for the starting proce- dure when using a booster cable EN HANDLING BATTERI dt When connecting. connect the When removing, positive terminal remove the first negative terminal SS first. ee ~ 12SAFETY OPERATION ————— = WARNING LABEL (esceeheeerserersnes eessocreney| Labels are affixed in locations which require special attention in order to prevent possible acci- dents. Thoroughly understand the reason for their placement and the contents. |ANDLING OF WARNING LABELS + Confirm whether labels can be easily read + If labels are damaged, missing or illegible, If words or illustrations are illegible, replace them with new ones. Contact your clean off or replace the labels, KOBELCO distributor for new labels. + Use a cloth, water, and detergent to clean the labels. Never use organic solvents or gasoline. (WARNING LABEL POSITION (CANOPY AND CAB SPEC.) } Do not enter the machine slewing area @ Use caution when opening the hood if >} Pear oe Rotating engine fan, hot engine parts and drive belt can cause ( —_' severe injury. f—S Do not open engine cover or service engine with engine running. naam! YNaoTotot2Pt Attached to the counterweight Attached to the hood @ Checking the hydraulic oil level eae Ong Lack of hydraulic oil will cause damage to main hydraulic pump. Before starting operation: * Place machine on level ground. + Fully retract arm and bucket cylinders and lower boom to ground. * Check hydraulic oil level gauge for Proper level. YnzoToror4Pt Attached to the hydraulic tank cover @ Use caution when opening the hydraulic oil tank cap rs Pressurized hot cause burns. Flange slowly to release Hydraulic Tank pressure. Py20Tot74Pt Attached to the hydraulic tank cover 1-13 ©SAFETY OPERATION 8) Do not contact the bucket with the cab Py Bucket can contact | and damage cab | when machine equipped with some attachments. °© | Check clearance between bucket and cab before operation, Exercise care when operating a bucket | near cab. | [EM zorororaPs | lf ‘Attached to the right side of the cover | (CANOPY ONLY) 2 Hydraulic oil tank pressurization posture are Removal of hydraulic tank cap’ “The hydraulic purp wl be damaged if the hydraulic tank is ‘not pressurized. Seed apm ai eee | Fruven'vert cape (FIG: $1) Se othe rele fonkocceurton gtr (E10 #2) Spot Intro stroke of ech onder Sten vent cep. tts now O.K. to Pyare akon | Air vet us, iF FIG#2 | l Pvarroios1es | Attached to the hydraulic tank cover 8) General precautions during operation Pe 1. PLEASE READ THOROUGHLY THE OPERATOR'S MANUAL BEFORE OPERATING OR PERFORMING MAINTENANCE ON THIS. MACHINE ENSURE THE SAFETY LEVER IS ACTIVATED AND BUCKET IS ON THE GROUND BEFORE STARTING OR LEAVING THE MACHINE. ‘STARTING INSPECTION. AND. PERIODIC INSPECTION SHOULD BE FOLLOWED ACCORDING TO THE OPERATOR'S MANUAL BEFORE STARTING OPERATION, SOUND HORN AND BE SURE BYSTANDERS ARE CLEAR OF MACHINE. PARK ON A LEVEL SURFACE AND LOWER THE BUCKET TO THE GROUND, "IF NECESSARY TO PARK ON A SLOPE. CHOCK THE CRAWLERS. DO NOT EXERT ABNORMAL SHOCK LOADS OR TORSIONAL FORCES: ON THE ATTACHMENTS SUCH AS. SNLEVELING OF BACKFILLING WHILE SWINGING. = DROPPING THE BUCKET TO BREAK CONCRETE Of STONE = OZING WITH THE BUCKET INSTEAD OF THE DOZER BLADE PY 20T01025P1 Attached to the control stand (CANOPY ONLY) 6 Use caution with high-tension lines YW Contact with electrical power | lines will result in severe injury | or death, | Keep machine and attachment | a safe distance from electrical | power lines as per following instruction, VOLTAGE (Volts) SAFETY DISTANCE 50K or LESS —_3.0M (10FT) | 50K 020K 45M (15FT) 200K to 350K 60M (20FT) 350K 10 500K —_7.5M (25FT) 500K t0 750K 105M (35FT) 750K wo OVER 135M (45FT) I ‘ynnzoT0100861 Attached to the right side of the cover (CANOPY ONLY) © Use caution when adjusting crawler tension Ww | | =e | Gye) [Extrome high prossure in arack | adjustment cylinder ‘can cause personal injury when adjusting crawler tension. Loosen grease nipple with care | to relieve pressure gradually. | _} Attached to the control stand (CANOPY ONLY)SAFETY OPERATION 40 Use caution before T) Use caution before exiting operating control lever the operators seat PME PMs Operating this machine before Machine may move suddenly and checking the function of each | cause serious personal injury if control lever can cause the a control lever is accidentally machine to move unexpectedly, touched. Be sure the safety lever which can result in serious is disengaged and in the locked personal injury. Make sure | | position before exiting the cab. you check and know the function | | Py20T01073P1 of each control lever before | A er enG acaricides operating, by briefly activating control levers. Attached to the seat stand Pyz0To1064Pt Attached to the seat stand a y | 12 Prevent battery explosions nw the battery — YMG Ye | | | PREVENT BATTERY EXPLOSION | OID SCID ern Seto isan patie cues tf boos mes | feos ee that cn explode and tse pearl " uae insry or car + Keep sparks, open flames and y [contacts kin ose | certs sy fom batteries ove + Wear eye protec- + Keep metallic articles away from a ¥ tion and protective fatteries othing when + Keep all ventilation caps tightly se- clothing | are handling or servic- | + Never check charge by placing metal | articles across battery terminals | + Leave battery box open to improve | ing batteries. If electroiyte con- | tacts skin or eyes, flush affected areas immediately with clean water and | seek medical atten- | tion immediately. 71 _ yuzororor7et | Attached to the hydraulic tank cover ventilation when charging. | yNaoTotao1PY Attached to the hydraulic tank cover {# Use caution when change the multi contro! lever (OPTION) Wee STOP THE ENGINE WITHOUT FAIL AT TIME OF CHANGEOVER YN20TOI2N4P ‘Attached to the multi control valve coverSAFETY OPERATION 4 Use caution when handling the booster cable 1 Use caution when handling the battery CGN Improper booster cable connec- | tions can cause an explosion | | resulting in personal injury. | Connect booster cables using DANGER € _ OK IT CAPS TIGHT AND LEVEL POISON CAUSES SEVERE BURNS (OF REACH OF CHILDREN following procedure. | . Connect booster cable to. | ad t ee OaTeaiel Attached to the battery of discharged battery. Connect other end of booster cable to positive battery terminal of normal battery. | Connect other booster cable to negative © battery | terminal of discharged bat- {1 Prohibition regarding lifting of whole machine A DANGER tery. Connect other end of booster cable to upper frame of troubled machine. Do not use counterweight 3. Start engine and remove i eae booster cables in reverse eee a machine. _ oer Lifting eyes can fail under this load resulting in per- PEER san wore sonal injury. (fis. fT | Samant 00 proper way of lifting machine. YN20TONO15P1 Ynu2oTo1221P1 Attached to the battery cover Attached to the counterweight CounterweightSAFETY OPERATION ® Use caution when opening ® Stop the engine before the engine cover inspecting and servicing x ae c 5 Rotating parts can cause personal injury. Keep away from fan and belt when engine is run- Caution of open/close covers. ~ Always stop the engine ‘when opening the covers. + When opening the covers, | engine guard th ning. oon radiator cover @). ‘Stop engine before sorvic- + When closing the cover, | Li YN20T010091 secure the 2 latches of | — radiator cover @ then | Attached to the bracket clase the engine guard (D. Py20T01061P1 Attached to the bracket @ Caution regarding high temperature ‘@® Use caution when opening the radiator cap Ps | Steam of hot coolant can cause injury or blindness. Never loosen or open radiator slits Engine may be hot which could cause burns. Do not touch ‘engine until it | cap when coolant is hot and | | under pressure, | Before opening radiator cap: * Cool down engine completely. + Cover radiator with cloth rag + Loosen cap slowly to relieve cools down, pressure, YN20TO1220P1 YrnaoTo1o10P1 Attached to the bracket Attached to the duct 1-17SAFETY OPERATION 2% Do not contact the bucket with the cab. % Use caution with high-tension lines | Bucket can contact | and damage cab | when machine equipped with some attachments. WEE) Check clearance |_| =. | between bucket and | 23) | cab bore operation Exercise care when operating a bucket near cab. { VRaotorosser | Attached to the right of the cab interior | 2 General precautions during operation Pa 1 PLEASE READ THOROUGHLY THE OPERATORS MANUAL eroRE | OPERATING OR PERFORMING MAINTENANCE ON THIS. MACHINE ENSURE THE SAFETY LEVER IS ACTIVATED AND BUCKET IS ON THE GROUND BEFORE STARTING OR LEAVING THE MACHINE “STARTING INSPECTION AND PERIODIC INSPECTION SHOULD BE FOLLOWED ACCORDING TO THE OPERATOR'S MANUAL, BEFORE STARTING OPERATION, SOUND HORN AND BE SURE BYSTANDERS ARE CLEAR OF MACHINE. PARK ON A LEVEL SURFACE AND LOWER THE BUCKET TO THE GROUND, F NECESSARY TO PARK ON A SLOPE. CHOCK THE CRAWLERS. DO NOT EXERT ABNORMAL SHOCK LOADS OR TORSIONAL FORCES, ON THE ATTACHMENTS SUCH AS. LEVELING OR BACKFILLING WHILE SWINGING = OROPPING THE BUCKET TO BREAK CONCRETE OR STONE = DOZING WITH THE BUCKET INSTEAD OF THE DOZER BLADE. Py20Toi025) Attached to the right of the cab interior 1-184 Ww | Contact with electrical power | | ines will result in severe injury or death. | Keep machine and attachment a safe distance from electrical power lines as per following | instruction |vourace vor) sarcry | DISTANCE SOK of LESS 20M (10FT) 50K to200K 45M (15FT) | 200K t0350K 60M (20FT) 350K to500K 75M (25FT) 500K to 750K 105M (35) | 13.5M (45FT) Attached to the left side of the cab interior 2 Use caution when adjusting crawler tension Extreme high pressure in track wer can cause personal injury when adjusting crawler tension. to relieve pressure gradually. Loosen grease nipple with care | aacrtsio | Attached to the left side of the cab interior2 Use caution when operating hydraulic breaker (OPTION) PN (IDLER SIDE OR SPROCKET SIDE). Attached to the right window 1-19 @ SAFETY OPERATION @ Front window operating precautions Pr Falling front window can cause injury. | | Always lock securely in place with | | tock pins on both sides | | Lezororoi9p1 Attached to the front window @ Use caution when operating | Attachment operation by foot pedal. | | Always check the foot pedal | | Sretaten tn | men | | Serer | | PY z0TOI062~1 prone | L— Attached to the right side of the cab interior ® Front window operating precautions PW Pull out the connector when lifting the front window. | | Lock securely. when opening | and shutting the front window. 242276108 Attached to the front window ® Use caution when operating dozer blade Dozer blade can be operated | both with or without lever- | lock in locked position. I PY20T0I077P1 Attached to the left side of the cab interiorCHAPTER 2. OPERATING EQUIPMENT LOCATION OF COMPONENTS } @ FUEL TANK ( TRAVELING MOTOR ® LEFT OPERATING LEVER ) CONTROL VALVE ( LOWER ROLLER ® BOOM CYLINDER 3) HYDRAULIC TANK 0 UPPER ROLLER @ BUCKET INSTRUMENT PANEL TRACK ADJUSTER, @ ARM ) RADIATOR (IDLER @ BUCKET CYLINDER SLEWING MOTOR (® SWING CYLINDER @ WORKING LIGHT BATTERY ® DOZER BLADE ® ARM CYLINDER SWIVEL JOINT @ MULTI CONTROL VALVE (OPTION) —@ BOOM SLEWING RING @ SOLENOID VALVE ® TRAVEL LEVER ENGINE @ DOZER BLADE CYLINDER ® OPERATOR SEAT HYDRAULIC PUMP. @® PILOT VALVE © RIGHT OPERATING LEVER RUBBER SHOE @ SAFETY LEVER ® CANOPYOPERATING EQUIPMENT 8 i 2 1) HORN SWITCH 9 OPERATOR SEAT 1 LEFT OPERATING LEVER 2 RIGHT OPERATING LEVER 10 STARTER SWITCH ® PEDAL LOCK (OPTION) 3) SAFETY LEVER 1+ RIGHT OPERATING LEVER STAND 21 OPTION PEDAL (OPTION) (CANOPY SPEC.) 4) BLADE OPERATING LEVER, 5) WORKING LIGHT SWITCH @ DECELERATION SWITCH (OPTION) D MONITOR PANEL i2 SEAT ADJUST 16 FUSE BOX (GAUGE CLUSTER) 3) A*B MODE SHIFTER (OPTION) 8) THROTTLE LEVER 16 SAFETY LEVER (LEFT) © Front, rear, right and left direction In this manual, the front, rear, right and left directions are based on the conditions where the travel motor is at the rear and the opera- tor is facing the direction in which the ma- chine advances (forward). 2 13 LEFT OPERATING LEVER STAND M@ HEATER SWITCH (CAB SPEC.) 18 WIPER SWITCH (CAB SPEC.) 8 BOOM SWING OPERATING PEDAL s ” LEVER LEFT TRAVEL LEVER TRAVEL SPEED SELECT SWITCH RIGHT TRAVEL LEVER PEDAL LOCK (BOOM SWING) SOCKET OF 12V POWER SOURCE (EU ONLY)OPERATING EQUIPMENT (MONITOR PANEL (GAUGE CLUSTER) The monitor displays information sent from sensors positioned at various places on the excavator, making it possible to monitor the excavator’s operating working conditions. @ METERS (A Group) PE ‘When the starter switch is set to“ ON", the battery charge and engine oil pressure lamps on the monitor light and fuel meter temperature meter starts operating, Always pay attention to the meters and the lamps to prevent problems before they happen. (8) (cy (B) (A) Meters (B) Warning lamps (C) Indicators (D) Select switchs (A) poco emt tere Sure mele NOTE: When the level lowers to approx. 8 @ or less, the warning lamp lights up. This indicates the tempera- puresetetekenaie aca ant On lighting up for 30 seconds or more con- rately aud chetetesweiionthe tinuously, the buzzer sounds. Add fuel. starter switch is turned to the mousy we . eee “ON” position The temperature is normal in the white range. If the needle enters the red range, let the engine idle until the water cools down and the needle moves back into the white range. ® Fuel meter @ Hour meter This indicates the amount of remaining fuel. F : Full tank is about 50 £ (18 gal) E : The remaining oil is about 96 (2gal). This indicates the total time the engine has run. Even if the excavator is not moving, the meter continues to count as long as the engine is run- ningOPERATING EQUIPMENT @ WARNING LAMPS (B Group) Pe When the starter switch is turned to ON position, the engine oil pressure and the battery charge lamps comes | | on until the engine is started, and go off after the engine is arted. ‘Always pay attention to the lamps to prevent problems before they happen. 4 Low fuel warning lamp When the starter switch is turned to the “ON” position, a warning lamp lights if the fuel is low If this lamp lights, please add fuol as soon as possible. When warning tamp lights up for approx. 30 seconds continuously, the warning buzzer sounds for only 10 seconds. ® Engine oil pressure lamp This lights when the starter switch is turned to the “ON position, and should turn off after the engine is started. If a problem arises in the lubri- cant oil system while the en- gine is running, a warning lamp lights Ve) ‘The engine may burn if the excavator is operated | with the engine oil pressure lamp on. 1, Stop the engine and check the quantity of engine oil. (Refer to page 3-2.) 2. If the cause is elsewhere, have the exca- vator inspected at KOBELCO distribu- tor. @ Battery charge lamp This lights when the starter switch is turned to the “ON” position, and should turn off after the engine is started The lamp lights if a problem arises in the charging system while the engine is running If this happens, have the excavator inspected at KOBELCO distributor. D Coolant temperature lamp If the coolant temperature rises abnormally (above 105 C or 221F) a warning lamp lights. © The coolant temperature may rise abnor- mally if the engine is run with an excessive load. Pe) | The engine may burn if the excavator is operated with the coolant temperature lamp 1, The engine is overheating. Stop opera- tion immediately and let the engine run at low speed to let the coolant cool down. 2. Once the coolant has cooled down, stop the engine. 3. Once the engine has cooled down, in- spect the amount of coolant, and check the fan belt for breaks or slack ® Air cleaner clogging lamp This Jamp comes on if the air cleaner filter is clogged. If the lamp comes on, clean or replace the element immedi- ately.OPERATING EQUIPMENT @ INDICATOR (C Group) These lamps indicate the working conditions. ® High (2nd.) travel speed lamp This lights when the travel speed is switched to high (2nd.) speed. The travel speed selector switch is located on the grip of the right travel lever The speed automatically returns to low ist.) speed when the starter switch is set to “OFF” @ Glow lamp When the starter switch is moved from the “OFF” to the “HEAT” position, the engine oil and battery charge lamp both turn on. (Refer to page 35.) The lamps also light when the starter switch is set to the “START” posi- tion @ SELECT SWITCH (D Group) pressed. (without fixing the throttle lever fixed to D Develeration switch (Option) FULL" and adjusting the throttle lever.) The decelera- The deceleration function works if this switch is de- tion function is released if this switch is pressed once again ® Working light switch If working light switch is pressed, the boom light lights. To turn this off, push the switch once againOPERATING EQUIPMENT (ARRANGEMENT AND OPERATION OF SWITCHES ) 2 4) Starter switch This is used to start or stop the engine. HEAT In this position, the glow plug is heated. OFF In this position, the power circuit is unconnected (Engine off) ON ssscIn this position, the power circuit is connected. (Engine on) START In this position, the starter motor turns and the engine is started. (The switch auto- matically returns to the “ON" position when the hand is released.) NOTE: The key can be used to open/close the starter, the hood, cab, the fuel cap and the battery cover. @ Travel speed select switch This switch is used to change the travel speed Press the switch on the right travel lever to change the travel speed Check the speed using high (2nd.) speed travel lamp on the monitor. If this switch is pressed when traveling in low (ist.) speed. High (2nd.) speed is selected and the rabbit lamp turns on. If pressed again, the speed returns to low (1st.) speed and the lamp turns off. NOTE: Low (1st) speed is set automatically when ‘the engine is started. Pe Do not use in places where road conditions are, poor or on slopes. | 3) Horn switch Push the switch to sound the horn,OPERATING EQUIPMENT The wiper of the front windshield operates WASH (Upper) ----" Washer fluid sprays out The wiper stops. The wiper operates. The wiper operates, while spraying out washer fluid OFF - ON WASH severe NOTE: When washer fluid is used up, do not turn the switch to the “WASH position. Otherwise the motor may be broken. ® Heater switch (Cab spec.) It is used to warm the cab interior and adjustable in two steps to control the warm air flow. NOTE: © The warm water of the engine is used for warming. The heater can be operated when the engine cooling water is warm, © Where the heater is not used in summer, tighten up the cock at the outlet of the en: gine warm water. ® Socket of 12V power source (EU ONLY) You can use it if you open fo cap and insert the socket for the car accessories X NOTE: It can not be used for the cigarette lighter.OPERATING EQUIPMENT (ARRANGEMENT AND OPERATION OF LEVERS } Safety levers This lever is used to lock the operation of attachment slewing and traveling © The function of operating lever is locked by means of hydraulic pressure, so the operating lever moves even the safety lever is locked. But the attachment and slewing do not operate In contrast, the travel lever is locked me- chanically, not allowing the movement. Locking method Pull the safety lever “A” backward and to- ward yourself. This raises the lever stand automatically and locks the operating lev- ers, Releasing the lock Hold the safety lever “A” and bring it fully down ‘When pulling up the safety lever, use care soas not to touch the operating lever. Unless the safety lever is pulled up to the upper end, the machine and tho slewing function may work. 7) | When parking or leaving the machine, always | bring the bucket down to the ground. ‘Then oper: ate the levers and lock ther re Even if the safety lever is set to the lock position, boom slewing and dozer blade motions are not locked. 