CDM 307
CDM 307
This Operation Manual briefly introduces the safety and maintenance regulations of CDM308 ( include
CDM307 and CDM312 ) skid steer loader for the use and reference of machine operators, maintainers
and technical managers.
Operation Manual is a guide for proper use and maintenance of this machine, therefore please carefully
read this manual before operating this machine.
Many faults are caused as a result of operator’s lack of reading this manual carefully and other human
reasons; a high level of safety awareness and good maintenance of the machine makes a safe, efficient
operation, and thus brings you more benefits. Therefore, please read and understand safety instructions
and strictly follow the related instructions before operating this machine. Incorrect operation, lubrication,
maintenance and repair of the machine are dangerous and may cause accident of human casualties.
We will continue to strive to improve product synthesis performance by ameliorating product design to
make the machine work more efficiently. We reserve the right to make changes to machine parameters
and configurations, any changes of contents about this manual will not be precaution, and any technical
parameters involved in this manual will not be taken as a check or test basis.
In order to better service you and improve product and service quality, if you find any problem or have a
good solution for the problem during the use of this machine and Operation Manual , please correspond
with us timely.
PREFACE
Manual Information
Please keep the Manual book safely in the cab for consult momentarily. Read and understand the
content before use the machine.
It may not include the improve and update parts of the product.
Some structures or accessories in the photos or pictures of this manual may be different from your
machine.
If you have any questions about the book, please contact Lonking China agents for lately information.
Structure
The manual include six parts, preface, safety information, machine information, machine operation,
maintenance part, hoisting and transportation of skid steer loader, common faults and troubleshooting,
reference tables of density of common materials.
Safety Information
Basic safety precautions and warnings are listed in this part. It also provides the contents and locations
of various warning labels on the machine.
Product Information
Purposes, performance and specifications of the product are provided in this part.
Machine Operation
Instruments, switches and machine operation. Start-up and shut-down. Operation control.
Maintenance Section
The maintain periods of each part. Maintaintenance items should be maintained during the
maintaintenance period.
Appendix
CONTENT
DEAR USER............................................................................................................................................................. 1
PREFACE................................................................................................................................................................. 1
2.3 PURPOSE............................................................................................................................................. 25
LOADER........................................................................................................................................................ 57
1
CONTENT
4.4 LUBRICATION...................................................................................................................................... 59
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CHAPTER Ⅰ SAFETY INFORMATION
Please read and understand all the precautions of above Safety mask in the
manual or on the machine, and strictly observe these safety precautions during
operation or repair.
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CHAPTER Ⅰ SAFETY INFORMATION
1.1.2 Most accidents that involve product operation, maintenance and repair are caused by failure
to observe basic safety rules or precautions.An accident can often be avoided by recognizing potentially
hazardous situations before an accident occurs. A person must be alert to potential hazards. This person
should also have the necessary training, skills and tools to perform these functions properly.
1.1.3 Improper operation, maintenance or repair on this product can be dangerous and could
result in injury or death.
1.1.5 Safety precautions and warnings are provided in this manual and on the machine. If these
hazard warnings are not heeded, bodily injury or death could occur to you or other persons, and cause
economic loss.
1.1.6 The hazards are identified by the "safety Warning Symbol " and followed by a " Warning
Label Word" such as "DANGEROUS","WARNING" or "CAUTION".
1.2.2 Make sure all the safety labels always are legible and in good conditions; .
1.2.4 If the picture on the label is not identified, please replace it.
1.2.5 Clean the labels with soft cloth, water and suds. Do not use solvents, gasoline or other
irritant chemical agents. These cleansers may disable the stickiness of the labels and make the labels
fall off the machine.
1.2.7 If any part sticking safety label is need of replacement, new safety label need to stick in the
changed part.
1.2.8 Various new safety labels are provided in any Lonking after-service institution.
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CHAPTER Ⅰ SAFETY INFORMATION
Figure 1
Figure 2
Figure 3
1.3.5 "DANGER" or "WARNING" safety labels are setted near hazardous place. For common
safety protection, see "Caution" safety label.
1.3.6 Safety signal words listed above may not appear in some warning labels of the machine.
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CHAPTER Ⅰ SAFETY INFORMATION
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CHAPTER Ⅰ SAFETY INFORMATION
Figure 4-2
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CHAPTER Ⅰ SAFETY INFORMATION
Figure 4-3
Figure 4-4
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CHAPTER Ⅰ SAFETY INFORMATION
Figure 4-5
Figure 4-6
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CHAPTER Ⅰ SAFETY INFORMATION
Label location: inside the cab, in the left back of the cab.
Figure 4-8
Figure 4-9
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CHAPTER Ⅰ SAFETY INFORMATION
PINCHING HANDS WARNING LABEL (10)
Label location: on the right rear side of the frame when the lift arm is down.
Figure 4-10
Figure 4-11
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CHAPTER Ⅰ SAFETY INFORMATION
Figure 4-12
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CHAPTER Ⅰ SAFETY INFORMATION
Figure 4-14
Figure 4-15
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CHAPTER Ⅰ SAFETY INFORMATION
Figure 4-16
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CHAPTER Ⅰ SAFETY INFORMATION
Label location: it is in front of the frame, rear side of the balancing weight.
Figure 4-19
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CHAPTER Ⅰ SAFETY INFORMATION
1.5.1.1 Before the maintenance and repair , hanging a warning signs on the start switch or control
handle, such as "No action"or other similar warning signs.
1.5.1.2 Know the working width of the machine. When the machine works in the neighbourhood of
the fence or the border barriers, personnels can keep distance of the machine.
1.5.1.3 Take care of high-tension wire and cable buried underground. If the Machine touches
these hazards, personal death or injuries may caused by electric shock .
1.5.2 SAFETY
1.5.2.1 When you operating the machine, do not wear loose clothing or jewelry tthat can snag on
controls or on other parts of the equipment.
1.5.2.2 Make sure that all protective guards and all covers are secured in place on the equipment.
1.5.2.3 Keep the machine free from foreign material. Remove debris, oil tools and other items from
the deck ,from walways, and from steps.
1.5.2.4 Keep the scattered items such as lunch boxes, tools and other items are not machine
parts.
1.5.2.5 Be familiar with special hand signals on the site, only one person should send the hand
signals.
1.5.2.6 Do not smoke when you repair the air conditioning,. Also, do not smoke if refrigerant gas
may be present. Inhaling the fumes that are released from a frame that contacts air conditioning
refrigerant can cause bodily harm or death. Inhaling gas air conditioning refrigerant through alighted
cigarette can cause bodily harm and death.
1.5.2.7 Do not put maintenance oil fluids into glass containers. Discharge all liquids into the
suitable container.
1.5.2.8 Do not operate the machine in the contaminative area. If not, and potential hazards may
exist, should take special action to protect the operator from the danger.
