To Replace Mower Blade Drive Belt; To Replace Motion Drive Belt; To Adjust Brake - Craftsman 917.252451 Owner's Manual

SERVHCE AND ADJUSTMENTS
WITH PARKING BRAKE "ENGAGED"
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 23)
The mower blade drive belt may be replaced without tools,,
Park the tractor on level surface, Engage parking brake.
BELT REMOVAL -
• Place attachment clutch in "DISENGAGED" position.
• Move attachment lift lever forward to lower mower to its
lowest position.
o Roll belt off engine pulley.
o Disconnect R H, suspension arm from reardeck bracket
by removing retainer spring.
• Work belt off both mandrel pulleys and idler pulleys.
• Pull belt away from mower.
BELT INSTALLATION -
° Install new belt in reverse order of removal
. Make sure belt is in all pulley grooves and inside all belt
guides.
MANDREL
IDLER ENGINE
PULLEYS PULLEY
_R.H.
'_ SUSPENSION
ARM
SPRING
MANDREL ,,
PULLEYS
FIG. 23
TO ADJUST BRAKE
(See Fig. 24)
Your tractor is equipped with an adjustable brake system
which is mounted on the right side of the transaxle.
If tractor requires more than six (6) feet stopping distance
at high speed in highest gear, then brake must be adjusted.
• Depress clutch/brake pedal and engage parking brake.
Measure distance between brake operating arm and
nut "A" on brake rod.
If distance is other than 1-1/2", loosen jam nut and turn
nut "A" until distance becomes 1-1/2". Retighten jam
nut against nut "A"
Road test tractor for proper stopping distance as stated
above_ Readjust if necessary, If stopping distance is
still greater than six (6) feet in highest gear, further
maintenance is necessary, Contact your nearest au-
thorized service center.
NUT"A"
JAM
NUT
OPERATING
ARM
FIG. 24
TO REPLACE MOTION DRIVE BELT
(See Fig. 25)
Park the tractor on level surface_ Engage parking brake
For assistance, there is a belt installation guide decal on
bottom side of left footrest.
Remove mower (See "TO REMOVE MOWER" in this
section of this manuaL)
Remove upper belt keeper.
° Remove belt from stationary idler and clutching idler.
Pull belt slack toward rear of tractor. Remove belt
upwards from transaxle pulley by deflecting belt keep-
ers.
° Pull belt toward front of tractor and remove downwards
from around engine pulley.,
• Install new belt by reversing above procedure°
IMPORTANT: MAKE SURE UPPER BELT KEEPER IS
POSITIONED PROPERLY BETWEEN LOCATOR TABS.
ENGINE'----.
PULLEY
CLUTCHING
IDLER
STATIONARY .''I
IDLER
PULLEY
_f
J
_LOCATOR
TABS
UPPER BELT
KEEPER
21 FIG. 25