1) | Safety lever se “Operating lever and pedals @ | Left and right operating levers + Boom swing operating pedal 4) | Pedal lock device ©) | Travel levers Dozer blade 6 [® iver lever |e | Option pedal operating lever Lock POSITION Lock on a5 Release(t} [ untock POSITION | Lock on 2-80@® Left and right operating levers These levers are for operating the boom, arm and bucket and for slewing A WARNING Operating this machine before checking function of each control lever can cause unexpected ma- chine movement, which can result in serious per- sonal injury. Make sure you check and know the function of each control before operating. | fh will be assembled to the right control lever at factory. ® Boom swing operating pedal Use this pedal to swing the hoe attachment right and left. © Press on the heel side (A) to swing to the right 55° ‘© Press on the toe side (B) to swing to the left 85° Cab specification (max. 80° to the left) ® Pedal lock device This is the lock device for the boom swing, optional operating pedal. The lock is re- leased if the pin of the pedal is pushed for- ward. OPERATING EQUIPMENT OPERATING LEVER PATTERN (iSO) Left operating lever | Right operating lever ® | Arm extending @ | Arm digging D | Boom lowering 2 Boom raising jewing left @ | Bucket digging _| [@ | Stewing right | @ | Bucket dumping Ho Pas | @ | ESOPERATING EQUIPMENT 5) Travel levers Use these to move the left and right crawlers forward and reverse. The excava- tor moves forward when the levers are pushed forward, reverse when the levers are pulled backward. When the travel motor is in the front of the ma- chine, the travel lever must be operated the other way. Before operating the travel lever, confirm the position of the travel motor. @) : Forward ® : Reverse NOTE: Never travel in second speed for more than @) Dozer blade operating lever This is the lever that operates the dozer blade. If the lever is pushed forward, the dozer blade goes down and if the lever is pulled toward yourself, the dozer blade goes up, © : Dozer blade down © : Dozer blade up 2 Throttle lever It controls the engine speed and outputs. © : Low idling The position at which the lever is pushed for- ward to the full. F : Full throttle -- The position at which the lever is puiled fully toward yourself. 2-10 @ Reverse @) |OPERATING EQUIPMENT @ Option pedal When optional attachment other than the standard one is used, this pedal is used for operation. For the handling of hydraulic breaker, refer to the Operator's Manual in the separate volume, (FUSE Box) ‘The fuses protect the electrical system from excess current. If operation is not normal, a fuse may be blown. Replace blown fuses with the spare fuses as follows. ea | Be sure the starter switch is in the “OFF” position | when replacing fuses. Livhen replacing NOTE ; When replacing a fuse, replace it with one of the same capacity. @ REPLACEMENT PROCEDURE 1, Remove the fuse box cover (1). To do this, grip the ends of the cover with your hand, and work it off in the direction of front side, 2. To remove the fuse, use your fingers. 3. Install the new fuse. Then securely rein- stall the cover. @ FUSE AMPERAGE AND CIRCUIT © Fuse capacities and names of circuits Fuse N rou ©. Jeapacity Circuits @ | 200 | HtHeater, Radio, «Wiper Relay, Monitor panel (gauge cluster), ® | 204 | Solencid valve | aoa | Working light, Deceleration motor 2 (option) @ | 30A_| Horn #Room light ® | 30A | Engine stop solenoid © | 5A | Safety relay, Battery relay Marked are indicated Cab spec.OPERATING EQUIPMENT A fusible link is installed near the fuse box to protect electrical fittings and wirings from over currents. In case power does not come when the starter switch is turned “ON”, a disconnec- tion of the fusible link ‘7 is suspected. Inspect and replace the fusible link Part No, +++» PH73S00001P1 STORAGE POSITION OF TOOLS For maintenance work, use the standard tools stored in the tool box under the opera- tor’s seat STORAGE POSITION OF GREASE GUN } For grease lubrication, use the grease gun stored in the tool box; open the tool box cover and take off the grease gun from grease gun fixing bracket. After use, fold the grease gun handle, wipe off the grease adhered to the nozzle with cloth and store it in place. Grease gun h 2-12OPERATING EQUIPMENT (CAB (OPTION) The following equipment are provided for the cab to ventilate or to facilitate operation. When using the equipment in the cab, set the safety lever to the lock position to avoid unexpected ma- chine movement if a work lever is accidentally contacted which could cause @ LOCKING CAB DOOR To lock the door in the open position, open the door fully until locks on the catch lo- cated on the rear of the cab. @ UNLOCKING DOOR FROM INSIDE To unlock the door, pull the lever @ back- ward. @ OPENING THE UPPER WINDSHIELD The upper windshield can be stored in the ceiling of the cab interior. 1, Park the machine on a level/solid ground and stop the engine. 2. Remove the connector @) for the wiper motor. 3. Lock the machine with the lock lever. 4. Pull the lock pin @ on the right and left at the top of the upper windshield in- wards and unlock it. 5. Grip the lower handle by your left hand and the upper handle by your right hand from inside the cab, draw them up and lock the lock pin @) at the back of the ceiling 7 When parking the machine, be sure to lock the lock pin @. Otherwise the upper windshield may fall down. Use key to lock & unlock cab door 2-13OPERATING EQUIPMENT © Closing the upper windshield 1. Park the machine on a level/solid ground and stop the engine. Lock the machine with the lock lever. Unlock the lock pin ®, 4. Grip the handle at the bottom of the upper windshield by your left hand and the handle at the top of the upper wind- shield by your right hand. Then bring down the upper windshield gently. 5. Be sure to lock the RH and LH lock pins 6. Connect the connector for the wiper motor, Pe | When closing or opening the upper windshield, be | | saroful not to catch your hand in the windshield, | @ LOWER WINDSHIELD After storing the upper windshield, lift the lower windshield by using both your hands to remove it from the window frame 1. Remove the lower windshield from win- dow frame. 2. Position lower windshield on rear holder ©. 3. Secure the windshield with plate 2 @ ROOM LAMP ON vr The lamp turns ON OFF The lamp remains OFF. 2-14@ OPEN/CLOSE THE WINDOW ON THE RIGHT SIDE 1. Release the lock (3) and move the slide glass 2. Close the window by returning the slide glass to the normal position with lock , and lock it, @ SUPPLY WASHER LIQUID The washer tank is installed on the right and front side of cab. 1. Check the washer tank for liquid level. 2. When the liquid quantity falls short, re- move cap and supply the automobile with washer liquid (OPENING/CLOSING THE COVER rer ith engine running Do not open 1. Open the hood, using the key. 2. Open engine guard, and then open ra- diator cover. Inspection, maintenance and lubrica- tion should be carried out according to Chapter 4 in this volume after opening the unit. NOTE: © Always stop the engine when opening the covers. ‘© When opening the covers, open engine ‘guard (D then open radiator cover (2. © When closing the cover, secure the 2 latches of radiator cover @) then close the engine guard (1). OPERATING EQUIPMENT 2-15 Engine ® ‘guard Rod (a>) || ay) } Ni Radiator! pgover (2 |OPERATING EQUIPMENT (SEAT BELT (USA ONLY) Cd | The seat belt is retractable, Always check the condition of the soat belt and mounting hardware before operating the machine, and wear seat belt during operation, | inspect for worn or frayed webbing, Check for worn or damaged buckle, retrac- tor, extrusion and mounting hardware. Replace them if they are worn or damaged. If the bolts and nuts of the mounting hard- ware are not correctly installed, the seat bolt can separate from its mounting. Make cer- tain the bolts and nuts are correctly in- stalled If bolts and nut are not correctly installed, remove them, Install a new bolt and nut @ TO FASTEN THE BELT With extrusion (3) held, extend the seat belt from retractor @ and insert extrusion 3) into buckle 4) until correctly latched. Use care to avoid twisting the webbing. @ TO UNFASTEN THE BELT Push both sides of gripper @) in, and extru- sion @ will be released from buckle @). Then allow the seat belt to slowly retract into re- tractor ©.(OPERATION } @ PREOPERATION INSPECTION CHAPTER 3. OPERATION Before starting the engine, walk around the machine to check for any loose nuts and bolts, any oil, fuel, or coolant leakage, and the condition of attachment and hydraulic system. Check for any looseness in the electrical wiring and for any accumulated material (leaves, dirt, etc) in high temperature areas. 1. Check the engine for any oil, fuel, or cool- ant leakage. Repair as required 2. Check the area around the engine and ra- diator for any accumulated material and remove as required. 3, Check the hydraulic equipment, hydraulic oil tank, hoses, and joints for oil leakage, and repair as required. 4. Check the track assembly, such as the crawler, idlers, and sprockets, for any damage or wear, and the bolts for looseness. Check the attachments, cylinders, linkages. and hoses for any cracks, wear, or loose- ness and repair as required. . Check the guards, steps, and handrails for damage, and the bolts for looseness. Repair and tighten bolts as required. Verify that the gauges and the gauge clus- ter function properly.OPERATION (CHECK BEFORE OPERATION } @ CHECKING THE COOLANT LEVEL 1. The reserve tank for the coolant is lo- cated on the right rear side of the ma- chine 2. The coolant level should be between FULL and LOW in the reserve tank (1). If the coolant is LOW, remove the reserve tank cap and refill with coolant. Use soft water such as tap water which not generate incrustaion, as coolant. 3. If the reserve tank is empty, refill with coolant from the radiator side. At this time, loosen the radiator cap slowly. After confirming that the pressure has been released, push the cap down and hold it down while turning to remove. PN Usually do not open the cap on the radiator body. Particularly never open the cap immediately after operation, Otherwise hot water sprays out and is | dangerous. _—_ —___ @ CHECKING THE ENGINE OIL LEVEL NOTE : @ Level the machine before performing the inspection. © Avoid overfilling the oil pan. Excessive oil may cause the engine to malfunction. © Bofore starting the engine, check the en ine oi level. © After operating the machine, check the engine oil level about 30 minutes after the engine stops. 1. Unlock the hood lock and open the en- gine guard 2. Pull out the level gauge @, and com- pletely wipe off the oil adhering to it. If the oil level is between the H and L, the level is sufficient. If oil is extremely contaminated or deteriorated, change it regardless of the periodical change pe- riod 4. If the oit lovel is low, refill with engine oil from the filler cap ©, After fill-up. check the oil level again. 4. Wipe off the filler cap (©) completely; then attach it 5. Close and lock the guard.@ CHECKING THE FAN BELT Check the fan belt for insufficient tension, wear, and damage. If the belt tension is in- sufficient, this may cause battery charge failure, overheating of the engine, or abnor- mal belt wear. If too much tension is applied to the belt, the bearings or belt may become damaged. See the section, MAINTENANCE, (EVERY 250 HOURS) for details on the in- spection and adjustment procedure for the belt. @ CHECKING THE HYDRAULIC OIL LEVEL 1, The hydraulic oil tank is located on the right side of the machine, 2. Set the machine to the hydraulic oil level check stance (as shown in the figure) on the level and solid ground; then stop the engine 3. Check the oil level with the level gauge @ on the side face of the hydraulic tank. If the gauge indicates that the oil level is between H and L, oil is sufficient The oil level changes according to the oil temperature, Thus, check the oil level according to the guideline below. © Before operation Around L level { The oil temperature is 10 ~ 30°C (60-86 F). J © During normal operation Around H level [ The oil temperature is 50 ~ 80 °C (122-176 °F). ] OPERATION Hydraulic oil level check posture |, | tank cover cE Vb BA [Love gauge GOPERATION (HANDLING OF THE NEW MACHINE } Poor handling of a new machine will have an adverse effect on its service life and per- formance. Warm up the machine sufficiently then oper- ate the machine with about an 80% load ac- cording to the table below during the break in period. Hour Meter Load = Up to. 10 hours 60% Up to 100 hours 80% Over 100hours | _ Full (ADJUSTMENT BEFORE STARTING THE ENGINE) Sit in the operator's seat and lean against the seat back. Adjust the operator's seat po- sition so that the pedals and levers can be operated while sitting in a natural position. LOCK POSITION i } Look on ft |) | XC ee SN J) SII | ll STARTING AND STOPPING THE ENGINE) PG Before starting the engine, set the safety lever to the lock position to prevent the machine from moving if the control lever is accidentally con- tacted. @ START-UP UNDER NORMAL CONDITIONS 1. Confirm that the safety lever (D is set to the lock position. 2. Before starting the engine, check the safety of your surroundings 3. Move the throttle lever to a little high than low idling position. 4. Insert the key @ and turn it to the ON Position, 5. Sound the horn to warn alll personnel in the vicinity.OPERATION Turn the key @ to START position to start the engine. After starting the engine, release the key immediately. The key will return to ON by itself. Nore. If the engine does not start even though the key is turned to the START position, turn the key to OFF and then try again. Do not continue holding the key at START for more than 15 seconds. 7, Move back the throttle lever 2) to LOW to warm up the engine. NOTE: If a warning appears on the gauge cluster when the engine is started, immediately stop the engine and troubleshoot. @ START-UP UNDER COLD CONDITIONS In cold weather, due to the increase in oil vis- cosity and decrease in battery performance, starting the engine may be difficult. Under those conditions, use the air heater to start the engine easily. NOTE: Do not use the air heater for more than 20 seconds continuously. If the engine does not start, return the starter switch to OFF, wait 30 seconds, and then try agait Perform steps 1- 3 mentioned in START- UP UNDER NORMAL CONDITIONS shown on the previous page. Turn the key @ to HEAT and preheat for 20 seconds to make start-up easier. Turn the key to START to start the en- gine, After starting the engine, release the key immediately. The key will return to ON by itself. Set the throttle lever to LOW to warm up the engine.OPERATION @ START-UP WITH THE BOOSTER CABLE Observe the following precautions wien using booster cables to jump-start the battery. Pd Explosive gas (hydrogen gas) in the battery. Do not produce sparks near the battery. Sparks may ignite the hydrogen gas produced in the battery and cause an explosion. To prevent pro- ducing sparks, do not allow the booster cable end to touch the machine. © Never smoke when inspecting the battery fluid level. © Avoid contact with skin or clothing and wear eye or face protection when working on or around batteries. © Wear protective glasses whenever jump- starting with booster cables. © Observe the proper procedures when starting ‘the engine with booster cables. Improper op- | eration may cause an explosion, resulting in se | rious injury. © Connect booster cables only with a battery source whose voltage is the same as the mal- functioning machine's. ‘© Turn OFF all lamps and accessory switches. If | they are ON, the accessories will begin operat- ing when the power is connected, and an acci: dent may occur. @ CONNECTING A BOOSTER CABLE Pe | The starting system of this machine is 12V. Use a 12V auxiliary battery. If the engine is started using high voltage, such as for a welding | machine, the electrical system will become dam: | aged. 1. Stop the engine that is running normally. 2. Connect one end of a booster cable (red) with the positive © terminal of a troubled machine and another with the positive © terminal of a normally operating ma- chine. 3. Then connect one end of another booster cable (black) with the negative © termi- nal of the normally operating machine and another end with the upper frame of the troubled machine. In the last connec- tion, sparks will occur. Therefore connect the booster cable as faraway from the battery as practicable. 4. After connecting the terminals securely, start the engine of the troubled machine. 5. After starting the engine, disconnect the booster cablesOPERATION. 1. Disconnect the booster cable (black) Cable disconnecting order 4-32 end that is connected to the upper frame of the troubled machine 2. Disconnect the booster cable (black) end that is connected to the negative © terminal of the normal machine @ DISCONNECTING THE BOOSTER CABLE ES connecting order a 3. Disconnect the booster cable (red) end that is connected to the positive @ ter- minal of the normal machine. 4. Disconnect the booster cable (red) end that is connected to the positive © ter- minal of the troubled machine. @ INSPECTION AFTER STARTING THE ENGINE Inspect and check the following items after starting the engine. A CAUTION If a warning appears on the Monitor Panel, imme: diately stop the engine and find the cause of the [ problem. 