1.5.2.9 If hazards exist, e.g. fragments splashes caused by operating hydraulic hammer, it is
better to assemble the guards or guards that have equal protection effect such as anti-impact materials,
expanded protection and so on.
1.5.2.10 The cab is an important structure to protect the operator. The operator should replace the
cab if plastic deformations or cracking effects take place on the any part of the cab.
1.5.2.11 The use of cleanser should follow the requirements of manufacture. Reporting all the
items need to inspect and repair.
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CHAPTER Ⅰ SAFETY INFORMATION
avoid the economic loss or personal injury.
1.5.3.2 Check whether all the instruments are be operated normally or not. nonshorted terminal
post of start motor or battery. Short circuit makes the circuit round the normal starting system of engine.
Short circuit system can also cause damage to the circuit system.
1.5.3.3 Please adjust the seat. until drivers sit close to the back position, they can step on the
pedal
1.5.3.4 Check the status of seat belts and fasteners. Replace damaged or worn parts. No matter
how the appearance is , please replace the safe belt after three year's service.
1.5.3.5 Make sure there is a good view around the cab, and the operator can see the scene
outside the cab clearly.
1.5.3.6 Ensure that the machine's lighting system can meet various requirements of working
conditions, ensure that all lights work normal.
1.5.3.7 Do not left parts and tools around the operator seat, Because walking and operations will
produce vibration, they may fall down and cause damage to the lever or switch, or move the joystick to
start devices, cause an accident.
1.5.3.8 Check the coolant level, diesel oil level and engine oil lubricant oil level, check whether the
air filter is clogging or not.
1.5.3.9 Fire extinguishers are recommended. The operator should be clear that the storage
location of fire extinguishers and familiar with how to use fire extinguisher.
1.5.6.2 Do not disconnect disassemble any hydraulic components or parts until pressure is
released or personal injury may occur.
1.5.6.3 Always use a board or cardboard when checking for a leak. Escaping fluid under pressure
can penetrate body tissue and cause serious injury and possible death. Even a pinhole-sized leak may
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CHAPTER Ⅰ SAFETY INFORMATION
cause serious personal injury. If the liquid injected into your skin, it must be treated immediately. Please
seek treatment from a doctor that is familiar with this type of injury.
1.5.7.2 When pressurized air or water is used for cleaning, wear protective clothing, protective
shoes and eye protection. Eye protection including goggles or a protective face shield.
1.5.7.3 The maximum air pressure for cleaning must be below 0.2MPa.
1.5.7.4 The maximum pressure of water for cleaning must be below 0.25MPa.
1.5.8.2 Cab must be supported properly when you work under the cab of the machine.
1.5.8.3 Unless you are directed, otherwise, when moving the machine or engine running, never
make any adjustments.
1.5.8.4 Whenever there are equipment control linkages the clearance in the linkage area will
change with the movement of the equipment or the machine. Stay clear of areas that may have a
sudden change in the clearance with machine movement or equipment movement.
1.5.8.6 If it is necessary to remove guards in order to perform maintenance, always install the
guards after the maintenance is ended.
1.5.8.7 Keeping objects away from moving fan blades.The fan blade will throw objects or cut
objects.
1.5.8.8 Do not use a kinked wire cable or a frayed steel cable. Wear gloves when you handle steel
cable.
1.5.8.9 when you strike a retainer pin with force, the retainer pin can fly out. the loosen retainer pin
can injure personnel. Make sure that the area is clear of people when you strike aretainer pin. To avoid
injury to your eyes, wear protective glasses when you strike a retainer pin.
1.5.9.2 Flammable fluid that are leaking or spilled onto the hot surfaces or electrical components
may cause a fire. A fire may cause personal injury and property loss.
1.5.9.3 Clean away all accumulations of flammable materials attached to the surface of the
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CHAPTER Ⅰ SAFETY INFORMATION
machine, do not allow any flammable material to accumulate on the surface of the machine.
1.5.9.5 Do not weld or flame cut on tanks or lines that contain flammable fluids or flammable
materials. Clean the lines and tanks with a nonflammable solvent prior to welding or flame cutting.
1.5.9.6 Check all the wires before starting the machine every day. Repair loose or frayed wires,
clean and tighten all the line connectors before operation.
1.5.9.7 Inspect all lines and hoses for wear or deterioration. Replace damaged lines and hoses in
time . Damage to the protective cover or insulation may provide fuel for fires. Make sure the lines and the
hoses should have adequate support and secure clamps.
1.5.9.8 Be careful when you are filling fuel , lubricants and other oil to a machine. Do not smoke
while you are filling fuel , lubricants and other oil to a machine. Do not fill a machine near open flames
or sparks. Always stop the machine before filling oil. fill the fuel tank outdoors.
1.5.9.9 Gases from a battery can explode. Keep any open flames or sparks away from the top of a
battery. Do not smoke in battery charging areas.
1.5.9.10 Do not jump a metal object to the terminals of the wires to check the battery charging
condition. Do use a voltmeter or hydrometer .
1.5.9.11 Incorrect jumper cable connections can cause an explosion that may result in personal
injury. Please refer to " maintenance and cautions of suitable battery for the loader " for specific
instructions.
1.5.10 LINES
1.5.10.1 Do not bend high pressure lines. Do not strike high-pressure lines. Do not install any lines
that are bent or damaged .
1.5.10.2 Please repair any lines that are loosen or damaged. Leaks may provide fuel for fires.
Consult your Lonking dealer for repair or for replacement parts.
1.5.10.3 Perform a double check to lines. Do not use bare hands to check for leak. Please Use
board or cardboard to check for leak.
1.5.10.4 If any one of the following conditions is present , replace the parts:
1.5.10.5 Make sure that all clamps, guards, and shields are installed correctly. During machine
opertion, this will help to prevent vibration,rubbing against other parts, excessive heat .
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CHAPTER Ⅰ SAFETY INFORMATION
1.5.11.1 Explosion of air inflated tires have resulted from heat-induced gas combusion inside the
tires. explosion can be caused by heat that is generated by welding ,by heating rim components, by
external fire.
1.5.11.2 A tire explosion is much more violent than a blowout. the explosion can propel the tire ,
the rim components , and the axle components as far as 500m or more from the machine. Both the force
of explosion and the flying debris can cause damage to buildings, and personal injury, or death.
1.5.11.3 Do not approach a hot tire. Do not use water or calcium as a ballast for the tires. Dry
nitrogen gas is recommened for inflation of tires. To avoid overinflation, special nitrogen inflation
equipment and training in the usage of equpment are necessary. A tire blowout or arim failure can result
from improper equipment or from misused equipment.
1.5.11.4 When you inflate a tire, stand behind the tread and use a spare chuck.
1.5.11.5 servicing tire and rims can be dangerous. only trained personnel that use proper tools
and proper rocedures should perform this maintenance. if correct procedures are not used for servicing
tires and rims, the assemblies could burst with explosive force. this explosive force can cause serious
personal injury or death.
