Service And Adjustments; Cleaning; Clean Under Drive Cover; Rear Deflector - Craftsman 917.378871 Owner's Manual

6.75 horsepower 21" rear discharge rotary lawn mower
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CLEANING
IMPORTANT:
For best performance,
keep
mower
housing
free of built-grass
and
trash.
Clean the underside
of your mower
after each use.
_I, CAUTION:
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 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.
_I, 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.
Remove
drive cover.
Remove
belt from
gearcase
pulley
by pushing
down
on
pulley and rolling
belt off it.
2.
Turn lawn mower
on its side with air
filter and carburetor
up.
3.
Remove
blade.
4.
Remove
debris
shield.
5.
Remove
belt from engine
pulley on
crankshaft.
TO REPLACE
DRIVE
BELT
1.
Install
new belt on engine
pulley.
2.
Reinstall
debris
shield
and blade.
3.
Return
mower to upright
position.
4.
Install
new belt on gearcase
pulley.
5.
Reinstall
drive cover.
NOTE:
Always
use factory
approved
belt
to assure
fit and long life.
Drive
cover
Belt
PUSH DOWN
TO ADJUST
HANDLE
The handle
can be mounted
in a high or
low position.
The mounting
holes in the
bottom
of lower handle
are off center
for
raising
or lowering
the handle.
1.
Remove
upper
handle
and wire tie(s)
securing
cable(s)
to lower handle.
2.
Remove
hairpin
cotters
from lower
handle
bracket
mounting
pin.
3.
Squeeze
lower
handle
in to remove
it
from mounting
pins.
4.
Turn lower handle
over to raise or
lower handle.
5.
Squeeze
lower
handle
in and position
holes onto mounting
pins on handle
bracket.
6.
Reassemble
upper
handle
and all
parts removed
from lower
handle.
Mowing
_.
Mowing
position
["i
:)osition
HairpinX\_
'_
cotter
Hand,e
Mounting-_ _--_j
bracket
pin
_
14
LOW POSITION
HIGH POSITION

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