Rotary Lawn Mower: Owner's Manual
Rotary Lawn Mower: Owner's Manual
Model No.
944.362160
CAUTION:
Read and follow all
Safety Rules and Instructions
before operating this equipment
448463 01.20.12 BY Printed in U.S.A. Sears Canada, Inc., Toronto, Ontario M5B 2B8
TABLE OF CONTENTS SERVICE NOTES
Safety Rules ......................................... 2-3 Maintenance ..................................... 11-13
Warranty ............................................... 4-5 Service and Adjustments ....................... 14
Product Specifications ........................... 5 Storage ............................................. 15-16
Assembly/Pre-Operation ......................... 6 Troubleshooting ................................ 16-17
Operation ............................................ 7-10 Repair Parts...................................... 18-21
Maintenance Schedule ...........................11 Sears Service ..........................Back Cover
SAFETY RULES
IMPORTANT: This cutting machine is • Do not pull mower backwards unless
capable of amputating hands and feet and absolutely necessary. Always look down
throwing objects. Failure to observe the and behind before and while moving
following safety instructions could result in backwards.
serious injury or death. • Never direct discharged material toward
anyone. Avoid discharging material
Look for this symbol to point out im-
against a wall or obstruction. Material
portant safety precautions. It means
may richochet back toward the opera-
CAUTION!!! BECOME ALERT!!!
tor. Stop the blade when crossing gravel
YOUR SAFETY IS INVOLVED.
surfaces.
WARNING: In order to prevent ac-
• Do not operate the mower without proper
cidental starting when setting up, trans-
guards, plates, grass catcher or other
porting, adjusting or making repairs,
safety protective devices in place.
always disconnect spark plug wire and
• See manufacturer’s instructions for proper
place wire where it cannot come in contact
operation and installation of accessories.
with plug.
Only use accessories approved by the
CAUTION: Muffler and other engine manufacturer.
parts become extremely hot during • Stop the blade(s) when crossing gravel
operation and remain hot after engine drives, walks, or roads.
has stopped. To avoid severe burns on • Stop the engine (motor) whenever you
contact, stay away from these areas. leave the equipment, before cleaning the
mower or unclogging the chute.
• Shut the engine (motor) off and wait until
the blade comes to complete stop before
removing grass catcher.
• Mow only in daylight or good artificial
light.
I. GENERAL OPERATION • Do not operate the machine while under
• Read, understand, and follow all instruc- the influence of alcohol or drugs.
tions on the machine and in the manual(s) • Never operate machine in wet grass. Al-
before starting. Be thoroughly familiar with ways be sure of your footing: keep a firm
the controls and the proper use of the ma- hold on the handle; walk, never run.
chine before starting. • Disengage the self-propelled mechanism
• Do not put hands or feet near or under or drive clutch on mowers so equipped
rotating parts. Keep clear of the discharge before starting the engine.
opening at all times. • If the equipment should start to vibrate
• Only allow responsible individuals, who abnormally, stop the engine (motor) and
are familiar with the instructions, to oper- check immediately for the cause. Vibration
ate the machine. is generally a warning of trouble.
• Clear the area of objects such as rocks, • Always wear safety goggles or safety
toys, wire, bones, sticks, etc., which could glasses with side shields when operating
be picked up and thrown by blade. mower.
• Be sure the area is clear of other people
before mowing. Stop machine if anyone II. SLOPE OPERATION
enters the area. Slopes are a major factor related to slip & fall
• Do not operate the mower when barefoot accidents which can result in severe injury.
or wearing open sandals. Always wear All slopes require extra caution. If you feel
substantial foot wear. uneasy on a slope, do not mow it.
2 23
DO: • Never fill containers inside a vehicle, on
SERVICE NOTES • Mow across the face of slopes: never up a truck or trailer bed with a plastic liner.
and down. Exercise extreme caution when Always place containers on the ground
changing direction on slopes. away from your vehicle before filling.
