Belt Installation - Craftsman 917.28922 Operator's Manual

21.0 hp 42" mower electric start automatic transmission
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TO REPLACE MOWER BLADE DRIVE BELT
The mower blade drive belt may be replaced
without tools. Park the tractor on level sur-
face.
Engage parking brake.
BELT REMOVAL
-
1. Remove mowerfromtractor
(See"TO RE-
MOVE MOWER"inthissection
of manual).
2. Work belt off both mandrel
pulleys
and
idler pulleys.
3. Pull belt away from mower.
.
3.
Mandrel
Pulley
BELT INSTALLATION
-
1. Work belt around
both mandrel
pulleys
and idler pulleys
Make sure belt is in all pulley grooves
and inside all belt guides.
Install mower (See "To Install Mower" in
this section
of this manual).
Idler
Mandrel
2.
Pull belt toward
front of tractor and roll
belt onto engine pulley (E).
3.
Pull belt toward
rear of tractor. Carefully
work
belt
down
around
transmission
cooling fan and onto the input pulley (D).
Be sure belt is inside the belt keeper.
4.
Install belt on centerspan
idler (C),
5.
Install
belt through
stationary
idler (A)
and clutching
idler (B).
6. Make sure belt is in all pulley
grooves
and inside all belt guides and keepers.
7. Install mower (See "TO INSTALL MOW-
ER" in this section
of manual).
TO REPLACE MOTION DRIVE BELT
Park the tractor on level surface. Engage
parking brake. For assistance, there is a
belt installation guide decal on bottom side
of left footrest.
BELT REMOVAL-
1. Remove
mower
(See
"TO
REMOVE
MOWER"
in this section of manual).
NOTE: Observe entire motion drive belt and
position of all belt guides
and keepers.
2,
Remove beltfrom
stationary
idler (A) and
clutching
idler (B).
3.
Remove
belt from centerspan
idler (C).
6.
Pull belt slack
toward
rear of tractor.
Carefully
remove
belt
upwards
from
transmission
input pulley and over cool-
ing fan blades
(D).
4. Remove
belt
downward
from
engine
pulley (E),
5. Slide belt toward
rear of tractor, off the
steering plate (F) and remove from tractor.
BELT INSTALLATION -
1. Install new belt from tractor rear to front,
over the steering plate (F) and above
TO CHECK BRAKE
If tractor
requires
more than five (5) feet to
stop at highest speed in highest gear on a
level, dry concrete or paved surface, then
brake must be serviced.
You may also check brake by:
1. Park tractor on a level, dry concrete or
paved surface, depress brake pedal all
the way down and engage parking brake.
2. Disengage
transmission
by placing
freewheel
control in "transmission
dis-
engaged" position. Pull freewheel control
out and into the slot and release so it is
held in the disengaged
position.
The rear wheels must lock and skid when
you try to manually push the tractor forward.
If the rear wheels
rotate, then the brake
needs to be serviced. Contact
a Sears or
other qualified service center.
FRONT WHEEL TOE-IN/CAMBER
Your new tractorfront wheel toe-in and cam-
ber is set at the factory and is normal. The
frontwheel toe-in and camber are notadjust-
able. If damage has occurred to affect the
factory set front wheel toe-in or camber, con-
tact a Sears or other qualifiedservice center.
clutch brake pedal shaft (G).
24

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