Craftsman 917.258694 Owner's Manual page 23

SERVICE ADJUSTMENTS
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 25)
Park the tractor on level surface. Engage parking brake.
,, Remove mower ddve belt (See'q'o REPLACE MOWER
DRIVE BELT" in this section of this manual).
- Remove mower (See "TO REMOVE MOWER" in this
section of this manual).
- Remove four screws from R.H. mandrel cover and
remove cover. Unhook spring from bolt on mower
housing.
o Carefully roll belt off R.H. mandrel pulley.
,, Remove belt from center mandrel pulley, idler pulley,
and L.H. mandrel pulley.
Remove any dirt or grass which may have accumu-
lated around mandrels and entire upper deck surface.
" Check secondary idler arm and idler to see that they
rotate freely.
= Be sure spring is hooked in secondary idler arm and
sway-bar bracket.
• Install new belt in lower groove of L.Ho mandret pulley,
idler pulley, and center mandrel putiey as Chown.
• Roll belt over R.H. mandrel pulley. Make sure belt is in
al! grooves properly.
• Reconnect spring to bolt in mower housing and rein-
stall R.H. mandrel cover.
- Reinstal! mower to tractor (See "iNSTALL MOWER
AND DRIVE BELT" in the Assembly section of this
manual).
• Reassemble mower ddve belt (See "TO REPLACE
MOWER DRWE BELT" in this section of this manua 0,
MOWER
LH. BLADE CENTER
MANDREL DRIVE BELT MANDREL
IDLER
PULLEY
R_N.
MANDREL
COVER
IDLER ARM
SWAY_BAR _.
BRACKET
FIG. 25
SCREW
TO ADJUST ATTACHMENT CLUTCH (See
Fig. 26)
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 s{ot
locations cut in the side of brake plate.
NOTE: After installing a new electric clutch, run tractor at
ful! throttle and engage and disengage electric clutch 10
cycles to wear in clutch plate.
ROTOR CLUTCH ELATE
NYLON BRAKE
LOCKNUT(3) PLATE
FiG. 26
TO ADJUST BRAKE (See Fig. 27)
Your tractor is equipped with an adjustable brake system
which is mounted on the side of the trensaxle.
tf tractor requires more than six (6) feet stopping distance
at high speed in highest gear, 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 1-3/4", loosen jam nut and turn
nut A until distance becomes 1-3/4'L Retighten jam
nut against nut "A".
, Road test tractor for proper stopping distance as stated
above. Readjust if necessary, if stopping distance Js
still greater than six (6) feet in highest gear, further
maintenance is necessary. Contact your nearest au-
thorized service center/department.
WiTH PARKING BRAKE "ENGAGED"
:OPERATING
i !, ARM
DO NOT TOUCH THtS NUT. iF FURTHER BRAKE ADJUST-
MENT iS NECESSARY CONTACT YOUR NEAREST AUTHO-
RIZED SERVICE CENTER/DEPARTMENT
FIG. 27
23
TO REPLACE MOTION DRIVE E_ELT
(See Fig. 28)
Park the tractor on tevel surface. Engage parking brake.
For assistance, there is a belt installation guide decal on
bottom side of left footrest.
, Remove mower (See "TO REMOVE MOWER" in this
section of this manual.)
• Disconnect clutch wire harness.
• Remove clutch Iocator.
• Remove upper belt keeper.
, Remove belt from stationary idter and clutching idler.
Pull belt slack toward rear of tractor. Carefully remove
belt upwards from transmission input pulley and over
cooling fan blades.
, Pull belt toward front of tractor and remove downwards
from around electric clutch.
,, Install new belt by reversing above procedure.