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16

ENGINE

FUEL SYSTEM
IMPORTANT: 

 It is important to prevent

gum deposits from forming in essential
fuel system parts such as carburetor, fuel
filter, fuel hose or tank during storage.
Also, experience indicates that alcohol
blended fuels (called gasohol or using
ethanol or methanol) can attract moisture
which leads to separation and formation
of acids during storage. Acidic gas can
damage the fuel system of an engine
while in storage.
1. Drain the fuel tank.
2. Start the engine and let it run until the

fuel lines and carburetor are empty.

• Never use engine or carburetor cleaner

products in the fuel tank or permanent
damage may occur.

• Use fresh fuel next season.

NOTE:

  Fuel stabilizer is an acceptable

alternative in minimizing the formation of
fuel gum deposits during storage.  Add
stabilizer to gasoline in fuel tank or
storage container.  Always follow the mix
ratio found on stabilizer container.  Run
engine at least 10 minutes after adding
stabilizer to allow the stabilizer to reach
the carburetor.  Do not drain the gas tank
and carburetor if using fuel stabilizer.

ENGINE OIL

Drain oil (with engine warm) and replace
with clean engine oil.  (See "ENGINE"  in
the Maintenance section of this manual).

STORAGE

Immediately prepare your lawn mower for
storage at the end of the season or if the
unit will not be used for 30 days or more.

LAWN MOWER

When lawn mower is to be stored for a
period of time, clean it thoroughly, remove
all dirt, grease, leaves, etc.  Store in a
clean, dry area.
1. Clean entire lawn mower (See

"CLEANING" in the Maintenance
section of this manual).

2. Lubricate as shown in the Mainte-

nance section of this manual.

3. Be sure that all nuts, bolts, screws, and

pins are securely fastened.  Inspect
moving parts for damage, breakage
and wear.  Replace if necessary.

4. Touch up all rusted or chipped paint

surfaces; sand lightly before painting.

HANDLE

You can fold your lawn mower handle for
storage.
1. Squeeze the bottom ends of the lower

handle toward each other until the
lower handle clears the handle
bracket, then move handle forward.

2. Loosen upper handle mounting bolts

enough to allow upper handle to be
folded back.

IMPORTANT:

  When folding the handle

for storage or transportation, be sure to
fold the handle as shown or you may
damage the control cables.
• When setting up your handle from the

storage position, the lower handle will
automatically lock into the mowing
position.

Lower handle

Handle

bracket

Hairpin cotter

Squeeze to fold

Mounting pin

Mowing
position

Fold

backward

Operator presence
control bar

         Fold
      forward
    for
storage

Upper handle

Lower
handle

17

CYLINDER

1. Remove spark plug.
2. Pour one ounce (29 ml) of oil through

spark plug hole into cylinder.

3. Pull starter handle slowly a few times

to distribute oil.

4. Replace with new spark plug.

OTHER

• Do not store gasoline from one season

to another.

• Replace your gasoline can if your can

starts to rust.  Rust and/or dirt in your
gasoline will cause problems.

• If possible, store your unit indoors and

cover it to give protection from dust and
dirt.

• Cover your unit with a suitable protec-

tive cover that does not retain moisture.
Do not use plastic.  Plastic cannot
breathe, which allows condensation to
form and will cause your unit to rust.

IMPORTANT: 

 Never cover mower while

engine  and exhaust areas are still warm.

CAUTION: 

 Never store the lawn

mower with gasoline in the tank inside a
building where fumes may reach an open
flame or spark.  Allow the engine to cool
before storing in any enclosure.

 Does not start

1. Dirty air filter.

1. Clean/replace  air  filter.

2. Out of fuel.

2. Fill fuel tank.

3. Stale fuel.

3. Drain tank and refill with

fresh, clean fuel.

4. Water in fuel.

4. Drain fuel tank and

carburetor and refill tank
with fresh gasoline.

5. Spark plug wire is

5. Connect wire to plug.

disconnected.

6. Bad spark plug.

6. Replace spark plug.

7. Loose blade or broken

7. Tighten blade bolt or

blade adapter.

replace blade adapter.

8. Control bar in released

8. Depress control bar to

position.

handle.

9. Control bar defective.

9. Replace control bar.

 Loss of power

1. Rear of lawn mower

1. Set to “Higher Cut”

housing or cutting blade

position.

dragging in heavy grass.

2. Cutting too much grass.

2. Set to “Higher Cut”

position.

3. Dirty air filter.

3. Clean/replace  air  filter.

4. Buildup of grass, leaves,

4. Clean underside of mower

and trash under mower.

housing.

5. Too much oil in engine.

5. Check oil level.

6. Walking speed too fast.

6. Cut at slower walking

speed.

PROBLEM

CAUSE

CORRECTION

TROUBLESHOOTING CHART

Summary of Contents for 944.361390

Page 1: ...ules and Instructions before operating this equipment Owner s Manual 6 0 HORSEPOWER 21 MULTI CUT POWER PROPELLED ROTARY LAWN MOWER Safety Assembly Operation Maintenance Repair Parts Sears Canada Inc Toronto Ontario M5B 2B8 177431 03 31 01 BY Printed in U S A ...

Page 2: ...s do NOT allow limitation on how long an implied warranty will last so the above limitations may not apply to you SEARS CANADA INC TORONTO ONTARIO M5B 2B8 I GENERAL OPERATION Read understand and follow all instructions on the machine and in the manual s before starting Be thor oughly familiar with the controls and the proper use of the machine before starting Do not put hands or feet near or under...