• Remove obstacles such as rocks, tree • Remove gas-powered equipment from the
limbs, etc. truck or trailer and refuel it on the ground. If
• Watch for holes, ruts, or bumps. Tall grass this is not possible, then refuel such equip-
can hide obstacles. ment with a portable container, rather than
from a gasoline dispenser nozzle.
DO NOT: • Keep the nozzle in contact with the rim
• Do not trim near drop-offs, ditches or of the fuel tank or container opening at
embankments. The operator could lose all times until fueling is complete. Do not
footing or balance. use a nozzle lock-open device.
• Do not trim excessively steep slopes. • If fuel is spilled on clothing, change clothing
• Do not mow on wet grass. Reduced footing immediately.
could cause slipping. • Never overfill fuel tank. Replace gas cap
and tighten securely.
III. CHILDREN
Tragic accidents can occur if the operator is V. GENERAL SERVICE
not alert to the presence of children. Children • Never run machine inside a closed area.
are often attracted to the machine and the • Never make adjustments or repairs with
mowing activity. Never assume that children the engine (motor) running. Disconnect
will remain where you last saw them. the spark plug wire, and keep the wire
• Keep children out of the trimming area away from the plug to prevent accidental
and under the watchful care of another starting.
responsible adult. • Keep nuts and bolts, especially blade at-
• Be alert and turn machine off if children tachment bolts, tight and keep equipment
enter the area. in good condition.
• Before and while walking backwards, look • Never tamper with safety devices. Check
behind and down for small children. their proper operation regularly.
• Never allow children to operate ma- • Keep machine free of grass, leaves, or
chine. other debris build-up. Clean oil or fuel spill-
• Use extra care when approaching blind age. Allow machine to cool before storing.
corners, shrubs, trees, or other objects • Stop and inspect the equipment if you
that may obscure vision. strike an object. Repair, if necessary,
before restarting.
IV. SAFE HANDLING OF GASOLINE • Never attempt to make wheel height ad-
Use extreme care in handling gasoline. justments while the engine is running.
Gasoline is extremely flammable and the • Grass catcher components are subject to
vapors are explosive. wear, damage, and deterioration, which
• Extinguish all cigarettes, cigars, pipes and could expose moving parts or allow objects
other sources of ignition. to be thrown. Frequently check compo-
• Use only an approved container. nents and replace with manufacturer’s
• Never remove gas cap or add fuel with recommended parts, when necessary.
the engine running. Allow engine to cool • Mower blades are sharp and can cut. Wrap
before refueling. the blade(s) or wear gloves, and use extra
• Never refuel the machine indoors. caution when servicing them.
• Never store the machine or fuel container • Do not change the engine governor setting
where there is an open flame, spark or pilot or overspeed the engine.
light such as a water heater or on other • Maintain or replace safety and instruction
appliances. labels, as necessary.
WARNING: This lawn mower is equipped with an internal combustion engine and
should not be used on or near any unimproved forest-covered, brush-covered or
grass-covered land unless the engine’s exhaust system is equipped with a spark
arrester meeting applicable local or state laws (if any). If a spark arrester is used, it
should be maintained in effective working order by the operator.
A spark arrester for the muffler is available through your nearest Sears Service Cen-
tre (See the REPAIR PARTS section of this manual).
22 3
RATO 4-CYCLE ENGINE MODEL NUMBER RV140-1
WARRANTY
GENERAL: Craftsman products are warranted to be free from defects in materials
or workmanship for a specific time period as set-out below (the “Warranty Period”).
Warranties extend to the original purchaser of a Craftsman product only. Purchases
made through an online auction or through any website other than www.sears.ca are
excluded. The relevant Warranty Period commences on the original date of purchase.