1. Check if the hydraulic oil level, shown, on the gauge on the tank side is at the specified level. 2. Check for any oil or coolant leakage. 3. Check for any battery charge or engine oil level alarm indication. Also, confirm that the engine coolant temperature and the residual fuel amount shown are proper. 4. Check if the noise and color of the ex- haust gas are normal. 6. Check for any abnormal noise or vibra- tion.OPERATION @ STOPPING THE ENGINE i Observe the following procedure for stop- | LOW IDLING ping the engine. 1. Normally, place the attachment to the ground before stopping the engine (ex cept for special situations). 2. Pullupon the safety lever to set it to the lock position 3. Move the throttle lever (1) to LOW and idle for about 5 minutes NOTE: To maintain the engine properly, be sure to Idle it for about § minutes before stopping. 4. Turn the key @) to OFF to stop the en- gine. 5. Pull out the keyOPERATION (WARM-UP RUNNING } @ WARMING uP THE ENGINE | Red H SQ TEMP | aS Se eS | yp OlTemp | engine problems or malfunctions, White ~ 1, Run the engine for about five minutes at no load, 2. Ifthe Monitor Panel engine coolant tem- Blue © perature gauge needle is within the white range, the engine is thoroughly | warmed up. —_— 7 @ WARMING UP THE HYDRAULIC OIL The proper hydraulic oil operating tempera- ture of this machine is approximately 60°C (122°F). If the machine is operated sud- denly when the temperature is 26°C (77°F) or less, this may seriously damage the hy- draulic equipment. Before operation, warm up hydraulic oil to 25°C (77°F) or more to prevent damage to hydraulic system compo- nents and ensure proper operation of con- trols. The warm-up procedure is given below. NOTE: Warm up sufficiently during winter or in cold regions. 1. Increase the engine speed to intermedi- ate. Operate the bucket lever intermittently for about five minutes. 3. Operate the arm, boom and slewing sys- tems at no load until warm hydraulic oil circulates throughout the hydraulic equipment. 4. After warming up the hydraulic oil, in- crease the engine speed to maximum and proceed operatingOPERATION (SPECIAL PROCEDURES ) @ RELEASE FROM SLEWING BRAKE If the attachment should be slowed by exter- nal force with keeping the slewing motor braked, some larger force than the braking force would act on the slewing motor. That might cause for troubles on the motor. When the rotation of attachment is neces- sary, release the slewing brake in advance. PG It is dangerous to release from the slewing brake ona slope. The machine may be tipped over with losing balance. Besides, when the brake is re- leased, the attachment can be rotated with a slight force. Pay special attention not to be rolled into the attachment. A CAUTION Pay attention not to allow invasion of dust and/or | | foreign mattors at the removal and reinstallation | of the slewing motor cover. Such dust and/ or | foreign matters may cause for troubles. 1, Remove the floor mat and cover in front of operators seat. 2. Remove three hoses connected to swing motor. Put rags around the motor cover 7) against the oil flowing out from the slewing motor. 4, Loosen four pieces of socket bolt 2) for the motor cover (1). Then remove the cover. 5. Pay attention not to drop off the valve plate @) NOTE : At this point of time, the brake is released. 6. Take off sixteen pieces of spring @) from the brake piston 7. Keeping the springs @ removed, install the motor cover @) to the housing, pay- ing attention not to roll in the O-ring © Tighten four pieces of socket bolts @ with a cross-tightening method Tightening torque : 6 + 0.5 kgf+m BN “'SkaSSR : M10 HEXB | |NOTE: At the installation of motor cover, apply ‘grease onto the valve plate not to drop off it. Pay attention for the installing direction, too. Because the brake is released, the attach- ment is possible to turn by hands. Move the machine to a safe place, and con- tact with KOBELCO distributor. @ RELEASING LOCK ON TRAVEL MOTOR While the travel motor is being standstill, the travel motor is hydraulically locked by the function of the counter balance valve. When the machine becomes unable to travel due to any troubles on the travel motor, etc., it is possible to temporarily move the machine by means of releasing lock on the travel motor with removing the spool in the counter bal- ance valve of the travel motor. rere When dis/re-assembling the travel motor, pay special attention not to allow invasion of foreign particles and dust into the travel motor. 1. Remove the shoes in accordance with Removing Rubber Shoes” in page 3-30. 2. Apply safety blocks under the lower frames of left and right (travel motor side) , and get down the machine which has lifted up, then stop the engine. 3. Remove the travel motor cover @) on the lower frame with loosening three bolts 2) 4. Provide a vessel to receive draining oil under the travel motor, then remove the hoses. Since the draining oil comes out from the hoses and oil port, receive it in the vessel. Put a stopper cork or alike to all openings on the hoses to cap them. NOTE: To avoid erroneous connection of hoses, put a mark, such as the port name, on each hose at their removing. 5. Remove the capscrew @) with a spanner to remove the travel motor from the lower frame Gradually loosen the capscrew paying at- tention not to drop off the travel motor. For SK40SR : nine capscrew (3) (M12 x 35) For SK45SR : nine capsorew @) (M14 X 35) 3-114 OPERATIONOPERATION 6. Remove the plug 4 with a wrench For SK40SR : HEX 36mm For SK45SR . HEX 30mm 7. Remove the spool 5) If it is difficult to re- move, use a plier applying a soft material such as a piece of cloth not to give any damages on the spool. The spring 6 and washer plate 7 will be removed at the same time. 8. Install the plug & 9. Install the travel motor to the lower frame. 10. Remove the travel motor of the other side with the same procedures of the above three through nine 11. Install the shoes in accordance with “Installing Rubber Shoes” in page 3-30. 12, Due to removing the spool, the travel motor is released from locked condition. Move the machine to a safe place with a tractor, if it is available. If some peoples four to six persons) are available around the machine, move the machine to a safe place with these peoples. NOTE: After moving the machine to the safe place, call up a serviceman to check the trouble. i | Relief block 3-12 @OPERATION @ LOWERING THE ATTACHMENT By means of changing the setting pressure of the port relief valve on the control valve, the attachment can be lowered by its own weight 1, Loosen capscrew and remove cover <1 2, Change the setting pressure of port relief valve on the control valve 3, If you turn the locknut counterclockwise, the attachment begins to descend NOTE: The change of the setting pressure must be carried out as slowly as possible, paying at- tention to the lowering condition of the at- tachment. It is impossible to raise up the attachment again 4, When such lowering of attachment is car- ried out before moving the machine to a safe place the attachment should be low- ered down to thirty to forty cm above the ground 5. After moving the machine to a safe place, get touch the with ground 6. Call up a serviceman to have the machine checked. 7. Install cover (1) to specified position NOTE: Contact with your KOBELCO distributor for repair after lowering the attachment to the ground. 3-13 ®OPERATION OPERATION PROCEDURE } @ PRECAUTIONS DURING OPERATION NOTE : © The Monitor Panel does not necessarily indicate all of the machine's conditions. Thus, do not depend (on only alarm indications on the Monitor Panel. Perform daily inspections, following the items listed in this operators manual. © If a problem occurs during operation, immediately stop the operation and troubleshoot. © Never operate the machine until the malfunctioned part is repaired. If the machine continues to be operated while it is still malfunctioning, a serious accident may result. @ PROCEDURE FOR THE OPERATING LEVERS AND PEDAL a The boom, arm, bucket, slewing, dozer blade ) | and swing motions can be done independ- | 7 YO ently or simultaneously by using the operat- ing levers. | PW Operating this machine before checking function of each operating lever can cause unexpected ma- | | chine movement, which can result in serious per~ | | sonal injury. | Make sure you check and know function of each operating lever before operating NOTE: The horn switch will be assembled to the right control lever at factory. @ OPERATING LEVER PATTERN (ISO) Left operating lever_| Right operating lever | Armextending | 1 | Boom lowering i ® | Arm digging 2 | Boom raising | 2 | Slewing left 3: | Bucket digging @ | Siewing right _| 4 | Bucket dumping @ DOZER BLADE OPERATING LEVER ® | Blade down 10 | Blade up © BOOM SWING OPERATING PEDAL — Use this pedal to swing the hoe attachment left and right. | Push the heel side di | Push the toe side 2 ab | Right 55) w | Left 35 | NOTE : Cab specification (max. 80° to the left) 3-14 @@ TRAVELING PROCEDURE Pd If the travel motor is located in the front of the machine, the travel lever must be operated the other way. Confirm the position of the travel motor before operating the travel lever. Pen ‘Check that the area around the excavator is safe, then sound the horn to signal that you are starting to operate the excavator. 1. FORWARD/REVERSE TRAVEL To move the machine forward, push for- ward both (right and left) travel levers. To move the machine in reverse, pull back the two travel levers. Travel speed changes according to how far you push or pull the levers 2. PIVOT TURN Pivot means to change direction only one of the tracks. It is effected by pushing and pulling one of the travel levers. 3. SPIN TURN Spin turn means turning the vehicle around on-the-spot, by driving the RH and LH tracks in opposite directions. To do this, push one of the travel levers forward and pull the other one back NOTE ; @ Depending upon types of shoes and ground condition, the climbing ability of the ma- chine is 30° (58%) maximum. ‘© When descending a slope, operate the lev- ers slowly. For braking, bring the levers to neutral position, and the will brake by self [Spin turn} 3-15 © | motor. OPERATIONOPERATION @ TRAVEL PRECAUTIONS Pa Use a flag-man when traveling on the shoulder of | a road or in a confined area, | 1. Before operating the travel ievers, confirm which direction the tracks and travel mo: tors are facing. 2. Travel on flat ground and in straight lint (or large angles) as much as possible When turning the machine, use alternat- ing forward and reverse movements as much as possible instead of making one sharp turn 3. Check the strength of bridges and road shoulders, and reinforce them if nece: sary. 4. Use decking or plating to protect roads. Be especially careful when steering on pavement in hot season 5. Be careful not to come into contact with bridges or electrical power lines. 6. When traveling on rough ground, use low (1st) speed to reduce the shock to the ma~ chine. 7. Prevent boulders from striking into the travel motor. Also, do not run over such boulders, because of the unreasonable force it places on the traoks. 8. When traveling or loading/unloading on snowy or icy roads, prevent the machine from slipping because of clogged shoes. Cor direction is reversed 3-16 4 n where the driving Travel directionOPERATION @ OPERATING THE MACHINE IN WATER AND ON SOFT GROUND 1. Where a river bed is flat and water current is slow, the machine may be operated in a water-depth to the lower rolling face of the upper roller. Where river bed condi- tion is poor or water current is fast, pay full attention so the slewing bearing, slewing pinion and swivel joint are not im- mersed in water or mud. NOTE: If the machine is operated in water or mud, the slewing bearing and others may be worn abnormally. Immediate replacement of ‘grease or overhaul of the slewing bearing is required. Suspend operation and contact, with KOBELCO distributor. 2. Ona soft ground, the machine body sinks little by little in some cases. Therefore, pay full attention to the machine at all times during operation. @ MOVING THE MACHINE ON SOFT GROUND. Avoid moving the machine on soft ground as much as possible. 1, Move the machine to an area in which the machine is able to drive itself. 2. When working on soft, weak land, use care 50 as not to get in beyond a depth at which the machine may be pulled out should it get stuck, 3. In case you can not drive the machine, lower the bucket to the ground and lift the machine slowly by pushing the boom and the arm towards the machine body. When. doing this, operate the machine so unrea- sonable force is not exerted upon the ma- chine when operating the boom, arm and travel levers at the same time. 4. Incase the machine is not able to travel because its under carriage is stuck in mud, sand or gravel, take each track off the ground by pushing the boom and arm against the ground, scrape off mud, sand and gravel and then get the machine out of the trouble. Gravel and mud may be cleared if you rotate the raised track back and forth, 7 \\ //\ Upper roller r j | 5. If the machine should sink in soft ground and can not escape by its own power, pull the machine out by using another ma- chine. Use care in placing wire slings around the machine Refer to page 3-16, “How to pull the ma- chine body”. 3-17OPERATION @ CARE TO BE EXERCISED WHEN WORKING ON A SLOPE CEO | Machine oparation on a slope is inherently danger | ous. Step down speed, using care so the machine | does not turn ver and slide sideways. 1. Do not change directions on a slope as it may cause the machine to turn over or slide sideways. In case you must change direction on a slope for an unavoidable reason, do it on a mild slope on solid ground 2. Avoid crossing a slope as it may cause the machine to slip sideways. 3. When working on a slope, do not slewing the machine in a down hill direction. This will reduce the stability of the machine. Perform slewing and boom actions care- fully at low speed. @ HOW TO PULL THE MACHINE BODY PEW In case of pulling another object with the machine, do not pull the one whose weight is beyond the own weight of the machine, because it is dangerous. 1. Improper pulling of the machine that be- comes out of order, may cause serious in- jury. 2. Use wire ropes with plenty of strength when the machine is pulled by another machine. 3. Never pull the machine on an inclined place. 4, Do not use the wire ropes with kink, twist- ing and/or damage. 5. Always provide a watcher during the pull- ing in order to immediately stop the pull- ing when any abnormalities happen. 6. Keep a plenty of distance from the wire ropes during the pulling 3-18 @OPERATION (OPERATING METI DS FOR IMPROVING EFFICIENCY © DIGGING 1, When digging, use a combination of arm digging and bucket digging to achieve maxi- mum bucket penetration and efficiency. 2. When moving the boom raise or lower, begin and end the operation very slowly and smoothly. When the boom is stopped suddenly, strong shocks are exerted upon the machine body, causing excessive wear and possible damage, 3. Point the bucket teeth at the direction of digging. This will decrease digging resis- tance and possible damage to the teeth 4, When maximum digging force is needed, dig earth slowly having the boom and the arm at nearly 90° to 110° 3-19 ®OPERATION 5. Never extend and retract the arm cylinder repeatedly with the arm cylinder extended at maximum to empty material. If sand and soil do not fall out, move the bucket lever back and forth a few times. Avoid shaking ou’ soil using shock at the end of the bucket cylinder stroke. @ DOZER BLADE Pull the attachment in before using the dozer blade for leveling. 1. Remove soil from the top of mound. If there is too much load on the excavator, adjust the dozer blade up or down, 2. Remove soil from the sides of mound. @ SIDE DIGGING A WARNING ‘As the boom swing operating range is wider, oper- ate the attachment paying attention to the sur: rounding condi By pressing the front and rear parts of swing pedal alternatively, the boom swings in left and right directions and slews ena- bling side digging in narrow spaces. By pressing the front part of swing pedal, the boom swings leftward, and by pressing the rear part the boom swings rightward. The advantage of this function is that it en- ables side digging work as shown in the fig- ure. The left swing angle can be made smaller by means of the swing stopper. (Cab specifica- tion and when wide bucket is attached.) () Lett swing (A)@ LOADING 1, When loading, position the machine at the back of the dump truck to be loaded Avoid slewing the arm over the operator's seat of the dump truck or other personnet It is recommended that loading be started from the front side of the dump truck body. This will make loading easier and more soil can be loaded than loading from the side. @ WORKS IN NARROW SPACE The position shown in the Figure is available for slewing in narrow spaces. @ MINIMUM SLEWING POSTURE 1. Extend arm cylinder and bucket cylinder to maximum length, and fold bucket. 2. Extend boom cylinder to maximum length 3. Swing boom by pressing pedal to operate rightward. 4. Handle operating lever to slew it @ AT SWING (Minimum slewing radius) spec] __Skaosa [skassh oN 165m Arm | 173m Arm Boom Canopy Cab |Canopy| Cab At swing 1540 1,710 | 1,580 | 1,960 (Minimum slewing radius) {(bef@5") (Lote 0") | Let a5] Lete 0") Not swing (Minimum 2.040 2.190 | 2.100 | 2.480 slewing radius) NOTE: Use care to protect attachment from inter- ference. OPERATIONOPERATION (PROHIBITED OPERATIONS } @ DO NOT OPERATE THE MACHINE BY ITS SLEWING FORCE Moving rocks and debris and destructing side walls by the slewing force of the ma- chine will damage the front attachment and cause a reduction in the service life of the slewing system of the machine. @ DO NOT OPERATE THE MACHINE BY ITS TRACTIVE FORCE Do not travel to load bucket. These opera- tions will exert unreasonable force upon the machine structure. @ BEWARE OF MOVING THE CYLINDERS TO STROKE ENDS If the bucket cylinder and the arm cylinder are moved to the end of their stroke repeat- edly to shake off subject to impacts which results in excessive abrasion and damage to the hydraulic cylinder. Always stop the cyl- inders before they reach the end of their stroke. @ AVOID HAMMERING OPERATION Do not perform hammering and pile driving operations, using the bucket. Such opera- tions cause damage to the bucket and the front attachments of the machine. Such op- erations are dangerous and should be avoided in all circumstances. anaOPERATION @ DO NOT DO UNREASONABLE DIGGING Do not lift machine body and float to the ground to dig material as it exerts unrea- sonable force upon all parts of the machine. @ CAUTION FOR FOLDING UP ATTACHMENT When the attachment is folded up travel or transport, pay attention for the bucket not to hit the dozer blade @ CAUTION FOR DEEP EXCAVATION During the digging works for a deep place with putting the dozer blade at front posi- tion, Pay attention not to get touch the boom cylinder with the dozer blade For such works, put the dozer blade at back ward, except the necessity © CAUTION FOR DOZER BLADE TO HIT OBSTACLES Pay attention for the dozer blade not to hit any obstacles such as rock lump. It causes for damages on the dozer blade and cylinder. 