Generator Belt - Allis-Chalmers HD-14 Instruction Book

FAN BELT
To adjust the fan belts, loosen the
large nut at the rear end of the fan shaft
and loosen the lock nut on the adjusting
screw. Turn the hand screw clockwise to
tighten the belts or counter-clockwise to
loosen the belts. Tighten large nut se-
curely, then tighten the top lock nut af-
ter the belts have been adjusted. The
belts have about 1-1/4" slack measured
halfway between the two pulleys when the
belts are correctly adjusted. Fan belts
too tight will cause bearing failure.
SPROCKET SHAFT BEARING ADJUSTMENT
The sprocket shaft bearings should
be adjusted every 800 hours. If the trac-
tor is working under abnormal conditions
such as In mUd, water or dust, the bear-
ings should be adjusted every 400 hours
or less.
If the bearings are allowed to be-
come loose the sprocket will not run in
line and will cause serious damage to the
sprocket shaft bearings and final drIve
011 seals.
For proper adjustment
follows:
1. Loosen the clamp screw in the clamp
nut only enough so that the nut still
Is hard to turn wIth the wrench.
2. Using a four foot extension on the
wrench, tighten the nut until the
bearIngs are tIght.
3. Back off the clamp nut 1/6 of a turn
for bearing clearance; tighten the
clamp screw securely using an exten-
sion on the Allen-head wrench.
proceed as
GENERATOR BELT
To adjust the generator belt. loosen
the capscrew through the adjusting link as
shown. Move the generator in or out as nec-
essary to correct the adjustment. The ad-
justment is correct when the belt has about
1 inch slack measured halfway between the
pulleys. Too tight a belt will cause bear-
ing failure and undue wear on belt. When
adjustment has been completed tighten ad-
justing link capscrew.
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