Service And Adjustments; Cleaning; Clean Under Drive Cover; Rear Deflector - Craftsman 917.374821 Owner's Manual

Rotary lawn mower 6.75 horsepower power-propelled 21" multi-cut
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CLEANING
IMPORTANT: For best performance,keep
mowerhousingfree of built-grassand
trash. Cleanthe undersideof your mower
after eachuse.
ACAUTION: Disconnectspark 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 a garden
hose to clean
lawn mower
unless
the
electrical
system,
muffler,
air filter and
carburetor
are covered
to keep water
out.
Water in engine
can result in short-
ened 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.
_,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
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.
Remove
drive cable from anchor,
then
detach
spring
from idler arm assembly.
anchor
,
Drive
pulley
Drive belt
,
Belt
Hex
Idler arm
Housing
3.
keepers
nut
assembly
hole
15
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.
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.
C_nkshaff
Housing hole
adapter
Hardened
washer
Blade
bolt
Trailing edge-
7.
Remove
blade bolt.
8.
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.
9.
Remove
drive belt from engine
pulley;
discard
old belt.
TO REPLACE
DRIVE
BELT
1.
Place new drive belt on engine
pulley.
Route the other end of the new drive
belt through
hole in housing.
Return
mower
to upright
position.

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