3-23 @OPERATION @ DO NOT SUPPORT MACHINE WITH DOZER BLADE AT ONE END When the dozer blade is used as an outrig- ger, do not support the machine at one end of the dozer blade, but surely at both ends. @ DO NOT USE THE MACHINE TO LIFT This machine is designed for digging and loading operations. Use extreme caution when handling heavy loads. Do not exceed the machine's capacity. Use only approved slings and shackles (clevises). Never lift a load by using the bucket teeth @ DO NOT HIT THE CAB WITH THE ATTACHMENT When operating the boom, arm, and bucket simultaneously, the bucket may contact the cab or machine front Before using a new attachment for the first time, confirm if there will be interference with other parts. Caution for interference 3-24 DOPERATION PARKING THE MACHINE ) NOTE: Close the cab door and windows fully when parking. If the machine is parked with the door or windows open, wind or rain may damage the electrical equipment, such as the controller in the cab. 1, Park the machine on the level ground. Set the arm vertical to the ground and lower the bucket to the ground. 2. Pull up the safety lever and set it to the lock position. 3, Set the throttle lever to LOW and idle for 5 minutes, The temperature of the engine will cool gradually, helping to prolong the engine life. 4. Turn thestarter key to OFF to stop the en- gine; then pull out the key 5. Before leaving the machine, close the win- dows, door, and each cover, then lock the machine. (PRECAUTIONS AFTER OPERATION 1. After operation, lower the bucket to the level and solid ground where no rockslide, landslide or flooding is expected. 2. Fully refill with fuel. However, do not overfill (to the top of the tank). When the external temperature goes up, the fuel may expand and overflow. 3. Remove any mud adhering to the track as- sembly. 4. Check for any oil or coolant leakage. Check the attachment, exterior, and track assembly. Immediately repair as required,OPERATION (CAUTION ON USING RUBBER SHOES ) @ 4 GOOD WAY OF USING RUBBER SHOES The rubber shoe offers excellent features which a steel shoe does not possess. However, if it is used the same way as the steel shoe, advantages of it can not be util- ized to the full. Operate the machine by the best use of rubber shoes, depending upon site condition and types of operation. Comparison between rubber shoe and steel shoe lubber shoo] Steal shoe Less vibration © A Smooth run © ° Low sound o lA No harm to paved road| © A Simple handling © A Susceptible to damage | A ° Large traction power © ° © : Excellent QO: Good A : Ordinary @ CAUTIONS ON THE USE OF Prohibited work, RUBBER SHOE Pear Operations and slewing motions on such places | shall not be performed. Gravel-mixed land, rugged and solid rock bed, ferro-conerete, iron scraps, edges of iron plates. A CAUTION (On such places as riverbeds where there are lots of rolling stones of different sizes, the rubber shoe tends to be damaged or derailed as the result of gravel inclusions. The service life of the rubber shoe will be reduced if soil is pushed by force when ‘the rubber shoe is slipping. Pe Do not let grease, solvents, etc., get on rubber | shoes. If it does, wipe it off with a cloth The rubber will deteriorate rapidly if the grease, solvents, eto., are not removed. Although the rubber shoe displays many ad- vantages because of its material properties, it has disadvantages in terms of strength. It is therefore necessary to get fully familiar with the characteristics of the rubber shoe and observe what are prohibited and cau tioned against, in order to extend the service life of the rubber shoe and have it fulfill its advantages to. a maximum possible extent. Do not fail to read through "Cautions on using rubber shoes” before use. @ GUARANTEE OF RUBBER SHOE Guarantee does not cover such damages done to the rubber shoe that result from improper handling and/or operation as; Failure to inspect for proper tension, execution of site work in such places where there are iron plates, U-drains, block corners, sharp crushed gravels and stones, ferro-concrete debris, iron scrans and others which may tear off the rubber shoe, and neglect to observe prohibited op: erations,Pee Do not enter such heated places as an open-air fire, iron plate and asphalt left in the sunshine, | © When storing the machine for long period (three months), keep it indoors which will not be exposed to direct sunshine and rain, rea If the machine is moved on the crawler of one side with the crawler of another side floating, the rub- | ber shoe may come off or be damaged. @ CAUTIONS ON USE Use care of the following when working, Pn Rubber shoes slip easily, icy surfaces. Take the nocessary safety precautions, such as not | | driving on snowy, icy slopes. | 1. Avoid making a spin turn on a concrete road. 2. Avoid abrupt change of directions as such will cause early wear or chipping of the rubber shoo. 3. Exercise care so the rubber shoe is not damaged by the bucket while working 4, Do not operate the machine by pressing the bucket against concrete ridges and walls 5, When the machine is lifted up by the boom and arm, lower it gently. OPERATIONOPERATION 6. If the machine handles salt, ammonium sulfate, potassium chioride, potassium sulfate or double superphosphate of lime, the adhesion of the core metal of the shoe will get loose. Refrain from using the shoe or wash it with water after use. 7. The rubber shoe should be used within 25°C ~ +55°C (13°F ~ 131.0°F), con- sidering the physical properties of rubber. @ HANDLING THE RUBBER SHOE Use the rubber shoe under proper tension to prevent it from coming off. Undertensioning causes slipping-out of the rubber under the following conditions. Operate the rubber shoe carefully even when tensioning is proper 1. Avoid slewing the machine where there is bit difference in level (about 20m). At such objects as a curbstone or a rock. When crossing over a place where there is a difference in tevel, do it at right angles with the difference in level 2. When climbing back on a slope, avoid turning the machine while climbing on a point be- tween a level ground and the slope. If you have to slewing on a slope, do it very slowly. 3. If you travel on a slope or a concave with one side of the machine lifting, it will dam- age the rubber shoe. Always travel with both sides of the machine body level Pe Do not turn the machine with the rubber shoe in a | posture as shown in the figure as it will cause the | rubber shoe to slip out or be damaged. |OPERATION (INSPECTING THE RUBBER SHOE } Repair or replace the rubber shoe if it falls into the following condition 1 Lower roller 1, The height of lug _ | If the lug of height @ wears off, traction | power decreases. Replace the shoe witha | new one if @ gets down below 5mm. Mae Metal core - LIF MU. x Yee COAT 2. If the lug wears out at an extent that the steel cord in the shoe is exposed over two links, replace the shoe with a new one. 3. If the core metal of the rubber shoe is found to have slipped out at more than one place, replace the shoe with a new one. 4. If a crack which has developed to about 60mm length is seen between the rubber shoe and the lug, repair the shoe. However, repair the shoe immediately if For 60mm or over, repair the steel cord inside is seen exposed even ere though a crack is small and short. ‘or repairs, contact your KOBELCO dis- tributor. Nori Repair is not yet necessaryOPERATION (REMOVING RUBBER SHOES ) 1. Loosen the tension. 2. Lift the excavator body using the attach- ment and dozer blade. 3. Place iron pipes in the shoe, and slowly turn the sprocket towards the back. 4. Stop the sprocket when the iron pipes reach the idler and the shoe comes away from the idler. 5. Slide the shoe to the side and off. PME When performing the above-mentioned operation, confirm that the inside grease is completely emp- tied before turning the sprocket. It is abnormal if grease does not come out when the grease nipple is loosened. Contact your KOBELCO distributor. PL Do not loosen the grease nipple more than one turn, Use care as it may jet out because of high | pressure grease inside. If grease is hard to get } out, move the rubber shoe back and forth. | CINSTALLING RUBBER SHOES ) 1. Place the shoe on the sprocket and set it on the crawler frame. 2. Place iron pipes in the shoe, and slowly turn the sprocket towards the back. 3. Stop the sprocket when the iron pipes reach the idler. Slide the shoe until it can be securely set on the idler, then remove the iron pipes. 5. Once the shoe is securely on the sprocket and idler, adjust the tension. 6. Check again, then lower the machine NOTE: When switching from steel shoes to rubber shoes and vice versa, contact your KOBELCO distributor. {REMOVING Direction of rotation INSTALLI Direction of rotationOPERATION (HANDLING UNDER SPECIAL CONDITIONS ) @ HANDLING UNDER COLD CONDITIONS NOTE: When the temperature is extremely low, oil flow properties become low, making start- up difficult; coolant may freeze, damaging the radiator. 1, FUEL AND OIL Use fuel and oil of high quality for each system. See section, MAINTENANCE, “RECOMMENDED OIL VISCOSITY AND ITS CAPACITY” for details on the proper viscosity. 2. COOLANT * When driving or storing the machine in cold regions, the ratio of mixing antifreeze into ‘the cooling system should conform with the lowest predicted ambient temperature. If coolant freezes, the radiator, crankcase, and cylinder head may become damaged. + When shipped from the factory, the machine contains coolant in which all-season-type LONG LIFE COOLANT is mixed + When driving or storing the machine when the temperature is low, inspect the coolant to maintain proper concentration. 3. BATTERY ‘When the temperature becomes low, the charging ability may go down or the battery may freeze. Charge thoroughly at the proper time and cover the battery for heat insula~ tion Keep the battery fluid’s specific gravity be- tween 1.30- 1.25 { 20°C(68.0F) }. If the spe- cific gravity goes down, the battery may be apt to freeze 4, AFTER OPERATION Mud and water adhering to the machina may freeze and this may become it inoperative Keep the following measures to prevent mal- functions. + Remove mud and water adhering to the machine, Remove water adhering to the rollers thoroughly and park on dry ground to prevent the track assembly from freezing. + Retract the cylinder rods to minimum length to reduce exposed area of the rods. This will prevent mud or water on the rod faces from damaging the seal. 5. HANDLING OF ELECTRICAL EQUIPMENT The electrical equipment is especially sensi- tive to water. Be careful not to expose the electrical equipment to water when washing the machine or when it is raining. The con- troller (microcomputer) is installed at the ‘operator's seat of the machine Never expose the operator's seat to water. @ OPERATION ON BEACHES 1. BEFORE OPERATION + Check the plugs, cocks, and covers for looseness. + Apply grease to the electrical equipment as required to prevent corrosion. 2. AFTER OPERATION Wash the machine thoroughly to remove salt. Apply oil or grease as necessary to prevent corrosion. @ OPERATION IN DUSTY AREAS 1, AIR CLEANER Clean or replace the element at the proper time. 2, RADIATOR Clean the radiator at the proper time to prevent the radiator core from becoming clogged with dust. 3. FUEL Be careful not to let contamination in the ful when replenishing it. Inspect the ele- ments and filters at the proper time. 4. ELECTRICAL EQUIPMENT Clean the starter and alternator especially, at the proper time, to prevent dust from ac- cumulating @ HEATER HANDLING METHOD (CAB spec.) 1. When the ambient temperature is low, turn the car heater on to warm. 2. When you need to use the heater, open engine guard and open the valve ‘mounted on the water manifold on engine upper part by turning it counter clockwise to circulate the engine cooling water 3, When the heater is not used for long time due to an off season, close valve @) by turning it clockwise. NOTE: Since the heating system using hot water from engine cooling water is employed, the hot air does not blow if the cooling water is ‘not warmed.OPERATION (PRECAUTIONS WHEN § FORING THE MACHINE FOR A LONG PERIK When storing the machine for more than one month, observe the following points to prevent the machine functions from deteriorating. Item Cleaning Lubrication Battery Coolant Dust and humidity prevention Periodical operation for lubrication (during storage) Action Clean the machine thoroughly. | Check the track assembly for any malfunctions and service as re- quired. Grease every required part Check the lubricating oil to make sure it is at the proper level and for contamination. Replenish if necessary, and change if contaminated. + Lubricating oil deteriorates even when the machine is not used, + Be sure to check the oil before using the machine again, Apply sufficient rust preventives to portions where rust is likely to occur (especially the exposed rod of the cylinder) Remove the negative terminal from battery or remove the battery from the machine and store it. If there is a possibility that the radiator may freeze, mix antifreeze in with the coolant. Normally, long life coolant is mixed in, so it is not necessary to change the coolant, f == | f _ Qt | Keep the machine in a dry place indoors. If the machine must be kept outdoors, lay timber on the flat ground and protect the machine with cover * Park the machine with the exposed piston rod of the cylinder re- tracted as much as possible + Lower the bucket to the ground and set the blocks on the track. If the oil film on the parts is insufficient and the rust, abnormal wear may occur when the machine is operated the next time, Start the engine and operate the machine and operating unit once a month to lubricate all of the parts. + Before starting the engine, check the engine oil and coolant level, and replenish if insufficient | + Wipe off the rust preventives from the cylinder and piston rod throughly, + After starting the engine, warm up the machine completely. Repeat traveling, slewing, and excavating several times to lubricate each part of the machine.CHAPTER 4. MAINTENANCE { MAINTENANCE | La / (PERIODICAL INSPECTION AND MAINTENAN @ PERIODICAL INSPECTION AND MAINTENANCE Periodical inspection enables the machine to make the most of its functions and prolongs the machine life. Basically, lubrication and maintenance intervals are determined by the hour meter. If performing lubrication and maintenance according to calendar time is preferred, the hour meter reading corresponds to the lubrication and maintenance period (daily, weekly, monthly, etc.) in calendar time; thus calendar time can be used. Items for which service time cannot be specified are explained in the section WHEN REQUIRED. It is recommended that re- plenishment and maintenance should be performed earlier than the service time specified in the LUBRICATION AND MAINTENANCE INTERVALS list when using the machine under severe conditions or in dusty or humid areas. @ USE GENUINE KOBELCO PARTS Use only genuine KOBELCO parts and oil for replacement and lubrication @ KEEP THE LUBRICANT CLEAN Store the lubricant at the clean place in- doors. Prevent dust or water from being mixed in with the lubricant. Use only clean lubricant in which water is not mixed @ KEEP THE MACHINE CLEAN Clean the machine to make it easy to dis- cover problems, such as oi leakage, cracks, and looseness. Especially clean the grease nipple, bleeder, and oil level gauge (oil in- spection window), @ USE CAUTION IN REGARD TO THE COOLANT AND OIL TEMPERATURE Do not replace oil, water and filters immedi. ately after the machine is stopped since they, will be very hot. Wait until the machine cools down to change them. If the oil, how- i iidssdysssss ever, is very cool, warm it up first [to ap- a proximately 20-40°C (68-104°F )] then dispose of it maaaaira = ] lass ~ @ CHECK THE WASTE OIL AND FILTERS . Foreign materials After changing the oil and filters, check the waste oil and replaced filters for the amount of metal chips or foreign materials.MAINTENANCE @ POST THE WARNING TAG When inspecting or performing maintenance on the machine, post a “Do not operate’ warning tag near the starter switch or con- trol levers. @ PREVENT DUST FROM BEING MIXED INTO THE OIL When removing hydraulic hose or compo- nents, insert a plug into the connector or port to prevent foreign materials from en- tering @ KEEP THE MOUNTING FACE CLEAN After removing the O-ring or gasket with a seal, clean the mounting face and replace with a new one, When installing the O-ring or gasket, apply a thin layer of oil to the seal @ USE CAUTION IN REGARD TO THE INTERNAL PRESSURE Release the internal pressure before remov- ing the hydraulic system, air system, or fuel system; piping or coupling of the cooling system; other related parts to which internal pressure is applied. @ USE THE PRECAUTIONS BELOW WHEN WELDING + Turn OFF the power (turn OFF the starter switch). + Disconnect the negative © cable from the battery. + Do not use 200V or more continuously. + Have the grounding (wire) be within 1m from the welding part + Make sure that there is no seal or bearing between the welding part and grounding @ DISPOSE OF WASTE OIL PROPERLY Collect waste oil in containers such as oil cans, and dispose of it as industrial waste in accordance with your country’s environ- mental protection laws. NEWMAINTENANCE "RECOMMENDED OIL VISCOSITY AND ITS CAPACITY (SK40 © Fuel and oil Sa) Regardless of the ambient temperature, the types of oil used for the reduction units are given below: Travel reduction units ~ Engine Oil Classification API Service CD SAE3O | Capacity Type of oi! | Use (depending on the temperature) Specified Unit Neme (When -2P <4 14° 32° 80° 68 86. 