To Adjust Attachment Clutch; To Adjust Brake; To Replace Motion Drive Belt - Craftsman EZ3 917.273070 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/
deparlment.
1. Make sure attachment clutch and
ignition switches are in "OFF" position•
2. 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•
R°tor _ Clutch Plate '_J.012 .
N ,ion_/'_ Slot (3)._--..-._===_. _
_cknut (3_"_ "_ I 'B'_rake
_ Plate
lib
TO ADJUST BRAKE
Your tractor is equipped with an adjustable
brake system which is mounted on the left
side of the transaxle.
If tractor requires more than six (6) feet
stopping distance at high speed in highest
gear, then brake must be adjusted.
1. Depress clutch/brake pedal and
engage parking brake•
2. Measure distance between brake
operating arm and nut "A" on brake rod.
3. If distance is other than 1-3/4", loosen
jam nut and turn nut "A" until distance
becomes 1o3/4". Retighten jam nut
against nut "A".
4. 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 necessary.
Contact your nearest authorized
service center/deDartrnent.
IL22,../ ,ot-A.
WithParking ,,'_,_ ' J
Brake Engaged _ _,,_ Jam Nut
'-_Operating
;_'_ _ ",_. Arm
,,;, _r,_._/_. ,
26
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. It is not necessary
to remove mower,
BELT REMOVAL-
1. Engage parking brake (creates slack
in belt).
2. Remove mower drive belt from
electric clutch pulley only (See "TO
REPLACE MOWER DRIVE BELT" in
this section of this manual).
3. Roll motion drive belt off transaxle
pulley.
4. Roll belt off clutching idler pulleys,
then off engine pulley and front V-
id|er pulley.
5. Pull belt out of all belt keepers.
BELT INSTALLATION -
1. Place V part of belt into grooves on
engine pulley and front V-idler,
making sure to route belt inside of
belt keepers.
2. Put belt coming from V-idler above
midspan belt keeper, then onto
clutching idler pulleys as shown.
3. Make sure V part of belt engages V-
idler.
4. Place belt around transaxle pulley,
beginning at top.
V part of belt should engage
transaxle pulley.
5. Piece long lower section of belt
through loop in midspan belt keeper•
6. Check to be sure belt is on proper
side of all belt keepers•
7. Reinstall mower drive belt onto
electric clutch pulley.
IMPORTANT: Check Brake Adjustment
Clutching Flat Idler.
Engine
Belt
n Keeper I Belt Transa_le
_--'_ EngineI Twists Belt Pulley
_'l"J .,LPuIIey I Keeper
_-_As Viewed from Bottom