Service And Adjustments - Craftsman 917.377091 Owner's Manual

,ACAUTION- Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with 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 finished surfaces and wheels free
of all gasoline, oil, etc.
• We do not recommend using agarden hose
to clean lawn mower unless the electrical
system, muffler, airfilter and carburetor are
covered to keep water out. Water in engine
can result 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.
A, 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 CU'I-rlNG HEIGHT" in
the Operation section of this manual.
REAR DEFLECTOR
The rear deflector, 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 deflector
becomes damaged, it should be replaced.
TO REMOVE DRIVE BELT
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with plug.
2. Remove screws retaining drive cover
and remove drive cover from lawn
mower housing (See Figure A).
Drive
cover
Lawn
mower
housing
3. Remove drive cable from anchor, then
detach it and return spring from idler
arm assembly (See Fig. B).
Return cable anchor
/ Drive belt
Housing
hole
pulley Idler arm
Belt keeper PIVOT \ assembly
Figure B
4. Pivot idler arm assembly to slacken
drive belt, then remove drive belt from
drive pulley, belt keepers and idler arm.
5. Turn lawn mower on its side. Make
sure air filter and carburetor are up.
6. Remove screw securing debris shield.
Note that the debris shield has a tab
which fits into a gap in the housing
(See Figure C).
Crankshaft Tab Blade
Housing adapter
hole (pulley
end)
Hardened
washer
3lade
bolt
Lock-washer
g edg,
Figure A 15 Figure C