Mower Drive Belt Removal - Craftsman 917.28734 Operator's Manual

Tighten adjust nut
B to raise mower
Loosen adjust
nut B to lower
mower
Loosen jam nut A first
NOTE: Each full turn of the adjustment
nut will change mower height about 1/8".
• Recheck measurements, adjust if nec-
essary until front tip of blade is 1/8" to
1/2" lower than the rear tip.
• Hold adjustment nut in position with
wrench and tighten jam nut securely
against adjustment nut.
To Replace Mower Drive Belt
MOWER DRIVE BELT REMOVAL
1. Park tractor on a level surface.
Engage parking brake.
2. Lower attachment lift lever to its
lowest position.
4. Remove any dirt or grass clippings
which may have accumulated
around mandrels and entire upper
deck surface.
5. Remove belt from clutch pulley(M),
both mandrel pulleys (R) and all idler
pulleys (S).
MOWER DRIVE BELT INSTALLATION
1. Install belt around both mandrel
pulleys (R) and around idler pulleys
(S) as shown.
2. Install belt onto clutch pulley (M).
IMPORTANT: Check belt for proper
routing in all mower pulley grooves.
3. Raiseattachmentliftlevertohighest
position.
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 belt from 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
cooling 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 clutch brake pedal shaft (G).
2. Pull belt toward front of tractor and roll
belt onto engine pulley (E).
3. Pull belt toward rear of tractor. Care-
fully work belt down around transmis-
sion 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
MOWER" in this section of manual).
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