Craftsman 917.258920 Owner's Manual page 24

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A ADJUSTMENTS
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TO REPLACE MOTION DRIVE BELT
(See Fig. 27)
Park the tractor on level surface. Engage'parkingbrake.
For ease of service there is a belt installationguide decal on
bottom of left footrest.
, Remove mower (See 'q'O REMOVE MOWER" in this
section of this manual°)
BELT REMOVAL -
• Engage parking brake (creates slack in belt).
o Remove belt from clutching and fan idler pulleys.
° Loosen belt keeper above transaxle pulley.
= Remove belt from transaxle pulley_
° Remove belt from engine pulley and front V-idler pul-
ley.
° Pullbelt out of all belt keepers and removefrom tractor.
BELT INSTALLATION -
° Place V part of belt into grooves on engine pulley and
front V-idler, making sure to route belt inside of all belt
keepers.
° Route belt on dght 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 mtdspan
belt keeper.
° Place V part of belt into grooves on transaxle and fan
idler pulleys, making sure to routebelt inside of all belt
keepers.
° Retighten belt keeper above transaxle pulley.
° Place belt around clutching idlers as shown, making
sure to route belt inside of all belt keepers,
° Check to be sure belt is positioned correctly and is on
proper side of all belt keepers.
° Reinstall mower.
IMPORTANT; CHECK BRAKE ADJUSTMENT.
TRACTOR V-BELTDRIVE SCHEMATIC
VIEWED FROM LH. SIDE OF TRACTOR
CLUTCHING TRANSAXLE
CLUTCHING BELT
ENGINE
PULLEY
V4DLER KEEPER
I BELT TWISTS
BELT
KEEPER
FAN
IDLER
AS VIEWED FROM BO'I-rOM
FIG. 27
TO ADJUST MOTION CONTROL LEVER
(See Fig. 28)
The motion controllever has been preset at the factory and
adjustment should not be necessary.
If for any reason the motion control lever will not hold its
positionwhileat a selected speed, itmay be adjusted at tile
friction pack located on the right side of chassis_
° Park tractor on level surface. 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 Iocknut 1/4 turn.
° 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 turn.
Road test tractor after adjustment and repeat procedure if
necessary,
LOCKNUT
JAM NUT'
FIG. 28
24
TRANSMISSION REMOVAL/REPLACEMENT
Should your transmission require removal for service or'
replacement, tt shouldbe purged after reinstatlationbefore
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 positionedstraightforward, remove steer-
ingwheel and reassemble per instructionsin the Assembly
section of this manual
FRONT WHEEL TOE-IN ADJUSTMENT
Front wheel toe-in isrequired for preper steering operation.
Toe-in was set at the factory and adjustment shouldnot be
necessary. If parts in the front axle or steering mechanism
have been replaced or damaged, check toe-in and-adjust
if necessary°
TO CHECK TOE-IN (See Fig. 29)-
° Positionfront wheels straight ahead.
° Measure distance between wheels at front and rear of
tires (dimensions "A" and "B").
° Front dimension "A" should be 1/8" to t/4" less than
rear dimension =B"_