Craftsman 917.275970 Owner's Manual page 25

TO REPLACE MOWER BLADE DRIVE
BELT
Park the tractor on level surface. Engage
parking brake.
1. Remove mower drive belt (See "TO
REPLACE MOWER DRIVE BELT" in
this section of this manual).
2. Remove mower (See "TO REMOVE
MOWER" in this section of this man-
ual).
3, Remove screws from R.H. mandrel
cover and remove cover. Unhook
spring from bolt on mower housing.
4. Carefully roll belt off R.H. mandrel pul-
ley.
5. Remove belt from center mandrel
pulley, idler pulley, and L.H. mandrel
pulley.
6. Remove any dirt or grass which may
have accumulated around mandrels
and entire upper deck surface.
7. Check secondary idler arm and idler to
see that they rotate freely.
8. Be sure spring is hooked in secondary
idler arm and sway-bar bracket.
9. Install new belt in lower groove of LH.
mandrel pulley, idler pulley, and center
mandrel pulley as shown.
10. Roll belt over R.H. mandrel pulley.
Make sure belt is in all grooves prop-
erly.
11. Reconnect spring to bolt in mower
housing and reinstall R.H. mandrel
cover,
12. Reinstall mower to tractor (See "IN-
STALL MOWER AND DRIVE BELT" in
the Assembly sectien of this manual).
13. Reassemble mower drive belt (See
"TO REPLACE MOWER DRIVE BELT"
in this section of this manual).
Mower Blade
L U Drive Belt Center
.n. _ Mandrel
Man_
Secondary __;_
Idler Arm _ _
Sway Bar \
Bracket Idler
Pulley
R.H. Mandrel
Cover
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 a Sears
or other qualified service center.
1. Make sure attachment clutch and igni-
tion switches are in "OFF" position.
2. Adjust the three nylon Iocknuts until
space between clutch plate and rotor
measures .012" at all three slot loca-
tions 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.
_Rotor
! /\ c'°tch ,'ete L °12
Nylon_'[ Slot !3_'_ _
Locknut (3) -'--T- I Brake
_> _- Pate
TO CHECK AND ADJUST BRAKE
Your tractor is equipped with an adjustable
brake system which is mounted on the
right side of the transaxle.
If tractor requires more than five (5) feet to
stop at highest speed in highest gear on a
level, dry concrete or paved surface, then
brake must be checked and adjusted.
TO CHECK BRAKE
1. Park tractor on a level, dry concrete or
paved surface, depress clutch/brake
pedal all the way down and engage
parking brake.
2. Place gear shift lever in neutral (N)
position.
The rear wheels must lock and skid when
you try to manually push the tractor for-
ward. If the rear wheels rotate, the brake
needs to be adjusted or the pads need to
be replaced.
TO ADJUST BRAKE
1. Depress clutch/brake pedal all the way
down and engage parking brake.
2. Measure distance between brake oper-
ating 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 1-3/4". Retighten jam nut
against nut "A".
25