Craftsman 917.378480 Owner's Manual page 14

6.75 horsepower power-propelled 21" rear discharge rotary lawn mower
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TO REMOVE
DRIVE
BELT
1. Remove drive cover and belt keeper.
2.
Remove belt from gearcase pulley by
pushing down on pulley and rolling belt
off it.
3. Turn lawn mower on its side with air
filter and carburetor down.
4.
Remove blade and 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 belt keeper and drive cover.
NOTE: Always use factory approved belt
to assure fit and long life.
Drive
cover
Belt keeper
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.
NOTE: The upper handle has an "anti-
fold" bracket
located on the left side of the
handle.
This bracket prevents the upper
handle from folding
forward, which helps
protect
control cable(s) from damage.
1. Remove upper handle and all parts
attached 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
_on
i<i
:)osition
f'_?
''
/ ./'
cotter--
_I_'N_'_
Handle
Mounting' _=_
bra_et
pin
LOW POSITION
HIGH POSITION
ENGINE
ENGINE
SPEED
Your engine speed has been factory set.
Do not attempt to increase engine speed
or it may result in personal injury. If you
believe that engine is running too fast or
too slow, take your mower to a Sears or
other qualified
service center for repair
and adjustment.
CARBURETOR
Your carburetor
is not adjustable.
If your
engine does not operate p roperly due to sus-
pected carburetor
problems,
take your lawn
mower to a Sears or other qualified
service
center for repair and/or adjustment.
IMPORTANT;
Never tamper with the
engine
governor,
which is factory set
for proper engine speed.
Overspeeding
the engine above the factory
high speed
setting can be dangerous.
If you think
the engine-governed
high speed needs
adjusting,
contact a Sears or other
qualified
service
center, which has proper
equipment
and experience
to make any
necessary
adjustments.

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