104 F | and grease | " changed) | 30° -20° -10° “0° 10° _20°_30° 40° | _lubricant adel ) iso_VG68 | Kwea : === KOBELCO tigreulie ol tank Hydraulic | System | _ ge tS0._. VGA E>) _|KWNAB Josnuine ell (25-19al.) iso _vea7 Kws2s| Slowing Automatic] |) ] T reduction unit | ___| circulation [ | \ rhe SAEI0W-30 > | Engine oil ioa1) | | uae: ase classification for pen Engine oi |“, bal SE iene 6b" — (0.8ga1.) _| Travel O78 : KP; elassifcation reduction unit (o.2aa1.) x2 SSeS for “service CO” ae ‘ASTM D675 No.2 ASTM DIS Fuel tank Diesel fuel an aa + (18.2901) ASTM D975 No.1 leona as i 7 [RQgELcO 0.89 Ta || antitreare iF com. Redietor Coolant | Total water 50% LLC mixture > | | mervig| coolant is Cresorverank) | (LLC) | volume eam LUE mare | Beara . with the specified Upper roliers | ers _| API Lower rollers | classification for — 1 “service GL-#” Front idlers Retachment and) 7 f Exirare presire dozer blade pin_| _ { | Mul tipurpe Swing cylinder} Graqgg | 20 P1808 1 Rod Liam |] base arene | 1 place ee Track adjuster | Grease | 2 places [_|ssrenltoor ee ee BBR NOTE: Use of Bio-degradable Oils When you use Bio-degradable 3. 4. il (BIO OIL), refer to the following information. ‘There are two types of BIO OIL available; vegetable-based and synthetic-based. You are recom- mended to use the synthetic-based type, because the vegetable-based oil has a maximum usage temperature of 80°C (176'F ). Because of this, the degradation of vegetable-based oil occurs more rapidly, and causes reduced service li Do not mix either type of BIO OIL with the original factory-filled mineral oil. In the case that you do use BIO OIL. it is required to flush the hydraulic system that was filled with mineral oil ‘two times. If you use BIO OIL, swing and propel parking brake performance will be reduced, because of the lower friction factor of BIO OIL compared to that of mineral oil. For further information about recommended Bio-degradable oil, please contact local dealer. 4-30MAINTENANCE, (RECOMMENDED OIL VISCOSITY AND ITS CAPACITY (SK4SR) ) © Fuel and oil Regardless of the ambient temperature, the types of oil used for the reduction units are given below: Travel reduction units +++" Engine Oil Classification API Service CD SAE30 ae Type of oil | Capacity [___Use (depending on the temperature) | Specified Unit Name | (When) [2-4 14° a2" 80" 68" 86108 | and grease | ‘‘changed)| -30° -20° -10° 0 10° 20° 30° 40°C | _lubricant son | (18.8gal.) = {_ 180. _VG68 sis) KWe8 ct { KoveL.co Pigreutioel | sydrautic | System 180 vees >| kwas | enuino ° = ‘ ser | st | OB | ese vem ewes Sewing [Automatic] reduction unit Grevlation see Hee | 23 | ow-30 ‘si, | Kusaei || Engine oil (1Sgal.) | | te _ (1.8gal.) _1_ with the specified. Upper rollers. 20ce X 2 EXTREME GEAR OIL_#90 ne ee | cap \ Lower rollers | Gear oil | 700c x 10 classification for ~ *servico GL-4” Front idlers 80ce X 2 Retachment_and] Earame eer dozer blade pin, | 20 places reese NEGT Swing cylinder | Greasy | °° Pl NozLthium pin | _ bce grease EP tbe Slewing rin 1 place enna ae —_|—t —| Cartridge Track adjuster | Grease | 2 places | | [sreodzo01 7 7 tT NL. NoZ Udi Slewing gear Grease | 25k Meares NOTE: Use of Bio-degradable Oils When you use Bio-degradable Oil (BIO OIL), refer to the following information. 1... Thre are two types of BIO OIL available; vegetable-based and synthetic-based. You are recom- ‘mended to use the synthetic-based type, because the vegetable-based oll has a maximum usage temperature of 80°C (176°F ). Because of this, the degradation of vegetable-based oil occurs more rapidly, and causes reduced service life. 2. Do not mix either type of BIO OIL with the original factory-filled mineral oil. In the case that you do use BIO OIL. it is required to flush the hydraulic system that was filled with mineral oi ‘two times. 3. Ifyou use BIO OIL, swing and propel parking brake performance will be reduced, because of the lower friction factor of BIO OIL compared to that of mineral oil. 4. For further information about recommended Bio-degradable oil, please contact local dealer. 4-40EXPENDABLE PARTS (SK40SR AND SK45SR) ) @ FILTERS AND ELEMENTS Replace expendable parts, such as filters and elements, during the periodical maintenance or be- fore the wear limit. The machine can be used economically if the expendable parts are changed MAINTENANCE, properly. Filter and Element List Items enclosed in parenthesis (__) are the parts to be changed at the same time. No. Device J PartNo. | Part [aty | Replacement Interval | After 50 hours (initial change) | Hydraulic oil tank) ,24489836F1 | turn filter ha ne © | Hyereutic oll t20) (ZD11G12500) | (O-ring) Ernie ome _ pen (from 2nd. change) | 2446Ra44F1 | Suction strainer 2 7 | ean ev hours Hydraulic oil tank) zoyygrz500) | (O-ring) [1 | Sian very 2000 hours | requir it Air cleaner | 119808-12520 | Element Perce pace enianeenS ue : | Blement imes or one year 7 | After 50 hours (initial change) @ | Engine cil filter | 129180-36151 | Cartridge ee wee _ — | Z |__| Every 250 hours (from 2nd. change) 12910-55650. ual filter ement (O-rin ver or © | Fuel fit | caar omnes) | Element (O-ring) | 1 | Every 500 hours | 171081-56910 | (102103-55520) | PH69B00003P1 | PHE9BO0004P | (zs13c16040) (2N13C16013) | 2A12P6AIE! (2412P641E2) (2412P641E3) Water separator Element “Side cutter (ReH) Side cutter (L+H) (Capscrew) (Nut) Bucket tooth (Locking pin) (Rubber lock) When required When required When requiredMAINTENANCE (FOLLOW THE PRECAUTIONS BELOW WHEN MOUNTING HOSES, PIPING, AND JOINTS: + Be careful not to damage the hoses, tubes, and joints and prevent foreign materials from en- tering in them. Perform dustproof treatment for each part upon necessity. + Clean the hoses, tubes, joints, and surroundings. Remove the cleaning solvent completely and dry them before installing + Do not use flawed or deteriorated O-rings. Ifa part is used which has the same dimensions but is made of different material and has a different hardness from the specified one, this may cause oil leakage or g @ INSTALLING HYDRAULIC HOSE AND PIPE JOINT The following two types of joint are used on the joint part of hose piping A. Metal joint Press and seal the opening of connector (tee, elbow) and hose. Disassemble and assemble it to protect the damage on the seat surface, B. O-ring seal joint O-ring is equipped with hose fitting which seals the oil pressure on the joint and pro- tects it from oil leakage. The tightening torque of the joint of each hydraulic hose is determined by the diame- ter of the hose fitting screws. In case abnor- mality of some kind is detected, the hose pipe joint should be repaired or replaced accord- ing to the following procedure even before the periodic inspection of the unit of hydrau- lic equipment. © O-RING 1, At reassembling, be sure to replace the O-ring with a new one. 2. Where the union is loosened and oil is leaked, never tighten it as it is. Install a new O-ring and check that the O-ring is securely fitted, and then tighten it 3. Never install a damaged and deterio- rated O-ring even if it is new one. The use of an O-ring other than a normal one contributes to oil leakage and re- duces the life of hydraulic equipment because the material and hardness dif- fer even if they are the same size. @ JOINT 1. Care must be exercised not to damage hose, pipe and O-ring groove face and seal face (dent, etc.) of hydraulic equip ment. The use of a damaged O-ring contributes to oil leakage ly shorten the life of the machine. Use only the specified parts. ‘A, Metal joint Seal face Elbow Ir J ro] SF 'eD Hose marae | Lor i / Seat (Hose side) see’ (Connector side) B. O-ring seal joint "7, Handle it using care to prevent entry 6 dust, ete. Fitting with foreign matters inside con- tributes to oil leakage, @ HOSE The hose should not be twisted and sharply bent for installation. Install hose paying particular attention not to twist and sharply bend it If the hose is twisted or sharply bent, the life of the hose is reducedMAINTENANCE (RELEASING THE INTERNAL PRESSURE OF HYDRAULIC OIL SYSTEM ) Release the internal pressure of hydraulic oil and hydraulic system before carrying out mainte- nance work such as hydraulic oil, return filter, suction strainer, cylinder. @ RELEASING THE INTERNAL PRESSURE [Posture of checking hydraulic oil OF HYDRAULIC OIL TANK PN © There is danger in the hydraulic tank because the inside is heated to higher temperature and pressurized. Carry out inspection and mainte- nance after stopping engine and cooling the hy- | drautic oil. | @ Releasing the internal pressure of hydraulic oil tank by carefully loosening the air breather plug gradually. Select the solid and level ground and place the machine in the posture as shown in the figure. 2. Stop the engine. Open the cover of hydraulic oil tank, and release the internal pressure of hy- draulic oil tank by loosening the air breather plug @) gradually. 4. Shift the right operating lever fully in front and rear, and right and left direc- tions to release the pressure in the hy- draulic circuitMAINTENANCE. (PRESSURIZING THE HYDRAULIC OIL TANK ) After inspection and maintenance after re- leasing the pressure of hydraulic oil tank. Make sure to pressurize the hydraulic oil tank. 1. Start the engine and keep low idling under the condition where the air breather plug @ on the hydraulic oil tank is open. 2. Extend each cylinder to the stroke end gradually to obtain the “Hydraulic Oil Tank Pressurization Posture” 3. Tighten plug & Tightening torque : 3.0 + 0.3 kgfem 4. Check that the tank is free from oil leak- age, and close the tank cover on the right side of operator's seat. Move the attachment and retract the cylinder rod, and the hydraulic oil tank is pres- surized NOTE: If the hydraulic oil tank is not pressurized, it contributes to the damage of hydraulic oil it, tank, Make sure to pressurize | Hydraulic oll tank pressurization posture Bucket cylinder. ‘Arm cylinder Boom cylinder ~ Swing cylinder | Blade cylinderMAINTENANCE, RELEASING AIR IN THE FUEL SYSTEM When replacing the fuel filter or when air enters the fuel system, remove the air by fol- lowing procedure described below. 1. Set the safety lever at “LOCK” position, and stop the engine. 2. Fill the tank up. 3. Check that the cock of fuel filter is set at “OPEN” position. 4. Set the throttle lever at “High idling” position. Turn starter on and repeat it two times for 15 seconds, then have the engine cranking During cranking, the fuel is fed and the fuel injector starts, and the engine starts immediately after air is released. Don't operate the starter for 15 seconds or more continuously. If it is necessary to crank for 15 seconds or more, stop cranking once, and start cranking again by setting it at “START” position after approx. 30 seconds. NOTE By moving the priming lever at the side of fuel injection pump up and down, the fuel is fed while the engine is stopped. Therefore, release the air beforehand, and the worktime is shortened.MAINTENANCE LUBRICATION AND MAINTENANCE INTERVALS ‘The table below indicates recommended lu- _ @ Symbols and their meanings brication, replacement, inspection andmain- tenance intervals of each device according to the calendar time and operation time shown, + by the hour meter. Perform inspection and maintenance ac- cording to the calendar time or operation time, whichever comes first. & Necessary regular inspection item. “Only initial inspection is per- formed. + Inspection and /or maintenance is See the inspection and maintenance proce- needed. dure mentioned below for details. ———_Interval when | Pf | Every Every | Every | JOil & Grease} Device —— opere-| Nek | 250% let ans mace] 20008 | Reptacina | Reses® tem ah_| 00h | 1000h perp T Checking | } the level ot 4-21 Engine oil 7 TF | Engine oi! }- Replasing Ca Enoine cit fier | Raplasno ote corwiae | 4-20 Woter separator | EIREKING/ |) | Element | 4-15, al a poe ms | Cleaning | ° 4-30 Fuel filter a Element |—— Replacing | Lo 4-33 : Grucking7 |G | a ae Cleaning Air leaner element [S828 ft Element Replacing | O I i 413 w a | Checking 7 I be a ~ 7 2 the level one Tap water | 42" § | Radiator coolant Af ep wat & Replacing | | | 4-35 _—__| | hi checking 42 Fan belt i _ Adjusting 431 Radar Fi 66 Ol) craing | 414 Radiator cap Cleaning ate Radiator hore Checking 431 Checking the color of exhaust gas 422 \ ~~ | Checking/ || | y Votw corome — SGontng | [ [ae Compression Checking/ pressure Adjusting L aoeMAINTENANCE. | Pre- ‘Every | Every | Interval When | ] | Toi a crease yy Device| |orere 50h months mers} 2000h | (Replacing |Peeme Item auirea| | part) ‘Checking/ | | 4-36 & | injection nozsle | Checking | 1 au g au | | st t— “© | Stater and Checking/ | 4-36 alternator Adjusting | ca Checking i i Pe 2 Li n Be | tenk Draining water | aoa a | and deposits Lo \ 1 T Checking j i Fy Hydraulic | the leve an Hydrate | oil 1 1 oi = Replacin | 437 B |Hydrautic| _| Revista || aes & | tank [Suction | Cleening” : 3 strainer _| Replacing L {| - £38 8 i t g Betws Replecng } Element | 4-34 3 iter Pp | . aa & | Checking oi leakage and _ E | demese of pipings and hoses 7 : Checking oil leakage and _ damage of eyli 7 Inline filter | Cleaning | ° 4-40 eg sewingring | Gresina | let rene | 432 es 7th T a 1 NGI No2 SE | Grease in the Replacing © | Lithium base } 4-39 areate bath | | 408. grease 7 T Ter iteaval Feccsieny ieplacing | | O-| Engine oi! | 4-39 lubrication oil Replacing | | ‘Kcciesn]_—_ | Er y_ | Checking ot leakage and | r S| damage of the rollers 9 a 4 23, 2 a = & | Checking ol leakage and ios © | damage of the idlers o _ & | checking woar of the sprockets O 4-23 gy ee Checking wear of the rubber shoe | ° i 4-23 Track tension Adjusting ° I 4-28 Pages ‘Attachment pins | Greasing oF Grease | 4-32 5 Replacing | ' 416 & | aucrer i + - 2 [aaa oe i 419 5 | mount cap t | checking wear and damage of the] 5, 1 a7 & | tooth and side cutters L 418 Checking damage of the capscrew 7 preventing pins from coming off o t mie 4-1MAINTENANCE, terval when | Pe Bey EY] Toit & roan] Device — ro ton | rmonans months 200" | Peatacing [Psst item fares) 2" Som renter a) Checking the fluid 1 level 426 attory t = . Measuring the specifie| 42 ue gravity s EB | Checking damage of the electrical 23 [urns 2S | Checking the function of the gauges, switches and lamps ea Checking the funetion of the r | monitor pane! o bed an Checking abnormal defermation and | _ en | damage of the machine exterior 2 | SG | Checking looseness and missing of 1 E | the capserews end nuts 8 Checking 7 Wiper washer fluid | Cheeking ] 420 4-12MAINTENANCE: WHEN REQUIRED ‘Thoroughly read and understand the section SAFETY OPERATION of this manual be- fore operating or servicing the machine. @ CHECKING THE AIR CLEANER ELEMENT Pe Wear protective glasses or goggles when using compressed air. NOTE: Stop the engine before inspecting or cleaning the air cleaner element. This will prevent the engine from getting damaged due to dust. Cleaning ----"- A warning appears on the Monitor panel Replacement ------ After 6 times cleanings or once a year @ CLEANING THE AIR CLEANER ELEMENT 1. Removing the two clamps @ and pull out the air cleaner element ©), Clean the inside of the element body. Blow compressed air (7kgf/cm’ or below) along the pleats of the element from the inside of the element. @ ATTACHING THE AIR CLEANER ELEMENT 1. Insert a new air cleaner element (D into the air cleaner housing, 2. Fix the element @) by the two clamps @ on the cover.MAINTENANCE. @ CLEANING AND REPLACING THE RADIATOR CAP Pe Use extreme caution when removing the radiator cap. When the radiator is hot, the coolant is under pressure. Never remove the radiator cap when radiator is hot, always allow the radiator to cool down. 1. Wait until the cap has cooled down enough to where it can slowly. After confirm- ing that pressure has been released, push the cap down and hold it down while turning to remove. 2. Check the cap for damage or adhesion of foreign material. Clean the cap with a clean cloth or replace as required. 3. Install the cap, @ CLEANING THE RADIATOR FIN AND OIL COOLER Pear Wear safety goggles when using compressed ai NOTE: + High-pressure air/tap water can damage the fins ; therefore, spray with the nozzle at least 500 mm from the fins. + Cleaning interval ----- Every 500 hours 4-44MAINTENANCE @ DRAINING WATER FROM THE WATER SEPARATOR The water separator isolates water that mixes in with the fuel. The case is equipped with a float. When water accumulates, the float rises When the float rises to the level line, drain the water. Clean up all spilt fuol to avoid a fi Loosen ring @ and remove case ®), then dis- charge the accumulated water in reservoir. NOTE: Care must be exercised not to miss the red float ©) and spring ©. 1, Remove element © and wash and clean it with light oil Replace o-ring © with a new one. 3. Install element @ on the body of water separator. 4. Fit O-ring © on case ©, and secure it with ring @. 5. Direct the cock @ downward to open. After draindown, make sure to release air in the fuel system seeing Page 4-9 strictly prohibited to wash and clean it gasoline. 4-18MAINTENANCE @ REPLACING THE BUCKET Change the bucket on a flat place. When working ‘together with someone else, exercise safety by giv- | in sige or site fo eth ter. en sorting the pet the in Ns, neve [not You gers nt tin he | | @ REMOVING THE BUCKET 1. Select a flat surface and stabilize the bucket on the ground. 2, Move the O-rings (of the pin from its | _——--——~ a normal position to the bucket bosses. 7 . a] / 3. Remove the spring lock rings (2) and ho lock pins @) and pull out the pins @) and os S ®© ; then remove the bucket ). Dust seals are inserted at both the edges of the pin holes of the arm (7) and bucket link @). Do not damage them. @ INSTALLING THE BUCKET 1, Clean each pin and pin hole and grease sufficiently, Bucket boss 2. Move the bucket cylinder to match the pin holes of the bucket ©) and bucket link ® with each other ; then insert the pin @ 3. Lift the boom up to raise the bucket slightly from the ground. 4. Move the arm @) to match the pin holes of the bucket © and arm () with each other ; then insert the pin ©. 5. Insert the lock pin @ and attach the spring lock rings @). Fit the O-ring into the normal position. 