Husqvarna 917.374451 Owner's Manual page 15

CLEANING
IMPORTANT:For best performance,
keepmowerhousingfree of built-grass
andtrash. Cleanthe undersideof your
moweraftereach use.
_CAUTION: Disconnectspark plug wire
from spark plug and place wirewhere it
cannotcomein contactwith plug.
• Cleanthe undersideof your lawn mower
by scrapingto removebuild-upof grass
and trash.
• Cleanengineoften to keeptrash from
accumulating.A cloggedengineruns
hotter andshortensenginelife.
• Keepfinishedsurfacesand wheelsfree
of all gasoline,oil, etc.
• We do not recommendusing a garden
hoseto clean lawn mowerunlessthe
electricalsystem,muffler,air filter and
carburetorare coveredto keepwater
out. Water in enginecan resultin short-
ened enginelife.
CLEAN UNDER DRIVECOVER
Clean underdrive coverat least twice a
season.Scrapeundersideof coverwith
putty knifeor similar tool to removeany
build-upof trash or grasson undersideof
drive cover.
A WARNING: Toavoid serious injury,beforeperformingany serviceand adjustments:
1. Releasecontrolbar and stop engine.
2. Makesure the blade andall movingparts have completelystopped.
3. Disconnectspark plug wire fromspark plug and placewire where it cannotcome in
contactwith plug.
LAWN MOWER
TO ADJUST CUTTING HEIGHT
See "TO ADJUST CUTTING 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 the
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
(not shown); and remove drive cover
from lawn mower housing.
3. Remove drive cable from anchor, then
iulley _ _.....--.--
7.
_-\ N
/ F / -\
rrl/ __ _ Drive-belt /I I a,
t,\\ ' '- _-'/ / _ ," _'- _ _l _ .
Belt m
keepers spring assemblY15
4. Remove idler arm assembly from
housing by removing hex nut; then
remove drive belt from drive pulley, belt
keepers and idler arm assembly.
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.
Crankshaft Tab
Housing
hole \
Blade
_dapter
Hardened
washer
Blade
shield bolt
detach it and return spring from idler
arm assembly. Screw Trailing edge Lock-washer
Drive Drive cable anchor Use a wood block between blade and
mower housing to prevent blade from
turning when removing blade bolt.
NOTE: Protect your hands with gloves
and/or wrap blade with heavy cloth.
Remove blade bolt.
Remove blade, attaching hardware
(bolt, lock washer, hardened washer),
blade adapter and debris shield. Note
that the debris shield has a tab which
fits into the housing hole.