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12

Blade
adapter

Blade
bolt

Crank
shaft
keyway

Hardened
washer

Lock
washer

Blade
adapter

Key

Blade

Trailing
edge

Crank
shaft

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

SAE VISCOSITY GRADES

-20°

30°

40°

80°

100°

-30°

-20°

20°

30°

40°

°

F

°

C

32°

-10°

10°

60°

5W-30

SAE 30

IMPORTANT:  Blade bolt is grade 8 heat
treated.

TO SHARPEN BLADE
NOTE:  We do not recommend sharpen-
ing blade - but if you do, be sure the blade
is balanced.
Care should be taken to keep the blade
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 horizontal position.  If either
end of the blade moves downward,
sharpen the heavy end until the blade
is balanced.

GRASS CATCHER

• The grass catcher may be hosed with

water, but must be dry when used.

• Check your grass catcher often for

damage or deterioration.  Through normal
use it will wear.  If catcher needs replacing,
replace only with a manufacturer approved
replacement catcher.  Give the lawn
mower model number when ordering.

ENGINE

LUBRICATION
Use only high quality detergent oil rated
with API service classification SF, SG or
SH.  Select the oil's SAE viscosity grade
according to your expected operating
temperature.

NOTE:  Although multi-viscosity oils
(5W30, 10W30 etc.) improve starting in
cold weather, these multi-viscosity oils
will result in increased oil consumption
when used above 32°F.  Check your
engine oil level more frequently to avoid
possible engine damage from running
low on oil.
Change the oil after every 25 hours of
operation or at least once a year if the
lawn mower is not used for 25 hours in
one year.
Check the crankcase oil level before
starting the engine and after each five (5)
hours of continuous use. Tighten oil plug
securely each time you check the oil
level.

DRIVE WHEELS
Check front drive wheels each time
before you mow to be sure they move
freely.
The wheels not turning freely means
trash, grass cuttings, etc. are in the drive
wheel area and must be cleaned to free
drive wheels.
If necessary to clean the drive wheels,
check both front wheels.
• Remove hubcaps, hairpin cotters and

washers.

• Remove wheels from wheel adjusters.

GEAR CASE
• To keep your drive system working

properly, the gear case and area
around the drive should be kept clean
and free of trash build-up.  Clean under
the drive cover twice a season.

• The gear case is filled with lubricant to

the proper level at the factory.  The only
time the lubricant needs attention is if
service has been performed on the
gear case.

• If lubricant is required, use only Texaco

Starplex Premium 1 Grease, Part No.
750369.  Do not substitute.

• Remove any trash or grass cuttings

from inside the dust cover, pinion and/
or drive wheel gear teeth.

• Put wheels back in place.
• If after cleaning, the drive wheels do

not turn freely, contact your nearest
authorized service center.

17

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 blade 7. Tighten blade bolt or

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 housing 1. Set to “Higher Cut”

or cutting blade dragging

position.

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.

Poor cut – uneven 1. Worn, bent or loose blade.

1. Replace blade. Tighten

blade bolt.

2. Wheel heights  uneven.

2. Set all wheels at same

height

3. Buildup of grass, leaves

3. Clean underside of

and trash under mower.

mower  housing.

PROBLEM

CAUSE

CORRECTION

TROUBLESHOOTING CHART

Summary of Contents for 944.360300

Page 1: ...ROPELLED ROTARY LAWN MOWER Safety Assembly Operation Maintenance Repair Parts Sears Canada Inc Toronto Ontario M5B 2B8 172447 02 11 00 VB Printed in U S A NEED A PART SEARS HAS ACCESS TO OVER 800 000 PARTS WHETHER IT S A SPARK PLUG OR LAWNMOWER BLADE SEARS PARTS AND SERVICE CAN SUPPLY YOU WITH TOP QUALITY REPAIR PARTS FOR ALL YOUR PRODUCTS JUST CALL 1 800 4MY HOME ...

Page 2: ...xpendable items which become worn during normal use such as rotary mower blades blade adapters belts filters and spark plugs 3 Repairs necessary because of operator abuse or negligence including bent crankshafts and the failure to operate and maintain the equipment according to the instructions con tained in the Owner s Manual Warranty service is available by returning the Craftsman Power Mower to...