6. Apply grease to the bucket link from the grease nipples sufficiently, 4-16@ CHECKING THE TOOTH POINTS ree Put the bucket with a block to replace the tooth points and side cutters. Check for wear and looseness of the bucket tooth points. Tooth point life cannot be de- termined only by the number of operating hour: operating conditions must also be con- sidered. NAME OF PARTS @ Adapter nose @ Rubber lock pin @ Tooth point ® Locking pin @ REPLACING THE TOOTH POINTS Replace the bucket tooth in the following cases. * When little holes appear on the tooth point. + When the edge lines of the tooth point are worn 1. Using a hammer and punching tool, ham- mer out the locking pin. Be careful not to damage the rubber lock 2. Inspect the locking pin @ and rubber lock @), Replace them if the locking pin @) is too short or the rubber lock @) is in poor condition, 3. Clean the surface of the adapter nose @ with a putty knife to remove the ad- hered soil 4. Fit the tooth point @) onto the adapter nose ). ©. Push the rubber lock pin @) in the hole of the adapter nose (P) 6. Drive the locking pin @ until it is aligned with the point face. MAINTENANCE Danae te Punching tool Tooth pointMAINTENANCE @ REPLACING THE SIDE CUTTERS 1, Completely remove all sand and soil ad- hering around the capscrews com- pletely. Use an acetylene torch to cut off the capscrews, then remove the side cutter. 2. Clean the mounting face and install a new side cutter. When replacing the side cutter, replace the capscrews and nuts with new ones. Tightening torque ; 29 + 2kgfem 3. After tightening the nuts, spot-weld them. @ TURNING OVER THE BUCKET Reverse the backhoe bucket; then install onto the machine in order to use the machine as a face shovel 1, Lower the bucket onto level ground to stabilize Remove the spring lock rings, bucket, pins and link pins. Pull out the bucket pin @ and link pin @. 3, Lift up the arm slightly and reverse the oO bucket; then lower the arm again. The = |___ secre seerssreeceeeereeese) pin hole positions are changed. 4. Clean the pins and pin holes of every part and apply a sufficient amount of grease. 5. Align the pin holes with each other, then insert the pins. Install the spring rings and pins. Pe Bucket face shoveling is opposite to that of ackhoeing. Be careful not to confuse the onl tions.@ ADJUSTING THE BUCKET MOUNT GAP. ree Set the safety lever to the lock position and stop the engine when adjusting the clearance of the bucket. Per If the clearance of the bucket is not properly ad- justed, galling may occur on the contact faces of the bucket and arm, resulting in abnormal noise and damage of the shaft and O-ring. Standard clearance of the bucket 1.0 mm or less 4 1. Lower the bucket onto the ground to sta- bilize, as shown in the right figure. 2. Move the O-ring @ from its normal posi- tion to the bucket boss. 3. Slightly rotate in the left direction to slightly push the arm end to the bucket left side (where no clearance adjusting mechanism is equipped) 4. Set the safety lever to the lock position; then stop the engine. 5. Measure the clearance A) between the arm and bucket boss. If the measurement value is 1.0 mm or more, adjust the clear- ance. 6. Ten shims @ (1.0 mm) on the average are inserted in the three capscrews @) at the clearance adjusting part. Loosen every capscrews and remove shims correspond- ing the clearance. 7. Tighten the capscrews @ equally to the specified tightening torque, Tightening torque : 6kgf*m 8. Return the O-ring @ to the normal posi- tion. Bucket bushin Bucket bo: Before adjustment MAINTENANCE Bucket clearance adjusting mechanism 4-19MAINTENANCE @ CHECKING AND REPLACING THE WIPER BLADE Inspect the wiper blade. Replace if it is worn Wiperblade or damaged \ © REFILLING WASHER FLUID (CAB SPEC.) NOTE: If the switch is operated when th washer fluid, the washer tank motor may become damaged. The washer tank is installed behind the op- erator's seat, on the right hand side 11, Check the washer fluid level in the washer tank. 2. If the washer fluid level is low, remove the cap and refill with washer fluid for automobiles or tap water.MAINTENANCE, (@-HOUR (DAILY) INSPECTION AND MAINTENANCE Thoroughly read and understand the section, SAFETY OPERATION of this manual before op- erating or sevicing the machine. @ CHECKING THE COOLANT LEVEL 1. The reserve tank for the coolant is lo- cated on the right rear side of the ma- chine 2. The coolant level should be between FULL and LOW in the reserve tank ©. If the coolant is LOW, remove the reserve tank cap and refill with coolant. Use soft water such as tap water which not generate incrustaion, as coolant. 3. If the reserve tank is empty, refill with coolant from the radiator side. At this time, loosen the radiator cap slowly. After confirming that the pressure has been released, push the cap down and hold it down while turning to remove. Particularly never open the cap immediately after operation. Otherwise hot water sprays out and is, dangerous. @ CHECKING THE ENGINE OIL LEVEL NOTE: © Level the machine before performing the inspection. © Avoid overfilling the oil pan. Excessive il may cause the engine to malfunction. © Before starting the engine, check the en- gine cil level. © After operating the machine, check the ‘engine oil level about 30 minutes after the engine stops. 1. Unlock the hood lock and open the en- gine guard. 2. Pull out the level gauge @, and com- pletely wipe off the oil adhering to it. If the oil level is between the H and L, the level is sufficient. If oil is extremely contaminated or deteriorated, change it regardless of the periodical change pe- riod. 3. If the oil level is low, refill with engine oil from the filler cap ©. After fill-up, check the oil level again. 4. Wipe off the filler cap © completely; then attach 5. Close and lock the guardMAINTENANCE. @ CHECKING THE FAN BELT Check the fan belt for insufficient tension, wear, and damage. If the belt tension is in- sufficient, this may cause battery charge failure, overheating of the engine, or abnor- mal belt wear. If too much tension is applied to the belt, the bearings or belt may become damaged. See the section, MAINTENANCE, (EVERY 250 HOURS) for details on the in- spection and adjustment procedure for the belt. @ CHECKING THE COLOR OF EXHAUST GAS After the engine has fully warmed up, check the color of exhaust gas. * Colorless or faint blue -- Good * Black --- Bad, indicates incomplete com- bustion + White -- Bad, indicates oil getting into the combustion chamber ‘Supplementary explanation : Please note that the exhaust gas which is really colorless or faint blue will look white due to the coldness of winter @ CHECKING THE HYDRAULIC OIL LEVEL 1. The hydraulic oil tank is located on the right side of the machine, 2, Set the machine to the hydraulic oil level check stance (as shown in the right fig- ure) on the level and solid ground; then stop the engine, 3, Check the oil level with the level gauge @ on the side face of the hydraulic tank, If the gauge indicates that the oil level is between H and L, oil is sufficient, The oil level changes according to the oil temperature, Thus, check the oil level according to the guideline below. + Before operation Around L level [ The oil temperature is 10-30 °C (80-86 *F). } + During normal operation Around H level [ The oil temperature is 50-80 °C (122-176 °F). Hydraulic oil level check posture Y ) draulic \\tank cover Level gauge @@ CHECKING THE FUEL LEVEL PAN Pee + A fire or explosion may occur if a mixed fuel such as gasoline and alcohol is used. * Do not allow contamination or water to mix into the fuel when adding fuel. Place the machine on level ground; then check the fuel level with the indication on the monitor panel shown in the right figure. If the fuel level is low, use the starter key to remove the cap ©. 2. Supply fuel through lubricating port The float comes up to the port when the level reaches to full. Stop supplying imme- diately after the float (2) comes up. Fuel tank capacity : 602 3. If foreign matter such as dust, ete. is caught on the strainer @ fit it again on the filter port after cleaning with light oil or blowing with air gun. 4. After supplying, tighten filler cap se- curely. Lock the key and finish the work. NOTE: Refill with fuel at the end of operation each day. (This decreases the air in the tank, thus, preventing the formation of water drops after cooling.) @ CHECKING OIL LEAKAGE AND WEAR AND LOOSENESS OF THE CAPSCREW IN THE LOWER FRAME ASSEMBLY 1. Check the upper roller, lower roller, idlers, and travel reduction unit for any oil leakage. 2. Check the upper roller, lower roller, rubber shoes, and sprocket surface for ‘any abnormal wear, and the mounting capscrew for looseness. 3. Operate the lower frame assembly slowly in a wide area to check for abnormal noise, 4, If any abnormal wear, abnormal noise, or oil leakage is discovered, contact your KOBELCO distributor. @ CHECKING THE FUNCTION OF THE GAUGES, SWITCHES, LAMPS AND MONITOR PANEL After warm-up operation, check the opera- tion conditions of the switches. If any mal- functions are discovered, contact your KOBELCO distributor. GF MAINTENANCE. OF oon, mB ssn F ADrUEL veer e ‘ KEY 2MAINTENANCE 50-HOUR (WEEKLY) INSPECTION AND MAINTENANCE ) Thoroughly read and understand the section, SAFETY OPERATION of this manual before op- erating or servicing the machine. Perform together with 8-hour (daily) inspection and maintenance. @ DRAINING WATER AND DEPOSITS FROM THE FUEL TANK PN Always stop the engine when adding fuel Pee Water is deposited at night, so draining be- fore starting the engine is effective 1. Slew the machine so that the drain plug @ under the fuel tank is between the right and left crawlers. 2. Put the drain fuel container under the drain plug ®, 3. Loosen drain plug @ slowly. Drain the accumulated deposits and the contami- nated water together with fuel. At this time, use care to prevent splash- ing of fuel. 4. After clear fuel is discharged, tighten the drain plug @ —_____—__] NOTE: After tightening drain plug, check that it is free from possible fuel leakage.MAINTENANCE, ADJUSTING THE CRAWLER TENSION * ADJUST EVERY 50 HOURS (AFTER 30 HOURS THE FIRST TIME) Proper adjustment of the rubber crawler tension is essential for extended service life of the crawler and the travel motor. Joint mark M NOTE: Clean the machine and completely remove any soil adhering to the crawler before in- ‘specting or greasing. 1, Wash the area around the crawler, then place the machine on the level ground. 2. Lift the machine body by means of the attachment and the dozer blade. 3, Measure the clearance “A” between the bottom of the frame and the tread at the center of the frame length, Boone Dimension CLEARANCE “A") 60~ 70mm (Rubber crawler) (SKADSR/A5SR)) 449 ~ 120mm (Steel crawler) _ Pen | The rubber erawler have a joint (marked “M"). | Bring the joint at the top center of the frame. if | this is not does, the shoe will be too loose, and re- | adjusting will be necessary. Rubber Steel i crawler ~—}—* crawler Lower—Il _— Crawler roller ans © TIGHTENING THE TRACK TENSION PGS In case grease does not come out even if the grease nipple is loosened, there is something unusual. Contact your KOBELCO distributor for repair. Never disassemble the unit by yourself as it is dangerous. 1. Tension can be applied to the track link by greasing the grease nipple @ of the track spring on the lower frame with a grease gun. 2. Travel forward and backward to equal- ize the pressure. Check the tension of the right and left track links equalized Check the tension of the track link again. Adjust as required,MAINTENANCE @ LOOSENING THE TRACK TENSION Because high pressure is applied to the grease cyl- inder, grease may spout out when the grease nip- ple is loosened, causing a serious injury. Keep your face away from the grease nipple and loosen it gradually. The grease nipple may spring out be- ‘cause of the internal high-pressure grease. Do not Joosen the grease nipple more than one turn. 1. To discharge the grease, rotate part ¢ of the grease nipple (1) not more than one turn, 2. If grease does not discharge suffi- ciently, lift up the crawler to be loos- ened and rotate the track slightly, 3. When the track tension is properly ad- justed, tighten the grease nipple (D. Tightening torque : 6 + 1 kgf+m @ CHECKING THE BATTERY FLUID LEVEL PES + Wear protective glasses, a long-sleeve shirt, and gloves when handling the battery. + The battery generates flammable hydrogen gas which may explode. Keep fire and open flames away from the battery. + Battery fluid is hazardous liquid. Do not let battery fluid contact your eyes or skin. If this should occur, rinse them thoroughly with clean water and consult a physician immediately 1, The indicator shows the state of charge of the battery and fluid level. DO NOT use solvents like gasoline and thinner to clean off the indicator or the indicator surface may be cracked or become clouded. 2. Remove the fluid plug @. If the battery fluid level is not up to the specified level (10- 15mm above the plate), add dis- tilled water until it reaches the specified level 3. Clean the air hole of the fluid plug @ and tighten the fluid plug firmly. ‘Supplementary explanation ; Clean the battery terminals and apply grease or Iu- bricant rust-preventive spray. Good Refilling required Indicator indications | Blue White ‘Red @) Charging required Cr (Lower limit) ry (Upeer limit) Plate (Electrode)MAINTENANCE @ MEASURING THE BATTERY FLUID SPECIFIC ue GRAVITY Battery specific grevity The specific gravity of battery fluid changes according to fluid temperature. Keep its |e specific gravity within the range shown in |*" the right figure, If the specific gravity is |:$2) below the lower limit (small value), charge bao, the battery. I + Specific gravity of battery fluid : 1.28 (at fluid temperature 20°C) —_Bettery anemones kemperature Battery specific gravity NOTE: Do not measure the battery fluid’s specific gravity immediately after operation. Measure it whon its temperature becomes equal to the ambient temperature. tL __ @ PRECAUTION FOR THE BATTERY IN COLD REGIONS 1. Be aware of the battery temperature. If the temperature should go down, the battery may freeze and its capacity may drop extremely. 2. After battery fluid has been added or, when the specific gravity is very low, charge the battery immediately,MAINTENANCE 260 HOUR (3-MONTH) INSPECTION AND MAINTENANCE } Perform together with 8-hour, 50-hour and 120-hour inspection and maintenance. Thoroughly read and understand the section SAFETY OPERATION of this manual before op- erating or servicing the machine © REPLACING ENGINE OIL PG Each unit will be hot immediately after the ma- chine has been operated. Change the oil after the temperature has de- creased. + Check the waste oil. If there are metal chips or powder mixed in the oit, contact your KOBELCO distributor. NOTE + Replace the engine oil after the initial 50 hours of operation + When replacing the engine oil, replace the engine oil filter as we 1. Loosen the four capscrews on the cover under the engine. 2. Place a container under the engine into which the oil will be drained. 3. Remove the drain plug ® slowly and drain the oil into the container. Be careful not to pour oil on yourself 4. Tighten the drain plug ® securely. 5. Remove the oil filler cap © and fill with the specified engine oil + Oil volume to be replaced SKA0SR "4,70 (1.2gal) SK4BSR 582 (1.5 gal) See the section (page 4-3, 4-4) for RECOMMENDED OIL VISCOSITY AND CAPACITY, 6. Check the oil level with the oil level gauge G,, then start the engine. Idle the engine for few minutes, then stop it Check the oil level after about 10 min- $$ utes. If the oil is low, fill with the speci- fied engine oil. 7. Install the under cover in its proper place,MAINTENANCE, @ REPLACING THE ENGINE OIL FILTER PW Each unit will be hot immediately after the ma- chine has been operated. Change the filter after the temperature has fallen. ‘+ When replacing the engine oil filter, re- place the engine oil as well. NOTE. + The oil filter cannot be reused because it is a cartridge type. + Replace the return filter after the initial 50 hours of operation. 1. Open the engine guard @ and radiator cover @) of the machine. nore: * Always stop the engine when opening the + When opening the covers, open engine quard (D then open radiator cover @. + When closing the cover, secure the 2 latches of radiator cover @ then close tho engine guard ©. 2. Use the filter wrench @ to remove the oil filter and replace it with @ new one. 3. Clean the filter base. Apply clean en- gine oil to the new oil filter seal face. Tighten the filter two-thirds rotation. 4. Start the engine and idle the engine for a few minutes. Check the filter mount- ing face for any oil leakage, Engine oil filter ~ 7h | CG ae I) SpMAINTENANCE @ CLEANING THE ENGINE FUEL FILTER PW Each unit will be hot immediately after the ma- chine has been operated. Change the filter after the temperature has fallen. Pee Clean up all spilt fuel to aboid a fir Prepare oil container 1, Stop the engine, and open the engine guard. 2. Set the cock of fuel filter at “CLOSE” position, And remove the retaining ring ®, and take cup case ©) and element ©, and spring @ out 3. Drain dust and water accumulated on the bottom of cup case © of fuel filter in the prepared oil container, and clean it. 4. Wash and clean the element © with light oil, and blow off the compressed air, 2-3kgf/om? from the inside to re- move dust. NOTE: It is strictly prohibited to wash and clean element with gasoline. 5. Before fitting fuel filter in the reverse procedure shown in the item @), replace O-rings © and ) on the body seal sur- face. 6. Release air referring to article “Releasing air in the fuel system” in Page 4-9. 7. Check that the filter fitting section is free from possible fuel leakage, while running engine at idling for several minutes after starting engine. 8. Close the engine guard@ CHECKING THE FAN BELT TENSION The engine is provided with an alternator belt. Check this belt for wear, damage, and insufficient tension to maintain high per- formance and long life. Adjust or replace as required Press the center of the belt with your thumb to check the belt tension. If deflection is about 8-10 mm, the adjustment is proper, ® ADJUSTING THE FAN BELT TENSION . Loosen the mounting capscrew @) and alternator bracket capscrew @) to ad- just the tension of the belt. 2. Insert a wrench handle to move the al- ternator. Adjust the belt to the speci- fied tension. 3. Tighten the capscrews ® and @. 4. After adjustment, operate the engine at low idle for 5 minutes ; then check the belt tension again. © CHECKING THE RADIATOR HOSE Replacing the hoses before any problems ‘occur is both economical and good mainte- nance practice This will reduce costs and minimize unex- pected interruption of operation. Immediately replace the hose if it is cracked, worn, or if water is leaking from it. This will prevent serious problems, such as the engine overheating, 1. Check the hoses for water leakage due to loose clamps or cracked and worn hoses. 