1.5.12.4 When the lightening is striking, if you are in the cab , do not leave the cab. If you are on
the ground, stay away from the vicinity of the machine.
1.5.13.2 Before starting the engine, move all the handle joystick to NEUTRAL position.
1.5.13.3 Diesel engine exhaust contains products of combusion which are harmful to your health.
Always operate the engine in a well ventilated area. if you are in an enclosed area, vent the exhaust to
the outside.
1.5.14.1 Before mounting the machine, clear the stairs and railings. Check stairs and railings. Do
all necessary repairs.
1.5.14.2 Face to the machine when up and down the machine. Keep a three-point contact with
steps and handrails.
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CHAPTER Ⅰ SAFETY INFORMATION
Note: The three-point contact can be both hands and a foot or both feet and a hand.
1.5.14.3 Do not mount the moving machine. Prohibit getting down from the moving machine. Do
not jump down from the machine. When get up and down machine, do not carry tools or objects. Use
hand-pulled rope to pull the equipment to the platform. Do not use the lever as handrail, when into and
out of the cab.
1.5.15.2 Clear all obstacles on the path of the machine. Beware of hazards, such as wires, ditches
and so on.
1.5.15.3 Make sure that all windows are clean. Secure the doors and the windows in the open
position or in the closed position.
1.5.15.4 Adjust the rear view mirrors for the best vision of the area around the machine.
1.5.15.5 Ensure that the horn, the backup alarm, and all other warning devices are working
properly.
1.5.16 OPERATION
1.5.16.1 Only operate the machine while you are sitting in a seat. the seat belt must be fastened
while you operate the machine. only operate the controls while the engine is running.
1.5.16.2 When you operate the machine and work tools slowly in an open area, check for proper
operation of all controls and all protective devices.
1.5.16.3 Before you move the machine, make sure that no one will be endangered.
1.5.16.4 Do not allow riders on the machine unless the machine has an additional seat with seat
belt.
1.5.16.5 Note any needed repairs during machine operation. Report any needed repairs.
1.5.16.7 Avoid operating the machine across the slope. when possible ,operate the machine up
the slopes and down the slopes.If the machine begins to sideslip on a downgrade, immediately remove
the load and turnthe machine downhill.
1.5.16.8 Avoid any conditions that can lead to tipping the machine. the machine may tip when
you work on banks and on slopes. also, the machine may tip when you cross ditches, ridges or other
unexpected obstacles.
1.5.16.9 Maintain the control of the machine. Do not overload the machine beyond the machine
capacity.
1.5.16.10 Make sure that hooks and dragging are enough. Traction device can only be connected
to the traction pin or hook. Never allow other personnel to straddle a wire cables.
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CHAPTER Ⅰ SAFETY INFORMATION
1.5.16.11 Before adjusting the machine, make sure that no person is between the machine and
the equipments. Pave the hook of the traction device to align the traction equipment with the traction pin.
Adjust the machine. Connect the machine to the towing equipment. You should know the maximum size
of your machine.
1.5.17.1 Do not stop the engne Immediately after the machine has been operated under load. This
can cause overheating and accelerated wear of engine components.
1.5.17.2 After the machine is parked and the parking brake is engaged, allow the engine to run for
five minutes before shutdown. This allows hot areas of engine to cool gradually.
1.5.18 PARKING
1.5.18.1 Park the machine on a level surface. If you must park the machine on a downgrade, block
the tires.
1.5.18.3 Switching the electric key on the instrument panel to STOP position and remove the key.
1.5.18.4 A short circuit that may cause some parts to leak current, or human destruction may
cause batteries to leak. Turn the main power switch to off (O) position to prevent the discharge of
batteries .
1.5.19.2 Operators should receive good skill training, operating training provides a person with the
following abilities:observation of working and environmental conditions, feel for the machine operation,
identification of potential hazards, etc.
1.5.19.3 When you work on side hills and when you work on slopes, consider the following
important factors:
.
1 At higher speeds, forces of inertia tend to make the machine less stable.
3.Grass, muddy road surface and gravel roads may promote the slipping of the machine
6.Do not operate the machine accross the slope. When possible,operate the machine up the slope
and operate the machine down the slope.
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CHAPTER Ⅰ SAFETY INFORMATION
.
7 Operating on the slope will affect the normal performance of the machine, promote the instability
of the machine and increase more hazards.
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CHAPTER III MACHINE OPERATION
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CHAPTER III MACHINE OPERATION
Table 1
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CHAPTER III MACHINE OPERATION
Table 2
1 ( )
Cylinder number-Inner diameter mm ×distance 4 -98mm×120mm
2 Seted power (kW )/rotate speed(rpm) /
50kW 2600rpm
Table 3
1 ( )
Cylinder number-Inner diameter mm ×distance 4 -98mm×120mm
2 Seted power (kW )/rotate speed(rpm) 63.0kW /2600rpm
3 Max. Torque (N·m )/rotate speed(rpm) 296N·m /1600rpm
4 Fuel consumption (g/kW·h) 272g /kW·h
5 Total displacement 3.620L
Please see the the "user manual" of diesel engine that is suitable for the machine, you can get more
details.
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CHAPTER III MACHINE OPERATION
2.3 PURPOSE
2.3.1 CDM307, CDM308, CDM312 Skid Steer Loader are suitable for operating in small working sites,
uneven ground, the places of job changed frequently, but also for large construction machinery and
auxiliary equipment. They are Widely used in road maintenance, pipeline placing, cable placing, park
virescence, snow shoveling, transportation , excavating and crushing.
2.3.2 The loader can be customized to include multiple functional devices, such as sweeper, snow
shoveling, spiral drill, goods fork, four - in -one bucket and milling machines.
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CHAPTER III MACHINE OPERATION
Figure 4
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CHAPTER III MACHINE OPERATION
Table 4
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CHAPTER III MACHINE OPERATION
2.5.1.1 Implement hydraulic system is used to control the action of the bucket, including oil tanks,
implement pump, the multiple way valve, the boom cylinder, the tilt cylinders, the leveling valve, oil tubes
and other components.
2.5.1.2 When the working device does not work, the hydraulic oil from the implement pump flows
to the implement distribution valve, then the hydraulic oil flows through chamber and flows back to the oil
chamber and oil tank.
2.5.1.3 When you shovel materials, dump materials, moving the right handle, the oil from the
implement pump flows through the distribution valve into the rear or front chamber of the bucket cylinder.
This causes the bucket to tilt up or down. When you raise or lower the lift arm, moving the left handle, the
oil from the implement pump flows through the distribution valve into the lower or upper chamber of lift
boom cylinder. This causes the lift and the bucket to raise or lower.
