To Replace Mower Blade Drive Belt; To Adjust Brake; To Replace Motion Drive Belt - Craftsman 3One 917.254860 Owner's Manual

SERVICE AND ADJUSTMENTS
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 24}
The mower blade drive belt may be replaced without
tools. Park the tractor on level surface. Engage parking
brake. For assistance, there is a belt installation guide
decal on the mower housing.
BELT REMOVAL -
, Place attachment dutch in "DISENGAGED" position.
, Move attachment lift lever forward to lower mower to
its _owest position.
, Ro!t belt off engine puitey.
o 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 ail purJey grooves and inside atl
belt guides.
WiTH PARKING BRAKE "ENGAGED"
NUT "A"
JAM NUT
OPERATING
ARM
MANDREL IDLER
PULLEY PULLEYS
ENGINE PULLEY
I\
FIGo24
FIG. 25
TO REPLACE MOTION DRIVE BELT
(See Fig. 26)
Park the tractor on leve] surface. Engage parking brake.
For assistance, there is a belt instaJiation guide decal on
bottom side of left footrest.
• Remove mower (See "TO REMOVE MOWER" in this
section of this manual.)
Remove upper belt keeper.
o Remove belt from stationary idler and clutching idler.
o Pull bett slack toward rear of tractor. Remove belt
upwards from transa×le pu!ley by deflecting belt keep-
ers.
Pu!l belt toward front of tractor and remove downwards
from around engine pulley.
. Install new be!t by reversing above procedure.
iMPORTANT: MAKE SURE UPPER BELT KEEPER IS
POSITIONED PROPERLY BETWEEN LOCATOR TABS.
TO ADJUST BRAKE (See Fig. 25)
Your unit is equipped with an adjustable brake system
which is mounted on the right side of the transaxle.
If unit 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.
o If distance is other than 1-1/2 '', disengage parking
brake, loosen jam nut and turn nut "A" until distance
becomes t-1/2". Retighten jam nut against nut "A".
• Engage parking brake and recheck distance.
® Road test unit 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.
PULLEY
IDLER
STATIC
IDLER
PULLEY
TABS
BELT
KEEPER
21 FIG. 26