2. Tighten any loose clamps and replace any cracked or worn hoses following the procedure below. @ REPLACING THE RADIATOR HOSE 1. Loosen the radiator cap slowly. Confirm that pressure has been released. Push the cap down and hold it down while turning to remove. Drain the coolant from the hose to be replaced until the coolant level becomes low. 3. Loosen the hose clamp and disconnect the damaged hose ; then replace with a new one. MAINTENANCE Kk YJ || ay Wrench handle Use extreme caution when removing the radiator cap. When the radiator is hot, the coolant is under pressure. Never remove the radiator cap when radiator is hot, always allow the radiator to cool down.MAINTENANCE © GREASING THE ATTACHMENT PINS Set the machine to the greasing posture shown in the right figure, and wipe off all of the grease nipples, before greasing The grease gun is set in the tool box. NOTE: Our request to the user when apply grease In ordinary operation, apply grease every 250 hours of operation or every six months, but under special conditions, observe the fol- lowing lubrication intervals ‘When operating the machine with a spe- cial attachment, apply grease every day before starting work. For underwater digging operation, apply ‘grease to the areas to be immersed in water overy day before and after work. Where the machine is rested for more than one month, apply grease before work. No. Greasing points 1 [Blade cylinder rod pin 2_| Blade cylinder foot pin Dozer foot pins Boom foot pin Boom cylinder foot pin | Boom cylinder rod pin _ Arm cylinder foot pin ‘Arm cylinder rod pin Boom/Arm connecting pin 10_| Bucket cylinder foot pin 11 | Bucket cylinder rod pin 12. | Link pin 13 | Link pin 14 | Bucket link pin 16 | Arm/Bucket connecting pin 16 | Swing cylinder foot pin 17_| Swing cylinder rod pin | 18 | Swing bracket/frame connecting pin ole|.jalal»|e © GREASING THE SLEWING RING The slewing ring is provided with one grease nipple. Clean the grease nipple. Rotate the upper frame assembly in 90° intervals in order to grease all four portions. Greasing posture eeMAINTENANCE (B00 HOUR (6-MONTH) INSPECTION AND MAINTENANCE, Perform together with 8 to 250-hour inspection and maintenance Thoroughly read and understand the section, SAFETY OPERATION of this manual before op- erating or servicing the machine. @ REPLACING THE FUEL FILTER Pee | Spilt oil may cause a fire. Wipe off any spilt oil completely. 1. Open the engine guard and radiator cover of the machine NOTE: @ Always stop the engine when opening the covers. © When opening the covers, open engine guard (D then open radiator cover Q). © When closing the cover, secure the 2 latches of radiator cover @) then close the engine guard. nw Put fuel container under the fuel filter. 3. Set the cock @ of fuel filter at “CLOSE position. And remove the retaining ring B, and take the element © out of the cup case ©). At this time, care must be exercised not to miss the spring which is placed in the cup case. 4. Replace element © and O-ring with new ones. 5. Install them in the reverse procedure shown in the item 3 6. Release air referring to article “Releasing air in the fuel system” in Page 4-9. 7. Check that the filter fitting section is free from possible fuel leakage, while running engine at idling for several minutes after starting engine. 8. Close the engine guard. ——MAINTENANCE @ REPLACING THE HYDRAULIC RETURN FILTER The return filter keeps the hydraulic oil clean by removing any foreign material that may be in the oil. This will prevent the hy- draulic equipment from becoming damaged and prolong the machine's life. Thus, since the return filter is @ very important part, handle it with due care. PGs ‘© Bofore servicing the hydraulic system, release | the pressure in the hydraulic oil tank. | ‘© The oil temperature is very hot immediately after the machine has been operated. Replace the return filter after the oil tempera- ture has fallen. NOTE: Replace the return filter after the initial 50 hours of operation. 1. Place the machine on the level ground, lower the bucket to the ground and stop the engine. 2, Remove the cover on the hydraulic tank, 3. Slowly loosen plug @) and release the pressure from the hydraulic tank. 4, Remove the capscrew @), spring washer @, and cover ©) on the upper face of the tank. 5. Remove the spring @), valve (2, and ele- ment @ out of the tank. 6. Check the O-ring @ on the cover mount- ing face and replace if it is worn or damaged. 7. Install the elements according to the above-mentioned steps 4 and 5 in re- verse. 8. Install the hydraulic tank cover in its proper place. @ INSPECTION AND ADJUSTMENT OF INJECTION PRESSURE AND SPRAYING CONDITIONS OF FUEL INJECTION NOZZLE Contact your KOBELCO distributor for in- spection and adjustment.MAINTENANCE (000-HOUR (12-MONTH) INSPECTION AND MAINTENANCE, Perform together with 8 to 500-hour inspection and maintenance. ‘Thoroughly read and understand the section, SAFETY OPERATION of this manual before op- erating or servicing the machine. @ REPLACING COOLANT PGs Keep the coolant away from fire and open flame: it is flammable. Use clean soft water such as tap water which will not generate deposits for coolant, Water may cause corrosion, depending on the engine operation temperature. Use cool- ant which contains 30% or more of LONG LIFE COOLANT to prevent the cooling sys- tem from corroding or freezing The ratio of LONG LIFE COOLANT to be added to the cooling system should conform with the expected lowest ambient tempera- ture, When the machine is shipped from the factory, coolant which contains LONG LIFE COOLANT is used as shown below. Freezing resistance | LONG LIFE COOLANT temperture (mixing ratio) “450 (59 F) 30% "C(292'F) 6 NOTE: Replace the coolant if it becomes contami- rated or bubbles appear. rere Use extreme caution whon removing the radiator cap. When the radiator is hot, the coolant is under pressure, Never remove the radiator cap when radiator is hot, always allow the radiator to cool down, 1. Loosen the radiator cap slowly. After confirming that the pressure has been released, push the cap down and hold it down while turning to remove. 2. Open the radiator drain cock and drain the coolant. Close the drain cock and fill with tap water (hot water). Operate the engine speed slightly faster than idling to raise the coolant temperature to 80°C (176 °F) or more. Then, operate the engine for approximately 10 min- utes. Drain cock 3. Stop the engine and open the radiator drain cock. Flush the radiator with tap water until the water draining is clean . Close the radiator drain cock. Fill the radiator with tap water in which LONG LIFE COOLANT has been mixed (30% or more) up to the radiator cap. Rotate the engine for a while to fully release air from the cooling system. 5. Stop the engine. Check the coolant level (the reserve tank water level should be between FULL and LOW). Fill with tap water if it is low.MAINTENANCE @ INSPECTION AND ADJUSTMENT OF ENGINE VALVE CLEARANCE Contact your KOBELCO distributor for in- spection and adjustment ‘Adjustment value 0.15 ~ 0.25 mm (at 20°C) 0.15 ~ 0.25 mm (at 20°C) Intake valve Exhaust valve @ INSPECTION OF ENGINE COMPRESSION PRESSURE Contact your KOBELCO distributor for in- spection. @ INSPECTION AND CLEANING OF ENGINE STARTER MOTOR AND ALTERNATOR It is necessary to disassemble them to in- spect and clean Contact your KOBELCO distributor for in- spection and cleaning, @ INSPECTION AND ADJUSTMENT OF ENGINE FUEL INJECTION TIMING Contact your KOBELCO distributor for in- spection and adjustment ‘SK40SR Injection timing : (b, T, D, C) 14+ 1° Compression pressure 33 + 1 kof /crl at 250 rpm —__ SK45SR, Injection timing : (b, T, D, C) 12= 1°MAINTENANCE @ REPLACING THE HYDRAULIC OIL Hydraulic oil level check posture The hydraulic oil tank contains high-temperature and high-pressure oil. Stop the engine before re- moving the cover. Release the pressure from the tank. Loosen air breather of hydraulic oil tank to re- I essure. * Oil volume to be replaced SK40SR/SK45SR : 60 (15.8 gal) 1. Set the machine to the hydraulic oil level check posture. See page 4-22 for hy- draulic oil level check. 2. Remove the cover @) on the hydraulic tank. 3. To release the pressure from the hy- draulic tank loosen the plug @) slowly. 4, Remove the capscrew @), spring washer @, and cover ©) on the upper face of the hydraulic tank, 5. By using the oiling pump, drain hydrau- lic oil to the container. 6. Remove the drain plug © on the lower side of the hydraulic oil tank and the drain oil completely. 7. Clean and tighten the drain plug ©) (HEX 27 mm) 8. Fill the hydraulic oil tank with the speci- fied hydraulic oil 9. Install the cover ©), and retighten the capscrews @), spring washer @. Tightening torque : 2.4 + 0.2 kgfem NOTE: © After inspection and maintenance after releasing the internal pressure of hydrau- lic oil tank, make sure to pressurize the tank before starting operation. For hydraulic tank pressurization proce- dure, see Page 4-8. © Dispose of waste oil as industrial waste according to your country’s environment protection law.MAINTENANCE, @ CLEANING THE SUCTION STRAINER ‘The suction strainer, prevents foreign mate- rials from entering into the pump. Thus, since the strainer is a very important part, handle it with due care. Clean it when replacing the hydraulic oil NOTE: After inspection and maintenance after re leasing the internal pressure of hydraulic oit tank. Make sure to pressurize the tank fore starting operation. be- For hydraulic tank pressurization procedure, soe Page 4-8. 1. loosen clip @ of hydraulic oil piping and disconnect hose @) from the hydraulic oll tank, Then loosen capscrew @) and lock washer strainer ©) out ‘and take suction 2. Remove dust, etc. that adheres on the suction strainer, and wash and clean with light oil or wash oil. Replace the O-ring © with new one. Install suction strainer ©) in the reverse procedure of that shown in the item 1 Tightening torque : Suction strainer 124 1kgfem Tightening torque : Capscrew 47 +05 kgfem 5. Lubricate the specified quantity of hy- draulic oil through filler port. Check that the indicator of level gauge is be- tween “H” and “L”. Make sure to lubri- cate hydraulic oil over the level “H” For oil in use, see Pages 4-3 and 4-4.MAINTENANCE, 2000-HOUR INSPECTION AND MAINTENANCE ) Perform together with 8 to 1000 hour inspection and maintenance. Thoroughly read and understand the section, SAFETY OPERATION of thus manual before op- erating or servicing the machine. @ REPLACING ENGINE OIL IN THE TRAVEL REDUCTION UNIT | The oil temperature is very hot immediately after | the machine has been operated. Replace engine oil after the oil temperature has fallen. * Oil volume to be replaced SK40SR : 0.70 (0.2 gal) x 2 SK4BSR : 1.10 (0.3gal) x 2 NOTE: Replace oil after the first 500 hours of op- eration 1, Place the machine on the level ground. 2. Rotate the motor until the drain plug @ in the lowest position 3. Remove the drain plug @ and level plug @ and drain the oil into the container. 4. After draining oil completely, clean the drain plug (@, seal it with tape and retighten. 5. Fill engine oil through the level plug @) till engine oil comes out of the screwed part of the level plug. 6. Seal it with tape and retighten. © Check the waste oil. If there are metal chips or powder mixed in the oil, contact your KOBELCO distributor. © Dispose of waste oil as industrial waste according to your country’s environment Protection law. NOTE @ GREASE REPLACEMENT OF SLEWING GREASE BATH To replace the slewing grease bath, it is nec- essary to disassemble the upper frame. Contact your KOBELCO distributor to do itMAINTENANCE @ CLEANING LINE FILTER OF PILOT VALVE © Cleaning inline filter The P ports of right and left pilot valves and solenoid valve are equipped with adapter with filter. Dust, etc. that ad- heres on the filter and enters in the valve may cause trouble. ‘Take out and clean filter. «Stop the engine after shifting the safety lever to “LOCK” in parking position. Remove connector connected to P port of pilot valve mounted under the opera- tion stand. After removing, add blank plugs to the lubricating holes of valve and hose. Clean connector with light oil or blow air out. . After cleaning, install it in right and left of pilot valve. Subsequently clean inline filter of solenoid valve. 5. After disconnecting hose, remove inline filter assy from the tee connected to the solenoid valve. Add blank plugs to lubri- cating holes of the removed tee and hose. Wash and clean strainer with light oil or blow air out Then, check O-ring for possible dam- age, and replace the damaged O-ring with new one. Fit strainer to nipple with flat driver first, and then install it on the inline fil- ter case. Remove blank plugs, and attach inline filter assy to tee of solenoid valve. Then connect hose. | Line filter Hydraulic | pump = “Inline filter Case Strainer Label 1 [2 3CHAPTER 5. TRANSPORTATION (TRANSPORTATION ] WHEN PREPARII © Before preparing to transport the excavator ref height, width, traveling speed, ground pressure, iG TRANSPORTATION PLANS ) fer to the page 6-1 and check the total weight, ete. © Survey the width of roads, road surface conditions, and traffic on the roads to be used, and ob- tain authorization to use the roads if necessary. @ POSTURE DURING TRANSPORTATION © Ramps Relationship of trailer height “H” and ramp length “L’ Units | mm Hq L 750 2800 or more 930 ~ 3900 or more 1410 ~ 4200 or more 1300 4900 or more Choose a length that will keep the slope angel under 15° and a material that is suf- ficiently strong. The ramp width should be at least 1.2 times the machine width. Bevel the end of the ramp as shown at point “A” on the figure. Fasten the ramp securely to the trailer with a metal fitting, etc., so it will not slip off, For better safety, insert a support under the ramp in the middle. “B @ LOADING AND UNLOADING THE EXCAVATOR Pn To pravent the arm and bucket cylinder from any damage, you are advised to follow the following instructions Do not have the arm and/or bucket cylinder fully extended toa "RAMP OVER CENTER” situa- tion, This allows sudden and abrupt contact of the arm or bucket to a trailer deck, ramp or the ‘ground. This can result in internal mechanical contact, Which can stretch the cylinder rod. 1, Remove any mud, etc., from the lower area to prevent the excavator from slipping side- ways off the ramp, 5— PG ‘© Always move at low (1st) speed on a slope. ‘© Tho excavator should always be loaded and un- loaded on firm, level ground. Set the trailer’s parking brake and set blocks under the crawler. 10TRANSPORTATION 2. When loading extend the bucket cylinder so it is directly over the trailer, lift the dozer blade, then climb up the ramp at slow speed. 3, Once on the trailer, slowly lift the boom, slew, and sot the excavator. 4, Lock the slewing, 5. Set blocks under the crawler at the front and rear and fasten with wire rope, ete. 6. When unloading, lift the dozer blade, and maintain the bucket at a height of 40 to 50 cm above trailer bed so that it can be quickly lowered to the ground and the ma- chine stopped in an emergency. re Never change directions or slew while on the ramp, as this extremely dangerous. @ SECURING THE MACHINE After the machine is loaded and positioned, fix the machine by the following procedure. Pull up on the safety lever and set to the lock position 2. Turn OFF all switches and pull out the starter key. 3. Lock all the caps and the door. 4. Apply the blocks to both the front and rear of the crawler and fix them with a wire rope of sufficient strength. This will prevent the machine from moving forward/back- ward or rolling due to vibration form the trailer. Attach all individual parts and re- moved parts to the trailer firmly. ‘The numbers in (_) indicate SK45SR model.TRANSPORTATION @ LIFTING PROCEDURES FOR MACHINE COMPLETE PEG ‘© The wire ropes to be used for lifting the ma- | chine should have sufficient strength against the machine weight. ‘© Improper lifting method and/or roping manner might cause for a movement or slip of the ma- chine while itis lifted up, resulting serious jury or damages on the machine, ‘© Do not impose a load quickly on the wire ropes and slings. ‘© When the lifting work is carried out in coopera- tion with plural persons, make sure to confirm every situations with exchanging signals with each other. ‘© ‘During the lifting work, keep any persons away from around the lifting machine especially under the machine Carry out the lifting work at a level ground, with a crane with capacity to lift 5 tons or more. 1, Start up the engine, and slew the machine so that the dozer blade comes to backside of the machine. 2, Raise the dozer blade up to the most upper position. 3. Manipulate each operating lever to take the machine a posture as shown in the fig- ure, 4. When the boom is swung, operate the boom swing pedal to face the boom direct front. 5, Stop the engine, and make the safety lever to “LOCK POSITION’. Then take off the machine after confirmation for no abnor- malities around the operators seat. 6. Install shackles to both bores @ provided at both ends to the dozer blade, and put the wire ropes on them. 7. Put the wire ropes on the “A” portion of the upper boom: 8. If any portions of the wire ropes directly get touch with the machine when the wire ropes are put up, protect the machine from damages by means of applying a wooden piece or rag between them. Nom Model sags | SKASSR SizeA (mm)| 1,800 | ‘1,800 [SizeA te | SizeB (mm)| 4,200 4.200 Total weight (kg){3,970 (Canopy)|4,660 (Cenopy) Total weight (ka) 4,100 (Cab) | 4,790 (Cab) 5-30 YQ ND tebe | Put the wire ropes from 30 to 40 degrees of lifting angle with each other. Slightly lift to the machine to confirm the balance, then lift up the machine.CHAPTER 6. SPECIFICATIONS MAIN SPECIFICATIONS: @ SPEED AND GRADABILITY Model SKa0SR z SKASSR Item Rubber erawfer | __Wronrawier | Rubber erawier | Won crawler Stewing Speed_min"{rem} 777) a1 @n Low(tst) [High(2nd) | Low( tet) [High(2nd)| Low 1st) [High 2nd) | Low(tst) [High2nd) Travel Speed ype ae eee me = km/ny 97 a?