Page 3: ...our footing Do not mow excessively steep slopes Use caution when operating the mower on uneven terrain or when changing directions maintain good footing Never operate your mower without proper guards plates grass catcher or other safety devices in place MAINTENANCEANDSTORAGE Check the blade and the engine mounting bolts often to be sure they are tightened properly Check all bolts nuts and screws a...

Page 4: ...mshaft MCR 52 29914 Oil Pump Ass y 69 35261 Mounting Flange Gasket 70 34311E Mounting Flange Incl 72 thru 83 72 30572 Oil Drain Plug Incl 73 73 28833 Drain Plug Gasket 75 27897 Oil Seal 80 30574A Governor Shaft 81 30590A Washer 82 30591 Governor Gear Ass y Incl 81 83 30588A Governor Spool 86 650488 Screw 1 4 20 x 1 1 4 89 611004 Flywheel Key 90 611112 Flywheel 92 650815 Belleville Washer 93 650816...

Page 5: ...rass catcher in place Never attempt to operate the lawn mower with the rear door removed or propped open Grass catcher handle Catcher frame handle Vinyl binding Frame opening Handle bracket hook Rear door Catcher frame side hook TO INSTALL ATTACHMENTS Your lawn mower was shipped ready to be used as a mulcher To convert to bagging or discharging Open rear door and remove mulcher plug Store mulcher ...

Page 6: ... engine Primer pumps additional fuel from the carburetor to the cylinder for use when starting a cold engine Starter handle used for starting the engine Operator presence control bar Gasoline filler cap Primer Air filter Engine oil cap Lawn mower housing Wheel ajduster on each wheel Handle knob Grass catcher Engine zone control cable Starter handle Drive control lever Drive cover 23 KEY PART NO NO...

Page 7: ...juster lever toward wheel Move wheel up or down to suit your requirements 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 DRIVE CONTROL Self propelling is controlled by holding the operator presence control bar down to the handle and...

Page 8: ...d pull starter handle quickly Do not allow starter rope to snap back To stop engine release operator presence control bar NOTE In cooler weather it may be necessary to repeat priming steps In warmer weather over priming may cause flooding and engine will not start If you do flood engine wait a few minutes before attempting to start and do not repeat priming steps 21 KEY PART NO NO DESCRIPTION 1 16...

Page 9: ...aning in MAINTENANCE section of this manual The special mulching blade will recut the grass clippings many times and reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed Also the mulched grass will biodegrade quickly to provide nutrients for the lawn Always mulch with your highest engine blade speed as this will provide the best recutting acti...

Page 10: ...Air Filter Replace Air Filter Paper Cartridge Clean or Replace Spark Plug FILL IN DATES AS YOU 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 te...

Page 11: ... adapter on the engine crankshaft Be sure key in adapter and crankshaft keyway are aligned Position blade on the blade adapter aligning the two 2 holes in the blade with the raised lugs on the adapter Be sure the trailing edge of blade opposite sharp edge is up toward the engine Install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft Use block of wood betw...

Page 12: ... WHEELS Check front drive wheels each time before you mow to be sure they move freely The wheels not turning freely means trash grass cuttings etc are in the drive wheel area and must be cleaned to free drive wheels If necessary to clean the drive wheels check both front wheels Remove hubcaps hairpin cotters and washers Remove wheels from wheel adjusters GEAR CASE To keep your drive system working...

Page 13: ...t in shortened engine life CLEAN UNDER DRIVE COVER Clean under drive cover at least twice a season Scrape underside of cover with putty knife or similar tool to remove any build up of trash or grass on underside of drive cover TO CHANGE ENGINE OIL NOTE Before tipping lawn mower to drain oil drain fuel tank by running engine until fuel tank is empty Disconnect spark plug wire from spark plug and pl...

Page 14: ...GE 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 LAWNMOWER 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 Clean entire lawn mower See CLEAN ING in the Maintenance section of this manual Lubricate as shown in the Maintenance section of ...

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