Sears 917.25559 - Manual (Page 20)

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
deca! on the mower housing.
BELT REMOVAL -
Place attachment clutch in "DISENGAGED“ position.
Move attachment lift lever forward to lower mower to
its lowest position.
Roil belt off engine pulley.
Disconnect -R.H. suspension arm from rear deck
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 PULLEY R.H. SUSPENSION ARM ENGINE PULLEY
F!G. 24
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 dutch/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", disengage parking
brake, ioosen jam nut and turn nut "A" until distance
becomes 1-1/2". 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.
TO REPLACE MOTION DRIVE BELT (See
Figs,
26 & 27)
Park the tractor on level surface. Engage parking brake.
For ease of service, remove rear drawbar from chassis
and belt keeper from transmission input pulley. 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 belt from stationary idler and clutching idler.
• Remove clutch locator.
• Disconnect clutch wire harness.
• Rotate clutch assembly enough to allow belt to be
removed downwards off engine pulley, under belt
keeper, and around clutch assembly.
• Remove belt carefully upwards from transmission
input pulley and over cooling fan blades.
• Install new belt by reversing above procedure.
IMPORTANT: REPLACE ONLY WITH BELT LISTED
IN THIS MANUAL.
DRAWBAR BELT KEEPER
FAN
MOTION DRIVE
BELT
INPUT
PULLEY
FIG. 26
20