Craftsman 917.274990 - Manual (Page 24)

L.H.
Mandrel
Cover
Screws
Electric
Clutch
Pulley
L.H
Mandrel
Mower
Drive Belt
Belt
Keepers
TO REPLACE MOWER BLADE DRIVE
BELT
Park the tractor on level surface,
parking brake.
1
. “
Engage
Mower Blade
L D r i v e Belt
Mandrel
Center
Mandrel
R.H. Mandrel
Cover
Screw
Secondary
Idler Arm
Spring
Sway Bar
Bracket
Idler
Pulley
Remove rnower 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
manual).
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
pulley.
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 L.H.
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
properly.
11 .Reconnect spring to bolt in mower
housing and reinstall R.H. mandrel
cover.
12. Reinstall mower to tractor (See
“INSTALL MOWER AND DRIVE
BELT in the Assembly section of this
manual).
• Reassemble mower drive belt (See
‘TO REPLACE MOWER DRIVE BELT
in this section of this 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 shouid be made by a Sears
or other qualified sen/ice center.
1. Make sure attachment clutch and
ignition switches are in “OFF’ position.
2. Adjust the three nylon locknuts 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.
Rotor
Nylon
Locknut (3'
24
TO ADJUST BRAKE
Your tractor is equipped with an adjustable
brake system which is mounted on the left
side of the transaxle.
If tractor r^uires more than six (6) feet
stopping distance at high speed in highest
gear on a level dry concrete or paved
surface, 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 1-3/4". Retighten jam nut
against nut "A".