Sears Craftsman 917.251570 Owner's Manual page 24

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SERVmCE AND ADJUSTMENTS
TO REPLACE MOTION DRIVE BELT
(See Fig. 27)
Park the tlactor on level surface, Engage parking brake,
For ease of service there isa belt installationguide decal on
bottom of left footresL
o Remove mower (See "TO REMOVE MOWER" in this
section of this manual°)
BELT REMOVAL -
• Engage parking brake (creates slack in belt).
= Remove belt from clutching and fan idler pulleys.
• Remove belt from transaxle pulley_
= Remove belt from engine pulley and front V-idler
pulley.
= Pull belt out of all belt keepers and remove from tractor._
BELT INSTALLATION -
° Place V part of belt into grooves on engine pulley and
front Voidler, making sure to route belt inside of all belt
keepers°
• Route belt on right side, coming from V-idler, towards
back of tractor, above midspan belt keeper' and to top
of transaxle PUlley°
= Route belt on left side, coming from engine pulley,
towards back of tractor and through loop in rnidspan
belt keeper°
= Place V part of belt into grooves on transaxle and fan
idler pulleys, making sure to route belt inside of all belt
keepers.
• Place belt around clutching idlers as shown, making
sure to route belt inside of atl belt keepers°
o Check to be sure belt is positioned correctly and is on
proper side of all belt keepers.
o Reinstall mower.
IMPORTANT: CHECK BRAKE ADJUSTMENT
TRACTOR V-BELT DRIVE SCHEMATIC
' VIEWED FROM L,H. SIDE OF TRACTOR
CLUTCHING TRANSAXLE
CLUTCHING IDLER BELT
FLAT _ER
ENGINE
PULLEY
V-IDLER KEEPER
BELT
(EEPER
AS VIEWED FROM BOTTOM
BELT
TWISTS
BELT
KEEPER
FAN
IDLER
=
TO ADJUST MOTION CONTROL LEVER
(See Fig. 28)
The motion control lever has been preset at the factory and
adjustment should not be necessary..
if for any reason the motion control lever will not hold its
positionwhile at a selected speed, it may be adjusted at the
friction pack located on the right side of chassis.
= Park tractor on leveJ suffaceo Stop tractor by turning
ignition key to "OFF" position and engage parking
brake_
• Place motion control lever in neutral (N) position.
o While holding Iocknut, loosen jam nut
• Tighten focknut 1/4 turn..
o While holding Iocknut, tighten jam nut securely_
NOTE: If for any reason the effort to move the motion
control lever becomes too excessive, reverse the above
adjustment procedure by loosening locknut 1/4 tL_rn.
Road test tractor after adjustment and repeat procedure if
necessary.
LOCKNUT
JUT
FIG. 28
TRANSMISSION REMOVAL/REPLACEMENT
Should your transmission require removal for service or
repfacement, it shoutd be purged after' reinstallation before
operating the tractor_ See "PURGE TRANSMISSION" in
Operation section of this manual
TO ADJUST STEERING WHEEL
ALIGNMENT
If steering wheel crossbars are not horizontal (left to right)
when wheels are positioned straight forward, remove steer-
ing wheel and reassemble per instructions in the Assembly
section of this manual.
FIG. 27
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