To Adjust Attachment Clutch; To Adjust Brake; To Replace Motion Drive Belt; Belt Removal - Craftsman 917.273221 Owner's Manual

TO ADJUST ATTACHMENT CLUTCH
The electric clutch should provide years
of service. The clutch has a built-in brake
that stops the pulley within 5 seconds.
Eventually, the internal brake will wear
which may cause the mower blades to
not engage, or, to not stop as required.
Adjustments should be made by your
nearest authorized service center/
department.
• Make sure attachment clutch and
ignition switches are in "OFF" position.
• Adjust the three nylon Iocknuts until
space between clutch plate and rotor
measures .012" at all three slot
locations cut in the side of brake plate.
NOTE: After installing a new electric
clutch, run tractor at full throttle and
engage and disengage electric clutch 10
cycles to wear in clutch plate.
12"
Rotor J Brake
Plate
Nylon L()cknut (3)/"
TO ADJUST BRAKE
Your tractor is equipped with an adjust-
able brake system which is mounted on
the right side of the transaxle.
If tractor requires more than six (6) feet
stopping distance at high speed in
hi_hestgear, then brake must be
adjusted.
• Depress clutch/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", loosen
jam nut and turn nut "A" until distance
becomes 1-1/2". Retighten jam nut
against nut "A".
• Road test tractor 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 neces-
sary. Contactyour nearest authorized
service center/department.
With Parking Brake "Engaged"
TO REPLACE MOTION DRIVE BELT
Park the tractor on level surface. Engage
parking brake. For ease of service there
is a belt installation guide decal on
bottom of left footrest.
• 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.
• Loosen belt keeper above transaxle
pulley.
• 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 V-idler, 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
transaxie pulley.
• Route belt on left side, coming from
engine pulley, towards back of tractor
and through loop in midspan 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.
• 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-Belt Drive Schematic
Viewed From L.H. Side of Tractor
Transaxle Pulley
Clutching
Eng ne
P U Clutching Flat Idler
u ey Above Belt
V-Idler
lut "A"
Jam Nut
Arm
Belt Keepers
, Belt Keeper
I• -r • _
_ Engine Pulley
' V iI_l_{_V-ldler
,I!_11_ _As Viewed From
26 , _,_ i Bottom
der