Page 3: ...hful care of another responsible adult Be alert and turn machine off if children enter the area Before and while walking backwards look behind and down for small children Never allow children to operate the machine Use extra care when approaching blind corners shrubs trees or other objects that may obscure vision IV SERVICES Use extra care in handling gasoline and other fuels They are flammable an...

Page 4: ...er GovernorCrank 425 690670 Screw Air Cleaner Cover 443 692523 Screw Air Cleaner Primer Base 445 491588 Filter AirCleanerCartridge 455 695161 Cup Flywheel 456 692299 Plate PawlFriction 459 281505 Pawl Ratchet 505 231082 Nut Governor Control Lever 523 495264 Dipstick 524 692296 Seal DipstickTube 525 495265 Tube Dipstick 529 691923 Grommet 562 92613 Bolt Governor Control Lever 584 692342 Cover Breat...

Page 5: ...0912 Screw CylinderHead 15 691680 Plug OilDrain 16 691451 Crankshaft 20 399781 Seal Oil PTOSide 22 691092 Screw EngineSump 23 692315 Flywheel 24 222698 Key Flywheel 25 499429 Piston Assembly Standard 499430 Piston Assembly 010 O S 499431 Piston Assembly 020 O S 499432 Piston Assembly 030 O S 26 499425 Ring Set Piston Standard 499426 Ring Set Piston 010 O S 499427 Ring Set Piston 020 O S 499428 Rin...

Page 6: ...be held down to the handle to start the engine Release to stop the engine Primer pumps additional fuel from the carburetor to the cylinder for use when starting a cold engine Mulcher door allows conversion to discharging or bagging operation These symbols may appear on your lawn mower or in literature supplied with the product Learn and understand their meaning IMPORTANT This lawn mower is shipped...

Page 7: ...o suit your requirements Medium position is best for most lawns To change cutting height squeeze adjuster lever toward wheel Move wheel up or down to suit your require ments Be sure all wheels are in the same setting NOTE Adjuster is properly positioned when plate tab inserts into hole in lever Also 9 position adjusters if so equipped allow lever to be positioned between the plate tabs To engage d...

Page 8: ...gging operation discharge deflector must be removed and mulcher door must be closed SIMPLE STEPS TO REMEMBER WHEN CONVERTING YOUR LAWN MOWER FOR MULCHING 1 Rear door closed 2 Mulcher door closed FOR REAR BAGGING 1 Grass catcher installed 2 Mulcher door closed FOR SIDE DISCHARGING 1 Rear door closed 2 Side discharge deflector installed CAUTION Do not run your lawn mower without rear door closed or ...

Page 9: ...nd let it run until the fuel lines and carburetor are empty Use fresh fuel next season See Storage Instructions for additional information Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur TO START ENGINE NOTE Due to protective coatings on the engine a small amount of smoke may be present during the initial use of the product and should be considered no...

Page 10: ...event matting and graining of the lawn MOWINGTIPS Under certain conditions such as very tall grass it may be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of grass clippings It may also be necessary to reduce ground speed and or run the lawn mower over the area a second time For extremely heavy cutting reduce the width of c...

Page 11: ... COMPLETE REGULAR SERVICE MAINTENANCE SCHEDULE BEFORE EACH USE AFTER EACH USE EVERY 25 HOURS OR EVERY SEASON SERVICE DATES Check for Loose Fasteners BEFORE STORAGE Check Engine Oil Level Check Sharpen Replace Blade Inspect Muffler 1 Change more often when operating under a heavy load or in high ambient temperatures 2 Service more often when operating in dirty or dusty conditions 3 Replace blades m...

Page 12: ...lade balanced An unbalanced blade will cause eventual damage to lawn mower or engine The blade can be sharpened with a file or on a grinding wheel Do not attempt to sharpen while on the mower To check blade balance drive a nail into a beam or wall Leave about one inch of the straight nail exposed Place center hole of blade over the head of the nail If blade is balanced it should remain in a horizo...

Page 13: ...substitute ENGINE LUBRICATION Use only high quality detergent oil rated with API service classification SF SJ Select the oil s SAE viscosity grade according to your expected operating temperature TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE SAE VISCOSITY GRADES 20 0 30 40 80 100 30 20 0 20 30 40 F C 32 10 10 60 5W 30 SAE 30 NOTE Although multi viscosity oils 5W30 10W30 etc improve starting...

Page 14: ... drive cover AIR FILTER Your engine will not run properly and may be damaged by using a dirty air filter Replace the air filter every 100 hours of operation or every season whichever occurs first Service air cleaner more often under dusty conditions TO CLEAN AIR FILTER 1 Loosen screw and tilt cover to remove 2 Carefully remove cartridge 3 Clean by gently tapping on a flat surface If very dirty rep...

Page 15: ...nce to make any necessary adjustments Lower handle Rotate TO ADJUST HANDLE The handle can be mounted in a high or low position The mounting holes in the bottom of lower handle are off center for raising or lowering the handle 1 Remove upper handle and all parts attached to lower handle 2 Remove hairpin cotters from lower handle bracket mounting pin 3 Squeeze lower handle in to remove it from mount...

Page 16: ...ack IMPORTANT When folding the handle for storage or transportation be sure to fold the handle as shown or you may damage the control cables When setting up your handle from the storage position the lower handle will automatically lock into the mowing position Lower handle Handle bracket Hairpin cotter Squeeze to fold Mounting pin Mowing position Fold backward Operator presence control bar Fold fo...

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