Within this period, Sears Canada, Inc. will, at its sole option, repair or replace any products
or components which fail in normal use. Such repairs or replacement will be made at no
charge to the customer for parts or labor, provided that the customer shall be responsible KEY PART
for any transportation cost. NO. NO. QTY. DESCRIPTION
EXCLUSIONS: This warranty does not cover failures due to normal wear, abuse, misuse, 1 532 43 75-56 1 Cover, Cylinder Head
neglect (including but not limited to the use of stale fuel, dirt, abrasives, moisture, rust, 2 532 43 75-57 1 Gasket, Cylinder Head
corrosion, or any adverse reaction due to improper storage or use habits), improper 3 532 43 75-58 1 Spark Plug
maintenance or failure to follow maintenance guidelines and/or instructions, failure to 4 532 43 75-59 1 Oil Dipstick Assembly
operate the product in accordance with the owner’s manual or any additional instructions 5 532 43 75-62 1 Recoil Starter Assembly
or information provided at the time of purchase or in subsequent communications with 6 532 43 75-63 1 Handle, Recoil Stater
the original purchaser, accident or unauthorized alterations or repairs made or attempted 7 532 43 75-64 1 Service Kit, Carburetor (Includes Insulator Plate,
by others. Also excluded from warranty coverage – except as provided below - are the Insulator Plate Gasket and Caburetor Gasket)
following: maintenance, adjustments, components subject to wear including but not 8 532 43 75-65 1 Carburtor Assembly
limited to: cosmetic components, belts, blades, blade adapters, bulbs, tires, filters, guide 9 532 43 75-66 1 Gasket, Air Cleaner
bars, lubricants, seats, grips, recoil assy’s, saw chains and bars, trimmer lines and spools, 10 532 43 75-67 1 Breather Tube
spark plugs, starter ropers and tines, and discoloration resulting from ultraviolet light. Any 11 532 43 75-68 2 Nut, Air Cleaner
product missing the model and/or serial number identification label will be disqualified 12 532 43 75-69 1 Case, Air Clearner
from coverage under this warranty. 13 532 43 75-70 1 Air Cleaner Assembly
REPAIRS: Repairs have a 90 day warranty. If the defective product is still within the 14 532 43 75-71 1 Cover, Air Cleaner Case
Warranty Period, then the new warranty is 90 days from the date of repair or to the end of 15 532 43 93-77 1 Air Filter
the original Warranty Period, whichever period is longer. 16 532 43 75-72 1 Cover, Muffler
17 532 43 75-73 1 Muffler Assembly (Includes hardware)
DISCLAIMERS: THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE 18 532 43 75-74 1 Gasket, Exhaust Port
EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER ORAL OR 19 532 43 75-75 1 Fuel Cap Assembly
WRITTEN (OTHER THAN AS STATED HEREIN), AND WHETHER EXPRESS, IMPLIED 20 532 43 75-76 1 Fuel Tank Assembly (Includes hardware)
OR STATUTORY, INCLUDING BUT NOT LIMITED TO ANY. THIS WARRANTY 21 532 43 75-77 1 Service Kit, Fuel Tank
GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM PROVINCE TO (Includes Fuel Hose and Hose Clamps)
PROVINCE. 22 532 43 75-80 1 Ignition Coil
IN NO EVENT SHALL SEARS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT 23 532 43 93-78 1 Cap, Spark Plug
OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE 24 532 43 75-81 1 Brake Assembly
OR INABILITY TO USE THE PRODUCT OR FROM DEFECTS IN THE PRODUCT. THE 25 532 43 75-82 1 Primer Bulb Assembly (Includes Hose and Clips)
EXCLUSIONS IN THIS PARAGRAPH SHALL NOT APPLY IN JURISDICATIONS WHERE 26 532 43 75-83 1 Shroud Assembly (Includes hardware)
APPLICABLE LAW DOES NOT ALLOW FOR THE EXCLUSION OF INCIDENTAL OR 27 532 43 93-79 1 Spring, Governor
CONSEQUENTIAL DAMAGES. IN SUCH JURISDICTIONS, THIS PARAGRAPH SHALL 28 532 43 93-80 1 Throttle (Governor) Control Lever Set
NOT APPLY, BUT THE REMAINING PROVISIONS OF THIS DOCUMENT SHALL 29 532 43 93-81 1 Throttle Control Bracket Assembly
REMAIN VALID. 30 532 43 93-82 1 Brackets, Fuel Tank (RH and LH)
31 532 43 93-84 1 Blower Housing
Sears retains the exclusive right to repair or replace the product or offer a full refund of
32 532 43 93-85 1 Flywheel Assembly (Nuts, Washer and Key)
the purchase price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND
EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.
