Sears 917.257643 Lawn Mower User Manual


 
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AND ADJUSTM
WITHPARKINGBRAKE"ENGAGED"
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 25)
The mower blade drive belt may be replaced without toots_
Park the tractor on level surface° Engage parking brake.
BELT REMOVAL -
Place attachment clutch in "DISENGAGED" position,
° Move attachment lift lever forward to lowermowerto its
_owestposition°
Roll belt off engine pulley_
o Work bett off both mandrel pulleys and idler' pulley.
o Pull belt away from mower.
BELT INSTALLATION -
{nstall new belt in reverse order of removal.
= Make sure belt is inalt pulley grooves and insideall belt
guides,
NUT "A"
AM NUT
TING ARM
FIG. 26
MANDREL IDLER
PULLEY PULLEY
MANDREL
PULLEY
FIG. 25
TO ADJUST BRAKE (See Fig. 26)
Your tractor'is equipped with an adjustable brake system
whichis mounted on the right side ofthe transaxle,
If tractor requiresmore than six (6) feet stopping distance
at high speed in highest gear, then brake mustbe adjusted°
o Depressclutch,'10rakepedaland engage parkingbrake°
Measure distance between brake operating arm and
nut "A" on brake rod.
° If distance is other than 1-1/2", disengage parking
brake, loosen jam nut and turn nut "A" until distance
becomes 1-1/2". Retightenjam nut against nut "A".
° Engage parking brake and recheckdistance.
° Road testtractorforproperstoppingdistanceas stated
above., Readjust if necessary. If stopping distanceis
still greater than six (6) feet in highest gear',further
maintenance isnecessary_. Contact your nearest au-
thorized service center_'department_
TO REPLACE MOTION DRIVE BELT
(See Fig. 27)
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 'q'O REMOVE MOWER" in this
section of this manuaL)
° Remove upper belt keeper,
° Remove beRfrom stationary idler and clutching idler_
° Pull belt slack toward rear of tractor, Remove belt
upwards from transaxle pulley by deflecting belt keep-
ers,,
° Pul]belt toward front oftractorand remove downwards
from around engine pulley.
° Installnew belt by reversing above procedure.,
IMPORTANT; MAKE SURE UPPER BELT KEEPER IS
POSITIONED PROPERLY BETWEEN LOCATOR TABS.
CLUTCHING
IDLER
STATIONARY "*""
IDLER
TRANSAXLE
PULLEY " "_,
0
° .
LOCAi'OR
TABS
UPPER BELT
KEEPER
22
FIG, 27