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Craftsman 944.364280 Owner's Manual page 16

725 series briggs & stratton engine

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AIR FILTER
Your engine will not run properly using
a dirty air fi lter. Replace paper cartridge
every 100 hours of operation or every
season, which ev er occurs fi rst. Service air
cleaner more often under dusty conditions.
1. Loosen screws and remove cover.
2. Carefully remove cartridge.
3. Clean by gently tapping on a fl at sur-
face. If very dirty, replace cartridge.
CAUTION: Petroleum solvents, such as
ker o sene, are not to be used to clean car-
tridge. They may cause de te ri o ra tion of the
cartridge. Do not oil car tridge. Do not use
pres sur ized air to clean or dry car tridge.
4. Install cartridge, then replace cover.
Cartridige
MUFFLER
Inspect and replace corroded muffl er as it
could create a fi re hazard and/or dam age.
SPARK PLUG
Replace spark plug at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs fi rst.
Spark plug type and gap setting are shown
in the "PROD UCT SPEC I FI CA TIONS"
section of this manual.
CLEANING
IMPORTANT: For best performance,
keep mower housing free of built-grass
and trash. Clean the underside of your
mower after each use.
CAUTION: Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with spark plug.
• Clean the underside of your lawn
mower by scraping to remove build-up
of grass and trash.
• Clean engine often to keep trash from
accumulating. A clogged engine runs
hotter and shortens engine life.
• Keep fi nished surfaces and wheels free
of all gasoline, oil, etc.
• With the exception of the water washout
Screws
port (if equipped), we do not recom-
mend using a garden hose to clean the
outside of your lawn mower unless the
elec tri cal system, muffl er, air fi lter and
carburetor are covered to keep water
Cover
out. Water in engine can result in short-
ened engine life.
IN-LINE FUEL FILTER
The fuel fi lter should be replaced once
each season. If fuel fi lter becomes
clogged, ob struct ing fuel fl ow to car bu re-
Base
tor, re place ment is re quired.
1. With engine cool, remove fi lter and
plug fuel line sec tions.
2. Place new fuel fi lter in position in fuel
line with arrow pointing towards carbu-
retor.
3. Be sure there are no fuel line leaks
and clamps are properly positioned.
4. Immediately wipe up any spilled gaso-
line.
Clamp
Fuel
Filter
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.
16
WARNING: To avoid serious injury, before performing any service and adjustments:
1. Release control bar and stop engine.
2. Make sure the blade and all moving parts have completely stopped.
3. Disconnect spark plug wire from spark plug and place wire where it cannot come in
contact with plug.
LAWN MOWER
TO ADJUST CUTTING HEIGHT
See "TO ADJUST CUTTING HEIGHT" in
the Operation sec tion of this manual.
REAR DEFLECTOR
The rear defl ector, attached between the
rear wheels of your mower, is provided to
minimize the possibility that objects will
be thrown out of the rear of the mower
into the operator mowing position. If the
defl ector becomes dam aged, it should be
replaced.
TO REMOVE DRIVE BELT
1. Remove drive cover and belt keeper.
2. Remove belt from gearcase pulley.
3. Turn lawn mower on its side with air
fi lter and car bu re tor up.
4. Remove blade and blade adapter.
5. Remove belt from engine pulley.
Clamp
TO REPLACE DRIVE BELT
1. Place new drive belt on engine pulley,
inside tabs of belt retainer.
2. Route the other end of the new drive
belt through hole in housing.
3. Reinstall blade adapter and blade.
The recommended tightening torque is
35–40 ft. lbs. (47–54 Nm).
SERVICE AND ADJUSTMENTS
4. Return mower to upright po si tion.
5. Install new belt on gearcase pulley.
6. Reinstall belt keeper and drive cover.
NOTE: Always use factory approved belt
to assure proper fi t and long life.
Blade adapter
Lockwasher
Blade
Blade
bolt
Hardened
washer
TO ADJUST HANDLE
Your handle has three (3) height positions
- adjust to a height that suits you.
Drive
1. Remove knob and carriage bolt on one
cover
side of the lower handle.
2. While holding handle assembly,
remove knob and car riage bolt from
opposite side, align hole in handle with
desired hole in handle bracket and
reassemble bolt and knob and tighten
Gearcase
securely.
pulley
3. Align opposite side of handle with
same positioning hole and secure with
bolt and knob.
Belt
keeper
Handle
bracket
Belt
17
Key
Crankshaft
keyway
Belt
Trailing edge
retainer
Knob
Bolt
High
Medium
Low

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