Clutch Slipping - Allis-Chalmers HD-14 Instruction Book

SUP,P'LEMENT
MASTER CLUTCH
(Atwood Type - effective H.D.-14 - 2272 and up)
In order to obtain maximum clutch
life~ the maste~ clutch should be kept
aajusted so that a pull of approximately
80 pounds is required on lever to engage
the clutch (with engine stopped). With
the engine at rated governed speed this
lever pull will be reduced to approxi-
mately 65 pounds.
A. Master Clutch Adjustment.
1. Remove the inspection covers from
the rear fender and engine spacer
on either right or left side of
tractor.
2. Disengage the clutch and turn the
engine until the T!adjustinglock
screwT!may be reached through the
inspection hole.
3. With a 9/16T!wrench loosen T!adjust-
ing lock screw" but _QQ_ NOT REMOVE.
4. Using short pry bar, turn T!clutch
adjusting ringT!clockwise to tight-
en. (Rotating the T!adjustingringT!
3/4T!to IT! is generally sufficient
movement to make proper adjustment).
5. When proper clutch adjustment has
been made (approximately 80 pounds
lever pull) lock T!adjustingringT!
by tightening T!adjusting lock
scr-ewr' .
6. Replace ins_pection hole cover plates.
NOTE: NEVER OPERATE A TRACTOR
~THE
CLUTCH SLIPPING.
MASTER CLUTCH BRAKE
~ Proper setting of the master clutch
brake must be maintained to avoid gear
clashing. With clutch properly adjusted
and in engaged position set clutch brake
with clearance of 1-1/8T!to 1-1/4T!be-
tween release collar and brake assembly,
Inspect clutch brake lining periodically.
Badly worn lining will score release
collar face. Renew when necessary.
B. Master Clutch Brake Adjustment.
1.
Remove locking wire.
2. Loosen locking screw and clamping
bolts.
3. Engage master clutch.
4. Move brake assembly on shaft until
space between clutch throw-out
assembly and face of clutch mea-
sures l-l/ST!to 1-1/4T!.
5. Tighten clamping bolts and then
tighten locking screw.
6. Install lock wire th~ough head of
set screw and around shaft.