2.5.1.4 When the external load exceeds the raising or tilting up capacity of the system, or the piston
of boom cylinder reaches the end of the cylinder (the piston of the bucket cylinder reaches the front end
of the cylinder). When the system pressure goes up to the set point, the pressure oil opens the escape
valve to overflow and unload. The pressure oil flows through the distribution valve back to the oil tank.
2.5.1.5 When the oil pressure of the bucket cylinder front chamber is higher than the set pressure of
the double-acting escape valve in the front chamber multiple reversal valve, the pressure oil opens the
escape valve to overflow and unload. The pressure oil flows through the distribution valve back to the oil
tank. The implement oil from the pump flows through the distribution valve into the upper and lower
chamber of the boom cylinder and connects the fuel tank at the moment, the oil pressure in the upper
and lower chamber of the cylinder is low. The bucket can float freely caused by its own weight and can
work close to the ground.
2.5.1.6 The implement pump is gear type. The implement and traveling pumps are coaxial with the
engine, but the traveling pump is piston type.
The variable piston pump is connected to the engine by the coupling. It provides driving force for
the travel system.
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CHAPTER III MACHINE OPERATION
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CHAPTER III MACHINE OPERATION
2.5.3 THE WORKING DEVICE
2.5.3.1 The working device of the loader is mainly made up of the lift arm, the bucket base and the
bucket. See the Figure 7.
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CHAPTER III MACHINE OPERATION
Figure 8 FEAME
2.6.1.1 The electrical system is made up of the built -in rectifier generator, starter generator ( both
are the unit of the diesel engine. ), batteries, the lighting system, oil lines pressure, oil temperature,
cleanliness monitoring system, low pressure warning devices and instruments and so on.
2.6.2.1 The rated voltage of the machine system is 12V, negative earth, single-wire line , see the
electrical wiring diagram (Figure 9) for more information about wire connection. Adopts
maintenance-free battery (N120 120Ah), primarily as power supply of starter motor. In normal working
hours, the auxiliary generator of the diesel engine charges the battery. If the charge can not be boosted
or can not be charged properly for any reason, do disassemble the battery from the machine for
charging.
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CHAPTER III MACHINE OPERATION
Do charge the battery following the regulations. Please charge once every three months or start
the engine once every other time, when the machine is parked for long time. Run the machine for some
time to charge the battery fully. After each operation, disconnect the power switch to prevent leakage.
2.6.4 NOTES
2.6.4.1 Electrical lock on the instrument panel should be connected before machine starting and
turned off after engine stopping.
2.6.4.2 After a normal start of diesel engine, do not turn off power switch to avoid the idling voltage
of the generator rising up suddenly , this may burn electrical equipment .
2.6.4.3 Turning off the electrical lock and main switch can avoid accidents under the following
situations.
1.When the starting motor adhesion contacts and high current is out of control.
2.Repairing cause the circuit ground tapping.
4.Remember to turn off the power when parking to kee personnels and the machine safe. At the
end of the operation every time, disconnect the power switch to prevent leakage.
Table 5
Battery 120Ah
Refer to the maintenance part." maintenance and precautions of Batteries on the skid steer loader " .
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CHAPTER III MACHINE OPERATION
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CHAPTER III MACHINE OPERATION
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CHAPTER III MACHINE OPERATION
Figure 10 INSTRUMENT
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CHAPTER III MACHINE OPERATION
3.2.1.1 Diesel of skid steer loader should be pure and be deposited for at least 72 hours , diesel
No. should meet the stated quality requirements.
3.2.1.2 A regular maintenance and lubrication foe skid steer loader should be performed following
the regulation.
3.2.1.3 After starting the engine, run the engine at an idle speed. start traveling until the water
temperature reaches 55 ℃ .
℃
3.2.1.4 The temperature is generally below 10 , electrically warm up the engine before the
engine start-up. Turn on the start gear for 10 seconds, if the engine can't be started , restart the engine
after 30 seconds.
℃
3.2.1.5 Full-load operation when the diesel engine water temperature higher than 55 , the oil
temperature is higher than 45 ℃ . The engine operation water temperature and oil temperature should
℃
not exceed 95 . The overloaded operation water temperature and oil temperature exceeds the
allowable value should stop the engine for cooling.
3.2.1.6 Does not allow the bucket to the highest position carrying materials, delivery of materials
should keep the hinge of the boom away from ground about 400 mm, in order to ensure stable travel.
3.2.1.7 The diesel engine power is decreased with the increase of altitude, ambient temperature
and relative temperature. so the user must use the loader adapt to the local environment, according to
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CHAPTER III MACHINE OPERATION
the diesel engines maintenance instruction requested correct power adjusts its actual power, to ensure
the proper use of Skid Steer Loader.
3.2.1.8 In order to improve the hot and cold regions loader operator comfort, equipped with air
conditioner on request.
3.2.1.9 In cold weather, do not use heater when the engine starts, wait for the engine is running
(warm), and the water temperature above 78 ℃
then turn on the heater switch so as not to affect the
heating effect.
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CHAPTER III MACHINE OPERATION
1. Suitable weight adjustment: according to his weight, the user can turn the weight adjustment
knob, turning the knob clockwise to increase the suitable weight, and turning knob counterclockwise to
decrease the suitable weight. Turn the handle to reach the most suitable weight .
Note: Both front-and-rear adjustment and backrest angle adjustment should move the handle in
place. Make sure that the machenism is completely out of control, and then perform the
adjustment. After ending the performance, moves the handle back to the position to ensure that
all parts are locked and reliable.
2. The operator should adjust the length of the safety belt before using the safety belt.ensure the
protective function and comfort of the safety belt.
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CHAPTER III MACHINE OPERATION
3. Before using the safety belt, inspect whether the lock of the safety belt can function normally or
not.
3.2.5.2 Security rod: Security bar is very important for operator, when a sudden stop during the
moving, it will protect the driver from the forward force and keep the driver safely on the seat. At the
same time can be used as handrail.
3.2.5.3 When the safety rod lifts, the sensor of the safety rod is cut off, once the safety brake is
locked, the whole hydraulic and driving system will be locked, so the bucket and booms can not work
anymore. Lowered the safety lever to the horizontal position, the sensor is connected, so the braking
light of the electrical meter will be turned off , and then the driving and boom hydraulic system will
function again, in order to operate the machine normally. (As shown below)
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CHAPTER III MACHINE OPERATION
3.2.6.1 Left Control Handle: The left joystick controls the left driving system and the boom, its
position and the corresponding functions are in the following table.
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CHAPTER III MACHINE OPERATION
Direction Function
Front Left wheel forward
Rear Left wheel backward
Left Boom upper
Right Boom lower
3.2.6.2 The right control lever: the right joystick controls the right driving system and the bucket .its
position and the corresponding functions are shown in the following table.