NOT ILLUSTRATED:
CUSTOMER RESPONSIBILITIES: In additional to complying with all suggested - - 532 43 75-84 1 Engine Assembly (Shroud not included)
maintenance guidelines and instructions, customers’ obligations shall include but shall
not be limited to: operating the product in accordance with the owner’s manual or any
additional instructions or information provided at the time of purchase or in subsequent
communications to the purchaser from time to time, exhibit reasonable care in the use,
operation, maintenance, general upkeep and storage of the product. Failure to comply
with these requirements will void any applicable warranty.
4 21
RATO 4-CYCLE ENGINE MODEL NUMBER RV140-1
WARRANTY
LIST OF APPLICABLE WARRANTY PERIODS: The following list contains the applicable
Warranty Period for your Craftsman product and is based on a combination of the type of
product or component and the intended and actual use of the product or component:
1. 90 DAYS: Craftsman products intended for use or actually used for commercial,
institutional, professional or income-producing purposes
2. 2 YEARS: Craftsman riding lawn mowers, yard and garden tractors, walk behind
mowers, tillers, brush cutters, snow blowers, handheld blowers, backpack blowers,
hedge trimmers and electrical products for noncommercial, nonprofessional, non-
institutional, or non-income-producing use, except for those components which are
part of engine systems manufactured by third party engine manufacturers for which
the purchase has received an separate warranty with product information supplied at
the time of purchase.
3. 1 YEAR: Craftsman power cutters, stump grinders, pole pruners, gas chain saws,
electric chain saws, trimmer attachments, baggers and pole saws for noncommercial,
nonprofessional, non-institutional, or non-income-producing use.
4. 90 DAYS: All defective batteries, which will be replaced during this 90-day Warranty
Period.
5. 60 DAYS: Additional Warranty Period of 60 days will apply to adjustments and worn
products or components BUT DOES NOT INCLUDE WEAR OR ADJUSTMENTS
for products used for commercial, institutional, professional or income-producing
purposes. Wear items include but are not limited to: belts, blades, tires, spark plugs,
air filters, chains, shear bolts, skid plates, scraper bars, drift cutters, ropes, tines,
collection bags and pulleys.
As the Warranty Period runs from the date of purchase and NOT from the date that a
product is delivered, opened, assembled or first used, plea se ensure during this time
period that your product or component has been assembled and tested for correction
operation regardless of when you intend to actually use it. Claims made after the
Warranty Period has expired will not be honored.
PROOF OF PURCHASE/DOCUMENTATION: Warranty coverage is conditioned upon
the original purchaser furnishing Sears Canada or its authorized third party service
provider if applicable, with the original sales receipt or other adequate written proof of
the original purchase date and identification of the product. In the event that the original
purchaser is unable to provide a company of the original sales receipt, Sears Canada
Inc. reserves the right to determine in its sole discretion what other written proof of the
original purchase date and identification of the product is acceptable.
PRODUCT SPECIFICATIONS
Serial Number:
Date of Purchase:
Gasoline Capacity / Type: 1.14 Quarts (Unleaded Regular)
Oil Capacity: 18.5 Ounces
Oil Type (API SG–SL): SAE 10W-30 (or SAE 30 above 40°F,
or SAE 5W-30 below 32°F)
Spark Plug (Gap: .030") N.H.S.P. F6RTC; Torch F6RTC
Blade Bolt Torque: 35–40 ft. lbs.
• The model and serial numbers will be found on a decal on the rear of the lawn mower
housing. Record both serial number and date of purchase in space provided above.
20 5
engine.
CARTON
mower.
handle.
loose parts.
TO UNFOLD HANDLE
6
Vinyl
bindings
Operator
UP
manual.
presence
LIFT
control bar
TO INSTALL ATTACHMENTS
2. Slip vinyl bindings over frame.
NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm.
IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your lawn mower and void your warranty.
REPAIR PARTS OPERATION
KNOW YOUR LAWN MOWER
44 READ THIS OWNER'S MANUAL AND ALL SAFETY RULES BEFORE OPERATING YOUR
61
LAWN MOWER. Compare the illustrations with your lawn mower to familiarize yourself with
56
the location of various controls and adjustments. Save this manual for future reference.
57
54
53
61
37
These symbols may appear on your lawn mower or in literature supplied with the product.
36
42
49
Learn and understand their meaning.
73
36
19
55
73
CRAFTSMAN ROTARY LAWN MOWER - - MODEL NUMBER 944.362160
23
22
30
33
83
34
33
32
28
43
30
84
35
44
52
Operator presence control bar
25
59
Handle knob
Starter
84
74
handle
45
47
41
29
30
22
33
46
67
20
18
62
73 catcher
21
36
Primer
7
15
9
41
47
6
51
Air filter
14
with dipstick
61
26
75
3
37
Muffler
77
76
33
Mulcher door
32
30
5
34
73
14
The use of any gasoline exceeding 10% ethanol (E10) will void the product warranty.
2
Sears rotary walk-behind power lawn mowers conform to the safety standards of the
American National Standards Institute and the U.S. Consumer Product Safety Com-
mission. WARNING: The blade turns when the engine is running.
50
Operator presence control bar – must Primer– pumps additional fuel from the
40
31
be held down to the handle to start the carburetor to the cylinder for use when
engine. Release to stop the engine. starting a cold engine.
1
Mulcher door – allows conversion to Starter handle – used for starting engine.
18 discharging or bagging operation. 7
The operation of any lawn • To convert to mulching or discharging TROUBLESHOOTING - See appropriate section in manual unless directed
mower can result in foreign operation, remove grass catcher and to a Sears Service Centre.
objects thrown into the eyes, close rear door.
PROBLEM CAUSE CORRECTION
which can result in severe eye Pivot pins Rear Grass
damage. Always wear safety door catcher Loss of power 1. Rear of mower housing or 1. Raise cutting height.
glasses or eye shields while operating your handle blade dragging in grass.
lawn mower or performing any adjustments 2. Cutting too much grass. 2. Raise cutting height.
or repairs. We recommend standard safety 3. Dirty air filter. 3. Clean/replace air filter.
glasses or a wide vision safety mask worn 4. Buildup of grass, leaves, 4. Clean underside of mower
over spectacles. and trash under mower. housing.
5. Too much oil in engine. 5. Check oil level.
HOW TO USE YOUR LAWN MOWER 6. Walking speed too fast. 6. Cut at slower walking speed.
ENGINE SPEED
The engine speed was set at the factory Poor cut – 1. Worn, bent or loose blade. 1. Replace blade. Tighten
for optimum performance. Speed is not Catcher frame hook uneven blade bolt.
adjustable. 2. Wheel heights uneven. 2. Set all wheels at same
SIDE DISCHARGING height.
ENGINE ZONE CONTROL • Rear door must be closed. 3. Buildup of grass, leaves 3. Clean underside of
CAUTION: Federal regulations require • Open mulcher door and install dis- and trash under mower. mower housing.
an engine control to be installed on this charge deflector under door as shown.
lawn mower in order to minimize the • Mower is now ready for discharging Excessive 1. Worn, bent or loose blade. 1. Replace blade. Tighten
risk of blade contact injury. Do not under operation. vibration blade bolt.
any circumstances attempt to defeat the • To convert to mulching or bagging 2. Bent engine crankshaft. 2. Contact a Sears or other
function of the operator control. The blade operation, discharge deflector must be qualified service centre.
turns when the engine is running. removed and mulcher door must be
• Your lawn mower is equipped with an closed. Starter rope 1. Engine flywheel brake is on 1. Depress control bar to
operator presence control bar which hard to pull when control bar is released. upper handle before
requires the operator to be positioned pulling the starter rope.
behind the lawn mower handle to start 2. Bent engine crankshaft. 2. Contact a Sears or other
and operate the lawn mower. qualified service centre.