_~[ 25 | 44 | 29 | 48 | 26 | 40 Gradability _96(dearee) 88 (30) @ ENGINE Tem Moder SKe0SR SKA5SR Model YANMAR STNEGS YANMAR 4TNE88 Type ‘4.Gyele, vertical, water | 4.Cyele, vertical, water Number of eylinders- Bore x stroke Total Displacement 4-88mm x 90mm utput/Rotation 30.5PS /2,400rpm __87PS / 2.20pm Maximum Torque/ Rotation 10 5kgfem / 1,800rpm [73 Bkgf-m /1.600rpm Storer 12V /1.4eW tev /2.0KW Alternator L “AV /40A _ 12V 740A @ HYDRAULIC COMPONENTS Tem ——— SK40SR SKASSR Hydraulic Pump Hydraulic Mote Hydraulic Motor (Travel) Control Valve Cylinder (Boom, Arm, Swing, Bucket, Blade) Return filter @-funetions multi Double acti Variable dieplecement axial piston + gear pump Safety valve containing filter type Axial piston motor ‘Axial piston motor ple ion cylinder @ SIDE DIGGING em Mager SKA0SR SKA5SR Type Boom swing by hydraulic eylinder Boom Swing | Canopy | ____ 88° (Right) /85' 7 a Angle Cab © WEIGHT en Noe SeanSA : SKaSSR ; ae Fibber shoe | Stee shoe | Rubber show Teel shoe weight Cab_| Canopy | Cab | Canopy | Cab | Canopy | Cab (kg) 4100 | 4030 | 4.160 | 4.660 | 4790 | 4700 | 4830 Upper machinery (kg) 2.080 | 1.950_| 2.080 | 2.920 | 2450 | 200 | 2450 Lower machinery (ka) | | 1585 | — | 1.750 | — 70 | Attachment (S.7.D) a5 | — | — [| — of [| — (Boom+Arm+ Bucket) _[2/63m Boom + 1.35m Arm + 0.13n! Bucket | 264m Boom + 1.43m Arm + 0.14nf Bucket Dozer Blade (wistsxHvand 1960mm X 360mm 7,980 X 360rm Strokes of Blade ise down) ‘360mm / 380mm 370mm 7 380mm 6-1SPECIFICATIONS (EXTERNAL DIMENSIONS (SK40SR + CANOPY SPEC.) @ WITH 2.63M BOOM AND 1.35M STANDARD ARM oon 3300 +960 ag | (EXTERNAL DIMENSIONS (SK40SR + CAB SPEC.) @ WITH 263M BOOM AND 1.35M STANDARD ARM NOTE: Numerical values marked 3 do not include the he ht of the shoe lug. Numerical values enclosed in parentheses ( _) indicate steel crawler specifications. 6-2SPECIFICATIONS EXTERNAL DIMENSIONS (SK45SR - CANOPY SPEC.) ) 2 Unit : mm @ WITH 284M BOOM AND 1.43M STANDARD ARM 3 EXTERNAL DIMENSIONS (SK45SR - CAB SPEC.) @ WITH 284M BOOM AND 143M STANDARD ARM a 2480 (2430 4070 1605 5360 ~~ a NOTE: Numerical values marked 3X do not include the height of the shoe lug. Numerical values enclosed in parentheses ( _) indicate steel crawler specifications. 6-3SPECIFICATIONS (WORKING RANGE (SK40SR » CANOPY SPEC.) @ BACKHOE ATTACHMENT ‘A_| Maximum digging reach A’ | Maximum reach at ground level % B | Maximum digging depth #6 | Maximum digging height 4D. | Maximum dumping height 4 E | Minimum dumping height * F | Vertical digging depth & | Minimum swing radius HCH [Height at minimum swing J | Befest level digging depth K | Horizontal digging Stroke L_ | stroke at ground level Minimum 1.35m Standard arm 0.131? Bucket 5550 5420 3330 5200 3800 1510 2510 2040 407 2880 2360 2) Unit: mm 165m Long arm 0.13mi Bucket 5840 5720 3634 5640 4050 1230 2910 2140 4070 3240 2800 1700 NOTE: Dimensions marked % do not include the height of the shoe lug. 6-4SPECIFICATIONS WORKING RANGE (SK40SR « CANOPY SPEC.) ) @ FACE SHOVEL ATTACHMENT Unit: mm 135m Standard arm 1.65m Long arm 0.13mi Bucket 0.13n4 Bucket 5630 [ 5930 jum reach at ground level 5510 all 5020 ete Maximum digging depth 3420 3720 jigging height 5490 Maximum dumping height 3870 Maximum dumping height (45°) 3250 Minimum dumping height 1420 Minimum swing radius 2040 Height at minimum swing I digging depth K | Horizontal digging |_ Stroke L_| stroke at ground level | Minimum Dimensions marked 4 do not include the height of the shoe lug 6-5SPECIFICATIONS WORKING RANGE (SK40SR * CAB SPEC. @ BACKHOE ATTACHMENT do not include the height of the shoe lug. 6-6(WORKING RANGE (SK40SR > CAB SPEC.) @ FACE SHOVEL ATTACHMENT SPECIFICATIONS Unit 1.36m Standard arm 1.65m Long arm 0.13mi Bucket 0.1304 Bucket ‘A_| Maximum digging reach 5630 5930 “A | Maximum reach at ground level _ - 5820 Maximum digging depth [ 3720 [Maximum digging height 5490 Maximum dumping height 3820 #6 | Height ot minimum swing us U Maximum dumping height (45°) | | Minimum dumping height Minimum swing radius B-feet level digging dept! _| Horizontal digging stroke at ground level Minimum| NOTE: Dimensions marked + do not include the height of the shoe lug.SPECIFICATIONS WORKING RANGE (SK45SR » CANOPY SPEC.) @ BACKHOE ATTACHMENT Unit: mm: “Attachment Type 143m Standard arm 0.14mi Bucket 173m Long arm 0.12mi Bucket Maximum digging reach Maximum reach at ground level_| | Maximum digging height _ 4D | Maximum dumping height 4 E | Minimum dumping height 4 F | Vertical digging depth G | Minimum swing radius % J [Bett level digging depth _| Horizontal digging —|_Stroke | L_| stroke at ground lovel Minimum 5880 5750 3570 5600 NOTE:; Dimensions marked % do not include the height of the shoe lug. 6-8 “6160SPECIFICATIONS WORKING RANGE (SK45SR » CANOPY SPEC.) @ FACE SHOVEL ATTACHMENT Unit | mm __Attachment Type] 143mStandard arm — | 1.73m Long arm — 0.14mi Bucket 0.124 Bucket ‘A | Maximum digging reach 5960 6250 —_’ | Maximum reach at ground level | 540 6130 3B | Maximum digging depth 3650 3950 | Maximum digging height 5710 5910 D_| Maximum dumping height 4040 4240 0’ | Maximum dumping height (45°) ~ 430 3540 KE imum dumping height 1500 1210 F mum swing radius 2100 2190 4250 7 4270 _ ging 3200 3540 K_| Horizontal digging 1890 2390 3860 3660 L_ | stroke at ground level NOTE: Dimensions marked 4 do not include the height of the shoe lug. 6-9SPECIFICATIONS WORKING RANGE (SK45SR - CAB SPEC.) @ BACKHOE ATTACHMENT Unit | mm ‘Attachment Type] 143m Standard arm 173m Long arm tem, 0.140 Bucket 0.12mi Bucket A | Maximum digging reach 5880 6160 A’ | Maximum reach at ground level 3B | Maximum digging depth % C_| Maximum digging height _ D_ | Maximum dumping height %E_| Minimum dumping height K_ | Horizontal digging L_| stroke at ground love NOTE: Dimensions marked 4 do not include the height of the shoe lug. 6-10WORKING RANGE (SK45SR » CAB SPEC.) @ FACE SHOVEL ATTACHMENT —_Attachment Type Item ——— 143m Standard arm 0.14mi Bucket SPECIFICATIONS Unit : mm 1.73m Long arm 0.12mi Bucket ‘A_| Maximum digging reach 5960 6260 ximum reach at ground level a ~ 6130 B_| Maximum digging depth 3650 3950 | digging height 5650 3D | Maximum dumping height 3650 3820 Maximum dumping height (45° ~ 3280 3380 3% E | Minimum dumping height 1340 ~_F_| Minimum swing radius 2100 4070 I J_| fost level digging depth 320 K | Horizontal digging |_Stroke 1890 2390 L_| stroke at ground level | Minimum 3860 3660 NOTE: Dimer 6-1 jons marked do not include the height of the shoe lug.SPECIFICATIONS SHOE TYPES (SK40SR + SK45SR) ic Total width: round sure (kg/em*) Shape Model ee of crawler | Staund eressucecke‘en) eundinresera cheat) (mm) Gam) Canopy Cab Rubber crawler | SK40SR 400 1,960, 0.25 | 0.26 = t SK45SR_ 400 1,980 0.27 | 0.28 Sk40SR 400 1,980 02 (08 | a _ oo — SK45SR 400 1,980, 0.28 | 0.29 RR) Struck Outside Width oF Heaped cnecity | caporty | cBuekat mm | numtar | Welt Csaba) | coats | Wut | ales | UT | ce) 0.086 0.066 450 390 3 80, 0.13 (STD) | 0.10 ooo |b] 100 “013 (HD) | 0.10 4 105 0.16 012 700. 5 110 NOTE: HD means Heavy Duty type. BUCKET TYPES (SK45SR) Struck Outside Wideh oF Hoe Bucket Heaped capacity | cSpoity Bick mm) Number | Weight csab-us) | (sab) | “aos | aeata | |? 0088 0.068) Es 0.12 _ 0.086 40 | 4 100 0.14 (STD) | o1t 590, 4 | 10 0.14 (HD) on | 590 4 113 016, 012 __ 640 5 120 0.18 0.13 / 690 5 125 OVERALL SPECIFICATIOI a. ‘Model SK40SR i SK45SR Length x Height % Width (Lx H XW) (m) 273% 1.01 X 0.26 2.94 X 1.06 X 0.26, Weight (kg) 200 240SPECIFICATIONS (OVERALL SPECIFICATIONS OF ARM AND BUCKET Medel] arm Item ‘SK40SR, SK45SR. |1.35m Standard Arm] 165m Long Arm |1.43m Standard Arm] 1.73m Long Arm “+ 0.13m? Bucket + 0.13m? Bucket_| + 0.14m? Bucket | + 0.12m* Bucket Length X Height X Width (L > H x W) (m) Weight kg) 256 x 051 x06 | 285 x 051 x 06 | 2.60 x 0.52 x 0.65 2.96 x 0.52 x 0.65 230 240 260 270_ ee Item Arm] SEAR SK45SR, 1.35m Standard Arm)_1.65m Long Arm_|1.43m Standard Arm|_1.73m Long Arm Length x Height X Width (LH x W) (m)| Weight (kg) 1.8 X 0.30 X 0.28 2.1 x 0.39 x 0.28 | 1.88 x 0.41 x 0.29 2.19 x 0.41 x 0.29 130 160 OVERALL SPECIFICATIONS OF BUCKET ) SKNSR__ Arm . 0.13m* Bucket . tem ~~ Am | 0.086" Bucket SID/ HD) 0.16m? Bucket Length X Height eke cL tw) (am [078 X 068 X O45 | 0.78 x 0.69 x 06 | 0.78 x 069 x 07 Weight ~ kg) 80 100 (105) 110 [Medal __ ~__ SKASSR "Arm | pain Bucket | o.12m Bucket | OFgm? Bucket | tem Length x Height X Width (LH x W) (m) (STD / HD) 0.16m* Bucket 0.79 X 0.69 * 0.45 | 0.79 x 0.69 x 0.55 0.79 x 0.69 X 0.65 | 0.79 x 0.69 x 0.70 Weight (kg) 90 yoo) 410 (115) 415 ———— Model SK45SR. Arm 0.18m* Bucket Igem = Length Height X Width (Lx H x W) (m) 0.79 x 0.69 x 0.75 Weight (ka) 120CHAPTER 7. OPTIONAL DEVICE HYDRAULIC BREAKER (SELECTION OF THE HYDRAULIC BREAKER When mounting the breaker on the hydraulic excavator, it is necessary to match stability, hy- draulic pressure, and the oil level for each breaker. To select hydraulic breakers, call your dealer or service shop. BEFORE OPERATING THE HYDRAULIC BREAKER Consult your KOBELCO distributor for the piping or enforcement of the arm when installing the hydraulic breaker. Thoroughly read through the Hydraulic Breaker Operation Manual and the section PRECAUTIONS DURING OPERATION of this manual, and use due caution so as not to dam- age the machine body or hydraulic breaker during operation. (HYDRAULIC OIL LEVEL CHECK AND CONTAMINATION PREVENTION When the hydraulic breaker is not installed on the machine, attach the blank plugs to the tube end on the arm top end and the hose end on the hydraulic breaker side to prevent dust and water from entering into the piping. Before starting operation, check the cap screws on the tube fixing clamps for looseness, and the connections of the tubes and hoses for oil leakage. (HOW To ADJUST THE CARRY-OVER FUNCTION OF CONTROL VALVE Before operating the machine on which breaker, fork, nibbler, etc, are installed, re- move the protective tube @ on the carry- over port V of main control valve, loosen lock nut @, and tighten set screw After tightening it securely, do not fail to in- stall the protective tube () again. Tools : Spanner (HEX 183mm) Allen wrench (4mm) Tightening torque : Lock nut _9.8Nem {kgfem} Set screw 13.7Nem (1.4kgf+m)} If the set screw @) and lock nut @ are not securely tightened, the plug of control valve may not seat, or even though it is seated it may be opened, and the oil may leak and enter into the tank port. Do not fail to tighten them to the specified torque and also to check L dimension. ~The L dimension of set serew @ when | the carry-over function is not_per- formed is 21 mm 2. The L dimension of set screw @) when the carry-over function is performed is 141mm, I-11OPTIONAL DEVICE (OPERATION PROCEDURE } re ONLY OPERATE BREAKER WITH MACHINE | UPPER AND BOOM IN A STRAIGHT, PARALLEL POSITION TO THE CRAWLERS (IDLER SIDE ‘OR SPROCKET SIDE). DO NOT OPERATE BREAKER WITH MACHINE UPPER OR BOOM IN AN OFFSET OR SWUNG POSITION, Machines with breaker independent circuit and nibblers and breaker changeable cir- cuits are available. The operation pedal at the front left side of the operator's seat is used to operate the machine. For machines with nibblers and breaker changeable circuits, carry out appropriate switching in accordance with “Switching the Selector Valve" as described later. @ OPERATION PEDAL 1. Hydraulic breaker independent circuit Release the pedal lock at the front left side of the operator's seat to operate the pedal. Direction to push down pedi “Pushing down by heel Pushing down by toé [Operation conditions | Breaker operates Breaker stops 2. Nibbler and breaker changeable circuit Release the pedal lock at the front left side of the operator's seat to operate the pedal. @ HYDRAULIC BREAKER Direction to push down pedal Pushing down by heel Pushing down by toe (Operation conditions Breaker operates _ [Breaker stops @ NIBBLER Direction to push down pedall Operation conditions Pushing down by toe _| Nibbler closed (Grip) Pushing down by heel | Nibbler open (Releose) @ PEDAL LOCK DEVICE The pedal lock device is used to lock the op- eration pedal. EB -- Lock position A, (J * Release position When the broaker and nibbler oper: necessary, set the pedal lock device in the lock po- sition, Carelessly touching an unlocked operation pedal may result in a serious accident. 7-20OPTIONAL DEVICE SWITCHING THE SELECTOR VALVES (NIBBLI The selector valves @ are provided for the main circuit in the machines with nibbler and a breaker. Switch the selector valves to the positions which are appropriate for the specifications. NOTE: If the selector valves are not properly set, operation failure will occur. This may not only lower operation efficiency and speed, but may also damage the machit NOTE: Before starting the switching operation, stop the engine and place the attachment on the ground to stabilize it. TOOLS USED Selector | circuit Tools B Main | Spanner (24mm) . circuit | Alien wrench (mm) @ SWITCHING PROCEDURE 1. Remove the floor mat interior of the cabin. 2, Remove the cover on the left side of the floor plate. 3. Use a Allen wrench © to loosen and move the hexagon socket head screw 4. Use a spanner © to turn the selector valve to the proper position 5. After the valve is in the proper position tighten the hexagon socket head screw ©) 6. Markings of the selector valve are shown, below. B : Breaker N : Independent flow of Nibbler 7. Install cover @ and floor mat on the speci- fied places. ER & BREAKER) Selector valve switching points To Hycraulic tank To Attachment — To Control valve ee (rption) ToAtaoiret To Sct & vale fee Stamo 0 Hau E} tk For breaker _ For nibblerOPTIONAL DEVICE @ CONNECTION OF ATTACHMENT HYDRAULIC CIRCUIT Breaker, nibbler, etc. should be connected in the following procedure. Remove plug (@ on the section of stop valve piping (2 places on the LH and RH sides) Care must be taken not to lose or dam- age the removes parts (plugs) Connect the pipes for breaker, nibbler, etc. to the sections where the plugs were connected, ‘The stop valve is used to stop the flow of hy- NOTE: draulic oil. © Lock : The flow of hydraulic oil stops © Flow ; The hydraulic oil flows. © When the breaker or nibbler is removed, turn the stop valve to the Lock position, and attach plugs. Lock position Flow position 7-4OPTIONAL DEVICE PRECAUTIONS DURING OPERATION ) @ DO NOT MOVE OBJECTS WITH THE BREAKER’S SIDE OR BACK FACE Do not move rocks with the side or back face of the breaker. This may damage the hy- draulic breaker and exert an undue load onto the boom and arm. @ NEVER USE BREAKER TO PRY AND BREAK FORCIBLY Do not use the breaker to pry and break rock and concrete. This may damage the hydraulic breaker, and also boom, arm and cylinder. @ STRICTLY PROHIBITED TO OPERATE THE ARM IN THE VERTICAL POSITION ‘The arm should not be operated in the verti- cal position to prevent the arm cylinder from vertical shocks. This may damage the rod packing and pis- ton and cause the oil leaking from those sec- tions. @ D0 NOT OPERATE THE BREAKER WITH THE ROD FULLY EXTENDED FROM THE CYLINDER Do not fully extend the rod from the cylin- der, Using the rod fully extended will exert undue load on the cylinder and machine body, resulting in an extremely shortened machine life.OPTIONAL DEVICE @ ONLY PERFORM CRUSHING WITH THE BREAKER Never use the hydraulic breaker for other purposes except for crushing. Place the ma- chine on level and stable ground when oper- ating the breaker, @ AVOID CONTINUOUS IMPACTING FOR MORE THAN 30 SECONDS Change the crushing point if the ground or rocks have not broken after being impacted for more than 30 seconds. Extended impacting will cause the oil tem- perature to go up, and this will lead to accu- mulator failure and cylinder seal deterioration. @ STOP OPERATION WHEN THE HYDRAULIC HOSES SURGE Abnormal shaking of the hydraulic hose in- dicates accumulator puncture. Stop opera- tion and contact the service shop specified by KOBELCO. @ DO NOT DROP THE BREAKER TO CRUSH If the hydraulic breaker is dropped to crush rocks, each part may become damaged. Do not use gravitational force and drop the breaker to crush rocks.OPTIONAL DEVICE @ BREAKER OPERATION IS PROHIBITED If the breaker is operated with the upper frame swung, excessive load is applied to the track assembly, which will result in shoe plate bending and oil leakage from the roller. Operate the machine with upper frame set in the proper direction, Lateral work prohibited PERIODIC INSPECTION AND MAINTENANCE INTERVAL. Contamination and deterioration of hydraulic oil will cause malfunctioning of the control valves, early wear and seizure of the hydraulic pump and consequential failure of the entire hydraulic circuit. Replace filters and hydraulic oil, referring to the following table | Replacement interval Inspection / oe melmenence|iteny Initial 2nd replacement Regular Hydraulic oil Hydraulic tank | aren ee Every 600h Return filter Hydraulictank | 25h | ——_—*100h Every 200h REINFORCING THE ATTACHMENT When the machine is used with the breaker and nibbler, the front attachment may get damaged Contact your KOBELCO distributor for enforcement of the arm.CHAPTER 8. ALPHABETICAL INDEX (SK40SR-SK45SR L B — Boom swing operating pedal 29 Bucket types (SK40SR) --- 6-12 Bucket types (SK45SR) *~ 6-12 _ : - Cab 218 ~ 216 Dozer blade operating lever - —-———- LU Expendable parts (SK40SR and SK45SR) External dimensions (SK40SR*Canopy spec.) * External dimensions (SK40SR+Cab spec.) External dimensions (SK45SR*Canopy spec.) External dimensions (SK45SR-Cab spec.) Co F Fuse box at Fusible link s+ aa Hydraulic breaker CT Inspection and maintenance (When required) --- 4-13 ~ 4-20 Inspection and maintenance (B-Hour) ---4-21~ 4-23 Inspection and maintenance (B0-Hour) ~ 4-24 ~ 4-27 Inspection and maintenance (250-Hour) ++ 4-28 ~ 4-32 Inspection and maintenance (800-Hour) ~ 4-33 ~ 4-34 Inspection and maintenance (1000-Hour) «4-35 ~ 4-38 Inspection and maintenance (2000-Hour) ++ 4-39 ~ 4-40 Lubrication and ‘maintenance intervals +410 ~ 4-12 M Monitor panel Coolant temperature meter ++*+++*-- Fuel meter: Hour meter - Low fuel warning lamp Engine oil pressure lamp Battery charge lamp ~ Coolant temperature lamp Air cleaner clogging lamp High (2nd) travel speed lamp ~ Glow lamp Deceleration switch Working light switch Operating lever Option pedal . Overall specifications of boom Overall specifications of arm Overall specifications of bucket Overall specifications of arm and bucket R Recommended oil viscosity and its capacity (SK40SR) Recommended oil viscosity and its capacity (SK45SR)ALPHABETICAL INDEX Sa Switch Starter switch - Travel speed select switch Horn switch ~ Wiper switch Heater switch - Safety lever - Shoe types (SK40SR*SK45SR) seseee 8 612 -—_ Travel lever - Throttle lever Transportation ~ 64~6-7 os 6-8 ~ 6-11 Working range (SK40SR) ~~ Working range (SK45SR) ~~