Direction Function
Front Right wheel forward
Rear Right wheel backward
Left Put bucket
Right Roll back bucket
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CHAPTER III MACHINE OPERATION
1. Remove the rubber rectangle band, the end of rectangle band is near the top left corner in the rear
window ( as shown Figure 17 );
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CHAPTER III MACHINE OPERATION
Move the Handle throttle control forward to increase the engine speed, move backward to reduce the
engine speed. Usually to use the handle throttle control, the throttle reaches maximum position, the
hydraulic pump in front of engine can provide the maximum hydraulic flow, thereby increasing the driving,
loading and reflecting speed.
Step on the foot throttle control to increase the engine speed, release the pedal to decrease the
engine speed. Foot throttle control is used for the maximum control of the situation, such as hard
conditions in the flexible controlling requirements. Meanwhile the handle throttle control should be at the
position of the minimum engine speed.
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CHAPTER III MACHINE OPERATION
Figure 20 AUXILIARY HYDRAULIC CONTROL FOR THE ATTACHMENTS AND FOOT THROTTLE
DEVICE
3.2.9.1 Auxiliary hydraulic control: the pedal controls the hydraulic flow direction for the front
attatchments (hydraulic quick dis-connect joint on the left arm), step the pedal on the left or right side
depending on the hydraulic flow direction required. Release the pedal, the pedal will return to the closed
position.
3.2.9.2 If the accessories perform oppositely with the driver's operation, should swap two hydraulic
pipes with each other.
3.2.9.3 If the accessories requires continuous hydraulic power, steping on the pedal to the
required position, meanwhile moving the control valve tab in the right direction. The pedals can be fixed
as two sides for the continuous power supply.
3.2.9.4 Release the system pressure before installing or removing attachments. Turn off the
engine, and depress the auxiliary hydraulic pedal repeatedly until releasing the pressure.
44
CHAPTER III MACHINE OPERATION
3.3.1
ENGINE
3.3.1.1 Cooling water temperature ( ℃)
.
1 Suitable inlet water temperature 45 ~ 60
2.Suitable outlet water temperature 60 ~ 90
When the rated voltage of system is 12V and the voltage indicator is within the range 12V ~ 14V,
that means the power supply system is normal. When the pressure is less than 12V or above 14V,
please check the relative system or equipment.
Be sure to follow the instructions to select oil products of diesel engine oil, diesel, hydraulic oil.
Although the price of counterfeit oil is cheap, but it will invalidate early and lose the function, induced
Skid Steer Loader failed, causing inside damage of the machine, and difficult to work, leaving a huge
security risk, or even result in personal injury or property Loss! (See Table 6)
45
CHAPTER III MACHINE OPERATION
TABLE 6
Quantum L ()
Category Type
(Rreference) application remark
、
-10# -35# light diesel oil used
Fuel 0# light diesel oil 88 Dynamic system in north winter or export to
cold area
HV46#low-temperature
3.4.1.2 Fuel: When the fuel oil level reaches the middle position of oil scale, should consider
refueling. When the fuel oil level below the middle position, must refueling immediately, or may result in
engine stalling and other problems.
3.4.1.3 Hydraulic oil: Refueling at least above the middle position of the oil leveler. When refueling
hydraulic oil for the first time, level the bucket to the ground after one circulation of the hydraulic
preformance, and the oil level should be higher than the middle position of the oil leveler.
3.4.2
COOLING WATER
.
1 General appropriate application of antifreeze.Commonly used in antifreeze formulations as
follow:
3.4.2.1 To ensure the engine cooling system work in different working conditions, under different
circumstances, recommended to use Lonking dedicated coolant
46
CHAPTER III MACHINE OPERATION
3.5.3.2 Check the condition of the lighting equipment,indicator light, horn, wiper, oil scale
The operator should preheat the engine electrically in the cold temperature.
(1) Turn the electric key switch to the "system power". Press down the preheating control switch
in order to supply the power to the engine preheating plug (the preheating time is 5 seconds every time,
after 5 seconds preheating light in the instrument is off).
The standard preheating time under the different temperatures is shown in the following table. After
preheating the engine, don't need this operation.
47
CHAPTER III MACHINE OPERATION
Table 7
℃(50°F)
Above 10 No need
10℃(50°F)~-5℃(23°F) About 5S
(2) When the preheating light is off, turn the electric key to the "start" position and the engine
starts up.
(If the engine can not starts after10S, shut down the engine for 5~30S. Then repeat (1)and (2)
process again.)
3.5.4.2 Check the oil level and clean of the engine sump,if the oil level is too high and thinning,find
out the reason and excluded it.
3.5.4.3 Check the oil pipe,water pipe and the attachments without leakage.
3.5.4.4 Check the hydraulic pump fixed and sealed, and whether overheating.
3.5.4.8 When the temperature is below 5 ℃, the cooling water should be released, if the antifreeze
is already filled, do not release.
3.5.4.10 Cleaning off dirt and debris of machine and inside bucket.
3.6.1.2 Please check the brake is valid or not before starting the machine.
48
CHAPTER III MACHINE OPERATION
3.6.1.3 Please adjust, fix and lock the seat, fasten seat belts before starting the machine.
3.6.1.4 Put down the safety lever. only when lowering the safety lever, the machine could start.
3.6.1.5 warm up the machine at an idle speed after the machine starts. Until water outlet
℃ ℃
temperature of the diesel reaches 55 and the engine oil temperature reaches 45 , do not operate the
machine with full load.
3.6.2 Park the machine on level ground and place a pad in front and rear tires to
prevent the machine sliding. If the machine park on the lamp for a while, put a more
stable wedge under the wheel in order to avoid the machine sliding.
3.6.3 parking the machine
3.6.3.1 If the machine has been operated with full load, let the engine run at an idle speed for 5
minutes with empty load in order to cool down every part of the engine.
3.6.3.2 Turn the key of the electric lock to the "system power" position (as shown in figure 11),
the engine shuts down normally.
3.6.3.3 Please lower the lift arm to the ground before leaving the machine.
3.6.3.4 Remove the key, lift the safety bar to lock loading control lever, release the seat belt, use
the handrails and pedals to leave the cab.
Warning: Any part of your body can not leave the cab during the operation. Before you leave the
cab, remember to lower the bucket to the ground, and turn off the engine. If you do not comply with these
steps, may result in casualties.
Warning: The bucket should be placed as low as possible during the loading operation, so that
the driver vision is more wide, and better to keep the stability of the machine. Operation on the rough
ground and the bucket is full loaded should slow down the machine. If the speed is too high, may lose
control or even overturn.
Warning: If the bucket is uplift and the driver is not in the cab may cause casualties. so be sure to
lower the bucket to the ground before leaving the cab , or locking arm lock pins and turn off the engine.
Warning: Do not turning with arm lifting high, or may cause overturn.