TO ADJUST CUTTING HEIGHT 3. Blade adapter broken. 3. Replace blade adapter.
Raise wheels for low cut and lower wheels 4. Blade dragging in grass. 4. Move lawn mower to cut
for high cut, adjust cutting height to suit grass or to hard surface.
your requirements. Medium position is
best for most lawns. Grass catcher 1. Cutting height too low. 1. Raise cutting height.
• To change cutting height, squeeze not filling 2. Lift on blade worn off. 2. Replace blade.
adjuster lever toward wheel. Move wheel (If so equipped) 3. Catcher not venting air. 3. Clean grass catcher.
Open mulcher door
up or down to suit your requirements. Be
sure all wheels are in the same setting. Hard to push 1. Grass is too high or wheel 1. Raise cutting height.
Discharge deflector height is too low.
NOTE: Adjuster is properly positioned when
plate tab inserts into hole in lever. Also, 9- 2. Rear of mower housing or 2. Raise rear of mower housing
position adjusters (if so equipped) allow lever blade dragging in grass. one (1) setting higher.
to be positioned between the plate tabs. 3. Grass catcher too full. 3. Empty grass catcher.
4. Handle height position not 4. Adjust handle height to suit.
LEVER BACKWARD Plate tab
TO LOWER MOWER
right for you.
10 15
• Clean engine often to keep trash from • We do not recommend using a garden
accumulating. A clogged engine runs hose to clean lawn mower unless the MAINTENANCE
hotter and shortens engine life. electrical system, muffler, air filter and
• Keep finished surfaces and wheels free carburetor are covered to keep water BEFORE AFTER EVERY EVERY EVERY
EACH EACH 10 25 HOURS 100 BEFORE
of all gasoline, oil, etc. out. Water in engine can result in short- STORAGE
USE USE HOURS OR SEASON HOURS
ened engine life.
Check for Loose Fasteners
Clean / Inspect Grass Catcher *
SERVICE AND ADJUSTMENTS Check Tires
Check Drive Wheels ***
WARNING: To avoid serious injury, Mowing Mowing Clean Lawn Mower ****
before performing any service or adjust- position position Clean under Drive Cover ***
ments: Check Drive Belt / Pulleys ***
1. Release control bar and stop engine. Check / Sharpen / Replace Blade
2. Make sure the blade and all moving
Lubrication
parts have completely stopped.
Clean and Recharge Battery **
3. Disconnect spark plug wire from spark
plug and place wire where it cannot Hairpin Check Engine Oil level
come in contact with plug. cotter Handle Change Engine Oil
Mounting bracket Clean Air Filter
LAWN MOWER pin Inspect Muffler
LOW POSITION HIGH POSITION
TO ADJUST CUTTING HEIGHT Replace Spark Plug
See “TO ADJUST CUTTING HEIGHT” in Replace Air Filter Paper Cartridge
the Operation section of this manual. Empty fuel system or add Stabilizer
REAR DEFLECTOR * (if so equipped) 1 - Change more often if operating under a heavy load or in high outdoor temperatures.
2 - Service more often if operating in dirty or dusty conditions.
The rear deflector, attached between the ** Electric-Start mowers 3 - Replace blades more often when mowing in sandy soil.
rear wheels of your mower, is provided to *** Power-Propelled mowers 4 - Charge 48 hours at end of season.
minimize the possibility that objects will **** Use a scraper
to clean under deck 5 - And after each 5 hours of use.
be thrown out of the rear of the mower
into the operator mowing position. If the GENERAL RECOMMENDATIONS LUBRICATION CHART
deflector becomes damaged, it should be Lower The warranty on this lawn mower does not
replaced. handle cover items that have been subjected to Wheel
TO ADJUST HANDLE ROTATE operator abuse or negligence. To receive adjuster (on
The handle can be mounted in a high or full value from the warranty, operator must each wheel)
low position. The mounting holes in the ENGINE maintain unit as instructed in this manual.
bottom of lower handle are off center for Engine oil
ENGINE SPEED Some adjustments will need to be made
raising or lowering the handle.
