To Replace Mower Blade Drive Belt; To Replace Motion Drive Belt; To Check Brake - Craftsman 917.28870 Operator's Manual

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 mowerfrom tractor (See"TO RE-
MOVE MOWER" in this section of manual).
2. Work belt off both mandrel pulleys and
idler pulleys.
3. Pull belt away from mower.
,
3.
Mandrel
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
BELT INSTALLATION -
1. Install new belt from tractor rear to front,
over the steering plate (H) and above
clutch brake pedal shaft (J).
2. Pull belt toward front of tractor and roll belt
around electric clutch and onto engine
pulley (G).
3. Pull belt toward rear of tractor. Carefully
work belt down around transmission
cooling fan and onto the input pulley (F).
Be sure belt is inside the belt keeper.
4. Install belt on centerspan idler (E).
5. Install belt through stationary idler (C)
and clutching idler (D).
6. Reinstall anti-rotation link (B) on right
side of tractor. Tighten securely.
7. Reconnect clutch harness (A).
8. Make sure belt is in all pulley grooves
and inside all belt guides and keepers.
9. Install mower (See "TO INSTALL MOW-
ER" in this section of manual).
Mandrel
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. Disconnect clutch wire harness (A).
3. Remove anti-rotation link (B) on right
side of tractor.
4. Remove belt from stationary idler (C)
and clutching idler (D).
5. Remove belt from centerspan idler (E).
6. Pull belt slack toward rear of tractor.
Carefully remove belt upwards from
transmission input pulley and over cool-
ing fan blades (F).
7. Remove belt downward from engine
pulley and around electric clutch (G).
8. Slide belt toward rear of tractor, off the
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 disen-
gaged" 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.
steering plate (H) and remove from tractor.
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