1 、 Lower the lift arm at the lowest and run the engine at the maximum speed, then shovel the material
at the speed of 2.5km/h.(as shown in the figure 21)
49
CHAPTER III MACHINE OPERATION
50
CHAPTER III MACHINE OPERATION
Figure 22 TRANSPORTATION
4 、Arrived at the designated location, rising boom, dumping, all operations are stable.
51
CHAPTER III MACHINE OPERATION
Warning: The cutting edge and teeth of bucket may run into frozen or buried objects such as rocks
while shoveling. Check and mark before the operation, keep the bucket flat with the ground, avoiding
obstacles, and also not too fast.
Warning: Operating on the hillside is more dangerous, and should pay attention to the ground
situation, rain, snow, ice, loose gravel or soft soil, making the situation complicated. Make accurate
judgments about the safety of operation on hillside or slope.
Warning: Must be very careful while operating on the hillside, do not let the Skid Steer Loader to
be close to the mountain edge, the loader may easily tip over.
If the bucket is full with material, should be positive upgrading the slope and reverse downgrading
、
the slope, to avoid tiping accident.(as shown in figure 23 24)
52
CHAPTER III MACHINE OPERATION
1. If the bucket is empty, should be positive downgrading the slope and reverse upgrading the slope.(as
shown in the figure 25,26)
53
CHAPTER III MACHINE OPERATION
54
CHAPTER IV MAINTENANCE SECTION
55
CHAPTER IV MAINTENANCE SECTION
4.1.1.1 The running-in period for a new loader is 100 hours, the forward gear 2 and reverse gear 2
shall be arranged for running-in respectively.
4.1.1.2 During the running-in period, the load on the loader may not exceed 70% of the rated load.
4.1.1.3 Pay attention to the lubrication of the loader, and replace or add lubricating grease in
accordance with the specified interval.
4.1.1.4 Pay attention to the temperature of wheel hub and wheel case, and identify and eliminate
the cause if overheating is found.
4.1.1.5 Inspect whether the bolts and nuts of all parts are properly tightened up.
4.1.1.6 During the running-in period, it is advised to work with bulk materials only, and the working
may not be carried out too violently.
4.1.1.7 After the cold engine is started up, make it run at idle speed for 10 minutes first.
4.1.2.3 Inspect the tension of fan belt, pay attention to whether the power supply from generator to
accumulator is normal or not.
4.1.2.4 Inspect the sealing property of hydraulic system and brake system.
4.1.2.5 Inspect the connection of each control handle and throttle lever.
4.1.2.6 Inspect the temperature and connection of each part of electrical systems, the power supply
to engine, the conditions and lighting devices and turn lamps.
4.1.4 All the inspect should be done under the condition of stopping the machine in the wide,
level and clean place! Flat the control bucket before stopping the machine. Cut off the power
before inspecting (switch the power on if necessary), pull the key out and then hang nameplate
"no operation" on the starting switch or operational lever! Before adding and draining oil ,
waiting to cool the oil temperature and then loose the seal cover slowly, release the pressure,
56
CHAPTER IV MAINTENANCE SECTION
preventing scald before take it down! To loose and tighten the joint of pipes should be used with
two spanners, making sure the weldment of pipe joint do not be splited for the torsion force.
4.1.5.2 Although the cost of counterfeit oil is low, it will expire and be disfunction early, leading to
the damages of loader, thus affect its operation and hide a serious trouble, even leading to personal
injury.
4.1.6.2 The content of impurity, paraffin, water and sulfid of irregular diesel exceed its usual
content, and the thermal is not enough leading to the faults such as piece of injectorting pump eroded
and worn early, nozzle plugged, leading to black smoke,carbonization, lacking power.
4.1.6.3 Under the condition of high-temperature and high-pressure, the irregular hydraulic oil is
glued early and aging, reducing its driving efficiency,plugging pipe circuit and valve circuit, damaging
seal components, reducing and even losing its supporting ability and lubrication, rusting and damaging
hydraulic cylinder, leading to operation system and working implement system do not work normally.
4.1.6.4 Please pay special attention : although oil liquid products are both regular, the congener
products of different brands is forbidden to use. As a result products of different brands is still different in
its compositions, otherwise chemical reaction will happen, leading to losing its efficiency. As a result,
select the special or appointed oil liquid products of lonking.
4.1.6.5 Please ensure the purity of the oil liquid, the damage of the machine caused by the
unqualified oil will not be covered by our warranty.
4.1.7 The working surroundings for skid steer loader is serious which large dust consistency,
some oil circuit, circuit easy to polluted or plugged, and influence the normal working of loader.
Please often inspect oil circuit,circuit to make sure the normal seal and through. Pay special
attention to a few parts: the air filter and pipe system of the diesel engine, the clearance of the oil
cooler ductpieces, air circuit of compressor, hydraulic oil filter, the seal parts of control flexible
shaft, the damping hole of oil pressure meter , instrument panel, electrical connecting plugs and
so on.
57
CHAPTER IV MAINTENANCE SECTION
4.1.8.2 Select original parts and components
.
1 The same as oil liquid, the original parts and components are the guarantee of skid steer loader.
it will cost much for the counterfeit.
.
2 You can get lonking special or designated oil, liquid products and original parts and components
from Lonking spare parts company or commission business in various places conveniently.
1. In the cold weather (the surrounding temperature below freezing point temperature), when
antifreeze is not added to the coolant and the truck need to transport for long distance or shut down,
open the drain switch of diesel engine body, water pump, engine oil cooler, drain switch of radiator
launching room to empty the water preventing freezing.
2. If there is any engine oil in the cooling fluid or any water in the oil sump, should inspect the
machine, replace all of the oil and the water and refill them.
4.3.1.2 Clean the connection parts of the top with clothes or brush without water,after mounting
the battery, to protect the connection bolts covering vaseline.
4.3.1.3 In the normal working of integrated machines, if stop working in day time or at night, make
sure that all electrical devices turned off normally.
4.3.1.4 During the usual working, the time of using electrical dynamo every time should not be too
long(3-5s), start continually, the interval time should be 10-15s, the times is not too much, three times to
start to run unsuccessfully, find the causes, remove the faults and then start again, prevent leading to
58
CHAPTER IV MAINTENANCE SECTION
draining time of large current is too long which lead to the damage of pole plate of battery inside.
4.3.2.2 Supply the battery every three months in stock, or start to run the engine every some
days,and charge the accumulator enough after running for a while.
4.3.2.3 For the battery that losing power longer than half one year, if charging not enough, it will
affect its effect directly, even lead to failure of the battery.
4.3.2.4 Inspect the conditions of accumulator when the truck on sales,the accumulator that losing
power (voltage is lower than 12.5V) must be charged enough (above 12.6V)and then to the users,
otherwise, it will affect its usage for the users.
4.3.3.3 Voltage of drain power:5 times draining (or the current draining according to
GB/T5008.2-2005 regulation), voltage in 5 seconds is higher than 9V.