Your engine speed has been factory set. periodically to properly maintain your unit.
1. Remove upper handle and all wire Mulcher
Do not attempt to increase engine speed
tie(s) securing cable(s) to lower handle. door hinge
or it may result in personal injury. If you At least once a season, check to see if
2. Remove hairpin cotters from lower pin
believe that the engine is running too fast you should make any of the adjustments
handle bracket mounting pin.
or too slow, take your lawn mower to a described in the Service and Adjustments
3. Squeeze lower handle in to remove it Rear
Sears or other qualified service centre for section of this manual.
from mounting pins. door hinge
repair and adjustment. • At least once a year, replace the spark
4. Turn lower handle over to raise or
lower handle. CARBURETOR plug, clean or replace air filter element
5. Squeeze lower handle in and position Your carburetor is not adjustable. If your and check blade for wear. A new spark
holes onto mounting pins on handle engine does not operate properly due to plug and clean/new air filter element
bracket. suspected carburetor problems, take your assure proper air-fuel mixture and help
6. Reassemble upper handle and all lawn mower to a Sears or other qualified your engine run better and last longer. Handle bracket mounting pins
parts removed from lower handle. service centre for repair or adjustment. • Follow the maintenance schedule in this
IMPORTANT: Never tamper with the manual. Spray lubricant
SQUEEZE engine governor, which is factory set
TO ADJUST See "ENGINE" in Maintenance section.
for proper engine speed. Overspeeding BEFORE EACH USE
Lower handle the engine above the factory high speed • Check engine oil level. IMPORTANT: Do not oil or grease plastic
setting can be dangerous. If you think • Check for loose fasteners. wheel bearings. Viscous lubricants will
Mounting pin the engine-governed high speed needs attract dust and dirt that will shorten the life of
Handle adjusting, contact a Sears or other the self-lubricating bearings. If you feel they
qualified service centre, which has proper LUBRICATION
bracket Hairpin cotter must be lubricated, use only a dry, powdered
equipment and experience to make any Keep unit well lubricated
(See “LUBRICATION CHART”). graphite type lubricant sparingly.
14 necessary adjustments. 11
LAWN MOWER Blade adapter Key Crankshaft Check the crankcase oil level before AIR FILTER
Always observe safety rules when per- keyway starting the engine and after each five (5) Your engine will not run properly and may
forming any maintenance. Lockwasher hours of continuous use. Tighten oil plug be damaged by using a dirty air filter.
securely each time you check the oil level. Replace the air filter every 100 hours of
TIRES
Blade TO CHANGE ENGINE OIL operation or every season, whichever oc-
• Keep tires free of gasoline, oil, or insect curs first. Service air cleaner more often
control chemicals which can harm rubber. NOTE: Before tipping lawn mower to
drain oil, empty fuel tank by running en- under dusty conditions.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may gine until fuel tank is empty. TO CLEAN AIR FILTER
cause tire damage. Blade 1. Disconnect spark plug wire from spark 1. Remove cover.
bolt Hardened plug and place wire where it cannot 2. Carefully remove cartridge.
BLADE CARE come in contact with plug.
washer Trailing edge Crankshaft 3. Clean by gently tapping on a flat sur-
For best results, blade must be kept 2. Remove oil fill cap/dipstick; lay aside face. If very dirty, replace cartridge.
sharp. Replace a bent or damaged blade. TO SHARPEN BLADE on a clean surface. CAUTION: Petroleum solvents, such
CAUTION: Use only a replacement NOTE: We do not recommend sharpening 3. Tip lawn mower on its side as shown as kerosene, are not to be used to clean
blade approved by the manufacturer of blade - but if you do, be sure the blade is bal- and drain oil into a suitable container. cartridge. They may cause deterioration
your mower. Using a blade not approved anced. Care should be taken to keep the blade Rock lawn mower back and forth to re- of the cartridge. Do not oil cartridge. Do
by the manufacturer of your mower is haz- balanced. An unbalanced blade will cause move any oil trapped inside of engine. not use pressurized air to clean or dry
ardous, could damage your mower and eventual damage to lawn mower or engine. cartridge.
void your warranty. • The blade can be sharpened with a file 4. Install cartridge, then replace cover.
or on a grinding wheel. Do not attempt
TO REMOVE BLADE
to sharpen while on the mower.
