Sears 917.25271 Lawn Mower User Manual


 
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SERVICE AND ADJUSTM NTS
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TO REPLACE MOTION DRIVE BELT
(See Fig. 28)
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 '30 REMOVE MOWER" in this
section of this manual.)
Remove upper belt keeper.
Remove belt from stationary idler and clutching idler.
Pull belt slack toward rear oftractor. Carefully remove
belt upwards from transmission input pulley and over
cooling fan blades.
Pull belt toward front of tractor and remove downward
from around engine pulley.
Install new belt by reversing above procedure.
IMPORTANT: MAKE SURE UPPER BELT KEEPER IS
POSITIONED PROPERLY BETWEEN LOCATOR TABS.
ENGINE----..,_I
-iT-
,c u c.,NG
li (
,_ LOCATOR
TABS
_" UPPER BELT
KEEPER
FIG. 28
TO ADJUST MOTION CONTROL LEVER
(See Fig. 29)
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
position while at a selected speed, it may be adjusted atthe
friction pack located on the right side of transmission.
Park tractor on level surface. Stop tractor by turning
ignition key to "OFF" position, and engage parking
brake.
Adjust motion control lever by tightening adjustment
Iocknut one half (1/2) turn.
NOTE: If for any reason the effort to move the motion
control lever becomes too excessive, reverse the above
adjustment procedure by loosening Iocknut 1/4 to 1/2 turn.
Road test tractor after adjustment and repeat procedure if
necessary.
\
ADJUSTMENT
LOCKNUT
FIG. 29
TRANSMISSION REMOVAL/REPLACEMENT
Should your transmission require removal for service or
replacement, it should be purged after reinstallation and
before operating the tractor. See "PURGE TRANSMIS-
SION" in Operation section of this manual.
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