4.3.4.2 Constant pressure charger: connect the battery losing power and the charger correctly
(red is anode and black is cathode), press the charging button, charge with 14.4 V or 16V button, the
max.charging current not beyond 25A. Finished charging and then the current shows 0.00 stopping
automatically.
4.3.4.3 Direct current charger +constant pressure charger: battery with serious losing power (the
voltage is lower than 10V) such as constant pressure charger do not identify charging: first charge for 3
to 8 hours with current equivalent to one tenth of rated power of battery 20 hours with adjustable direct
current charger, and then continue to supply the power with constant pressure charger to stopping
automatically.
4.3.5.2 Stop charging if there are phenomena such as overheating of battery, peculiar smell or
acid injectorting.
59
CHAPTER IV MAINTENANCE SECTION
4.3.5.3 Gas will be produced in the process of charging, inspect whether the venthole on both
sides of the top cover of battery is draughty or not. Make sure the venthole draughty to prevent the
battery explode.
4.3.5.4 No charging battery whose outside case is misshapen as a result of overcharging or its
electrolyte dry.
4.3.5.5 While charging the battery, the working personnel should pay attention to the safety.
4.3.6.2 After identifying the battery is perfect, clean it and make sure that the appearance of the
battery is clean and the venthole is straightway.
4.3.8.2 Skid belt, overweight lift, polluting end pillar and extraordinary load lead to power loss of
accumulator or serious drain for a long time.
4.3.8.3 The over low charging voltage and the accumulator with not enough charged lead to
sulfuration of the pole plate.
4.3.8.4 The high current of charging voltage, over charging the battery lead to serious loss of
water which make the weight lighter.
4.3.8.5 Over charging and over draining lead to the damage of battery.
4.3.8.6 When mounting, connecting anode and cathode contrarily, or damaging the end pillar,
case body,short circuit to the battery involuntary and so on.
4.4 LUBRICATION
4.4.1 Lubricating correctly can reduce frication resistance and worn of parts, ensuring the normal
operation of the machine and then prolong the service life.
4.4.1.1 Precautions when oil filling:
1.Clean oil filling container and parts oil filling: replace the butter nozzle if it is damaged.
2.Stop the machine to the level position when inspecting the oil.
60
CHAPTER IV MAINTENANCE SECTION
TABLE 8
Adding oil
quantity(litre)
Type Name Application parts Note
(reference
value)
Details see to manual of the
diesel engine(CF5W/40 suitable for
Diesel oil CF15W/40 ≥20 Diesel
winter in the north or exported to
the cold area)
Low temperature and pressure
Lubricating 2# universal lithium Bearing and lithium grease suitable for winter in
4kg.
grease lubricating grease articulated parts the north or exported to the cold
area.
After working 50 hours, fill lubricating grease for the above-mentioned parts. Please pay attention to
the working conditions and filling way.
4.4.1.4 The maintenance cycle regulated in this manual is determined by the working hours timer
or calendar. The maintaining work should be ranged according to the time cycle. The maintenance cycle
of the loader working under the serious surrounding should be shorten combined with the regular cycle.
4.4.1.5 Combined the inspect and maintenance before using with that after using every day.
4.4.1.6 See to 《user manual of diesel engine》for the maintenance of the diesel engine.
61
CHAPTER IV MAINTENANCE SECTION
4.4.1.7 Regular maintenance should be done in daily , 50,100, 250, 500, 1000, 2000 hours.
TABLE 9
62
CHAPTER IV MAINTENANCE SECTION
.
4 Inspect the oil level in the oil tank of the chain wheel.
.
5 Clean the cooler.
.
6 Inspect whether the fan leather belt is normal or not.
.
7 Inspect the tightness torque of the hydraulic motor and the nuts for the
hub assembly
Besides the 250 hours maintenance for the machine, follow work needs to
do.
.
1 Replace the filter core and new oil.
EVERY500 HOURS .
2 Inspect whether tighten the mounting bolts or not.
Besides the 500 hours maintenance for the machine, follow work needs to
do.
1. Replace the hydraulic oil return filter core, wash and replace the
EVERY1000 HOURS
hydraulic oil tank.
2. Wash the diesel oil tank.
3. Replace the oil in the oil tank of the chain wheel.
Besides the 1000 hours maintenance for the machine, follow work needs
to do.
1. Check whether weldments for every part of the working device, frame
EVERY2000 HOURS
and the fixation of the bolts and nuts.
2. Check and repair the diesel according to the manual of the diesel
engine.
63
CHAPTER V HOISTINGAND TRANSPORTATION SECUTING
64
CHAPTER V HOISTINGAND TRANSPORTATION SECUTING
5.1 HOISTING AND TRANSPORTATION OF SKID LOADER
5.1.1 When loader needs hoisting, the lifting hook can be used to catch the ear-plate available on
the machine body. Before hoisting, adjust the length of ropes to keep the level of the machine. When
hoisting, keep the lifting hook stable, better with the special tools lest steel ropes hit the machine hood
and the cab. (see the figure 27)
5.1.2 When long-distance transporting of skid loader with flat board or similar flat board,
the loader needs securing by iron chain prevent from shaking and flopping. In order to prevent
the machine from moving forward and backward on the flat board, the front and the back wheels
are fastened by triangle metal and then tie with steel wire tightly.
5.1.3 The transportation of integrated machine should accord with the local regulation of
transportation sector, if there is no special, the loader parts and components are not dismantled
in the process of transportation.
5.1.4 NOTE: It is necessary to check whether the truck or the trailer is safe
enough or not before the loading . Park the trailer or the truck on the ground
65
CHAPTER V HOISTINGAND TRANSPORTATION SECUTING
smoothly. Make sure there is enough bearing capacity for the trailer, the truck and
the handling platform to support the machine. Check whether there are some oil
contaminants , ice blocks on the trailer, the truck and the handling platform. Clean
them in time. When drive the machine up and down slowly, do not bias from the truck
to avoid overturning the machine.
5.1.5 Load the machine onto the transporting vehicle as the follow steps. See
the follow figure:
1. Place some wood wedges under the wheels of the truck and the trailer;
2. Secure the ramps on the vehicle, max. angle of obliquity is 15°. Both ramps must
parallel.
5.1.6 After driving the machine onto the transporting vehicle, to ensure the
safety during the transportation,it is necessary to protect the machine as the follow
steps. As shown in follow figure:
1. lower the skid steer loader onto the board of the truck. Shut down the engine and move
66
CHAPTER V HOISTINGAND TRANSPORTATION SECUTING
the key.
3. Bind the front and rear shackles of the machine with the rope.
4. Record the height of the skid steer loader and the truck/trailer. Write down and stick
inside the cab of the truck, so that decide the traffic ability of the truck correctly when travelling
through the tunnel or meeting the high cable.