1. Disconnect spark plug wire from spark • To check blade balance, drive a nail into
plug and place wire where it cannot Slot
a beam or wall. Leave about one inch of
come in contact with plug. the straight nail exposed. Place center
2. Turn lawn mower on its side. Make hole of blade over the head of the nail.
sure air filter and carburetor are up. If blade is balanced, it should remain in
3. Use a wood block between blade and Tab
a horizontal position. If either end of the
mower housing to prevent blade from blade moves downward, sharpen the
turning when removing blade bolt. heavy end until the blade is balanced.
NOTE: Protect your hands with gloves Container
and/or wrap blade with heavy cloth. GRASS CATCHER
4. Remove blade bolt by turning counter- • The grass catcher may be hosed with 4. Wipe off any spilled oil from lawn Cartridge
clockwise. water, but must be dry when used. mower or side of engine.
5. Remove blade and attaching hardware • Check your grass catcher often for dam- 5. Fill engine with oil. Slowly pour oil
(bolt, lock washer, hardened washer). age or deterioration. Through normal down the oil fill spout into the engine.
NOTE: Remove the blade adapter and use it will wear. If catcher needs replac- 6. Wait one minute to allow oil to settle. Filter cover
check the key inside hub of blade adapter. ing, replace only with approved replace- Use guage on oil fill cap/dipstick for
The key must be in good condition to work ment catcher shown in the Repair Parts checking level. Insert dipstick into MUFFLER
properly. Replace adapter if damaged. section of this manual. Give the lawn the tube and rest the oil fill cap on the
mower model number when ordering. Inspect and replace corroded muffler as it
tube. DO NOT thread the cap into the
TO REPLACE BLADE could create a fire hazard and/or damage.
tube when taking reading.
1. Position the blade adapter on the en- ENGINE SPARK PLUG
gine crankshaft. Be sure key in adapter LUBRICATION Oil fill cap / Replace spark plug at the beginning of
and crankshaft keyway are aligned. dipstick each mowing season or after every 100
2. Position blade on the blade adapter Use only high quality detergent oil rated
with API service classification SJ–SL. hours of operation, whichever occurs
aligning the two (2) holes in the blade first. Spark plug type and gap setting
with the raised lugs on the adapter. Select the oil's SAE viscosity grade accord-
are shown in the “PRODUCT SPECIFIC-
3. Be sure the trailing edge of blade (oppo- ing to your expected operating temperature. ATIONS” section of this manual.
site sharp edge) is up toward engine.
4. Install the blade bolt with the lock Upper CLEANING
washer and hardened washer into 30 mark
IMPORTANT: For best performance,
blade adapter and crankshaft. 10W-30 keep mower housing free of built-up grass
5. Use block of wood between blade and Lower
5W-30 mark and trash. Clean the underside of your
lawn mower housing and tighten the mower after each use.
blade bolt, turning clockwise. 7. Continue adding small amounts of
• The recommended tightening torque is CAUTION: Disconnect spark plug wire
oil and rechecking the dipstick until it
35-40 ft. lbs. / 47-54 N-m. reads full. DO NOT overfill, or engine from spark plug and place wire where it
IMPORTANT: Blade bolt is heat treated. Change the oil after every 25 hours of will smoke on startup. cannot come in contact with plug.
If bolt needs replacing, replace only with operation or at least once a year if the 8. Always be sure to retighten oil fill cap/ • Clean the underside of your lawn mower
approved bolt shown in the Repair Parts lawn mower is not used for 25 hours in dipstick before starting engine. by scraping to remove build-up of grass
section of this manual. 9. Reconnect spark plug wire to plug. and trash.
12 one year. 13