67
CHAPTER VI COMMON FAULTS AND TROUBLESHOOTING
68
CHAPTER VI COMMON FAULTS AND TROUBLESHOOTING
Electrical System
The sound of
Alternator fault Replace
generator is abnormal
Drive system
69
CHAPTER VI COMMON FAULTS AND TROUBLESHOOTING
Oil pressure alarm Oil level is too low Fuel
lamp light still when Oil filter plug Replace filter
the engine run at the Oil not suitable for Replace
high speed. surroundings
Coolant level is too low Fill the coolant.
Radiator leaks Repair
Fan belt is loosing Inspect belt tensility and
adjust
There are muds and Replace coolant and clean
limes in the cooling system. cooling system
There is steam from Vane of radiator worn out Repair or clean
the venthole of the or plugged.
radiator. The water Temperature adjuster Replace
temperature indicator fault
of the engine is always Cover of radiator loosen Tighten restructuring cover
on. or worn out. or replace components
operating at the high
altitude
Thermostat fault Replace
Instruments fault replace
No fuel Fuel
Start the engine There is air in fuel system Discharge with pipe
difficultly Leakage exists in the air Adjust the clearance
inlet and outlet between the air inlet and outlet
Colour of the exhaust Oil is too much Remove some oil
is white or light blue. Fuel is not suitable Replace correct fuel oil
Air filter fault Clean or replace
The exhaust inclined
injector fault Replace
to black sometimes.
Compressing fault Adjust valve clearance
injector fault Replace
The sound of burning the fuel cetane is too little Replace the correct fuel.
is similar to breathe or Discharge muffle Replace
the burning sound is damages inside.
abnormal (burning or Valve clearance is too Adjust the valve clearance.
mechanical parts ) wide.
Travel system
Oil level is too low Fuel
Suction filter plug Replace
Machine move neither Coupling fault Replace coupling
forward nor backward Max.pressure of valve is Clean or replace valve
not correct or valve is dirty
Hydraulic pipe is remount
70
CHAPTER VI COMMON FAULTS AND TROUBLESHOOTING
obstructed
Traveling motor fault Repair or replace
The brake light is always Inspect the seat switch and
on safety rod switch.
Oil level is too low Fuel
There is spume. Use pulsive oil
Oil suction pipe is too Inspect and remove leak
Machine moves
small
slowly(with abnormal
Suction filter plug Assemble again
sound)
Traveling motor fault Repair or replace
Parking brake indicator is Inspect the switch of the
on. seat and the safety rod.
The engine do not reach Replace diesel filter and
to max.speed. inspect injector pump
Donkey fuel pump fault Repair or replace
(gear pump)
Traction force in both The max.speed setting of Restart
directions is not valve is incorrect.
enough. Setting of release valve is Restart
not corrected
Oil overheating Inspect oil level and clean
radiator
Traveling motor fault Repair or replace
Traction force in only Engine overload Reducing load
one direction is not The pressure setting in Adjusting valve
enough. this direction is incorrect.
Oil level is too low Fuel
Radiator is plugged or Inspect, replace if
dirty. necessary
Oil is not suitable Replace correct oil
Oil suction pip is too small Inspect and remove leak
Max.pressure of adjusting
Oil overheating
valve Inspect mounting, repair or
Traveling motor fault replace
The setting of release is Repair or replace
too much. Adjusting valve
Traveling motor fault
Repair or replace
Filter is pluged Replace
The engine do not reach Replace diesel filter and
The machine can not
to the max.speed. inspect the injector pump
reach at the
Travelling pump fault. Inspect, repair or replace
max.speed.
The setting of the oil relief Adjust
valve is incorrect.
71
CHAPTER VI COMMON FAULTS AND TROUBLESHOOTING
The power of engine is Inspect whether fuel filter,
The machine reduced. injector pump and valve plug or
accelerate slowly. The setting of releasing not
pressure is incorrect. Adjust to rated value
Seal ring is damaged. Replace
The pressure of pump Discharging is plugged or
Oil leaked from engine
case is too high. pipe is damaged.
driving shaft or pump.
The pressure setting of Inspect and restore
distributary valve is too high.
Others
Use up fuel oil Add fuel oil and discharge
Use up fuel oil before start to run the engine
again.
Motor fault Repair or replace
The battery is used up
Use up battery when Charge the battery
completely.
stopping the engine
Don't come out by itself Use the proper metal cable
Machine sink into the
through the hook to pull the
mud
machine.
6.1.2 For the above-mentioned faults, please contact out customer service to resolve them
efficiently, do not dismantle them or connect cross link.
6.2.2 The starting time of all machines is too long under the condition of not starting .
6.2.4.3 The loosing of driving belt of engine lead to charge the accumulator abnormally and the
accumulator with black electrical eyes, even do not start to run the machine.
6.2.6 hint: as a result of the above-mentioned causes leading to battery losing power, accumulator is
returned to the normal working condition through the correct power supply
72
CHAPTER VI COMMON FAULTS AND TROUBLESHOOTING
6.3.2 The accumulator with the end pillar broke can not be supplied, find the causes and then replace.
6.3.3 Accumulator with the white electrical eyes, make sure that whether caused by the jam of the
green ball inside the electrical eye or not, if that , could shake the ball lightly. Otherwise the white
electrical eyes caused by the low level of the accumulate electrolyte, or it is dry, displace the accumulate.
6.3.4 The end pillar covered with skin oxidation, before supplying, clean it and remove the skin
oxidation.
6.4.2 In the process of charging and testing the accumulator, the combination of oxygen and hydrogen
﹪
is discharged from the venthole, when the consistency of hydrogen in the air beyond 4 , exploding will
happened with fire, sparkle or high-heating; as a result, during the process of charging, it should be
ventilated and no smoking preventing sparkle and fire.
6.4.3 Accumulator should be charged in the normal temperature, and please wear the safety glasses
during the recharging operation.
6.4.4 Keep the accumulator on the flat ground, and the incline is less than 40°.
6.4.5 In the process of accumulator charging, connect the positive (+) of generator to the positive (+) of
accumulator, and then connect the negative (-) of generator to the negative (-) of accumulator, avoid
charge reversely.
6.4.6 During charging the accumulator, we should keep the temperature of electrolyte less than 45°C,
in order to avoid the electrolyte spouting out caused by high temperature.
At the end of recharging, the oxygen and hydrogen produced by electrolyte leads to the loss of water,
and the higher of the charge voltage is, the more loss of water. As the free-maintenance accumulator
does not need to watering, so we recommend recharging with constant voltage instead of constant
current.
73
APPENDIX REFERENCE TABLE OF DENSITY OF COMMON MATERIALS
74
APPENDIX REFERENCE TABLE OF DENSITY OF COMMON MATERIALS
Fragmentation 1550
12 Limestone
A solid block 2600
13 Slag 1760-2100
Chunky 1650
14 Granite
Overall 2800
15 Hematite 2460
16 Magnetite 2780
75