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BRAKES
5-3
Condition
Possible Cause
Correction
Pulls
1. Incorrect tire
pressures.
2. Front end out of line.
3. Unmatched tires on same
axle.
For radial tire
lead refer to Section 3.
4. Restricted brake tubes
or hoses.
5. Malfunctioning caliper
assembly.
6. Defective or damaged
shoe and lining
(grease or brake
fluid on lining
or bent shoe).
7. Malfunctioning rear
brakes.
8. Loose suspension parts.
9. Loose calipers.
1. Inflate evenly on both
sides to the recommended
pressures.
2. Check and align to
manufacturer's specifications.
3. Tires with approximately
the same amount of tread
should be used on the
same axle.
4. Check for soft hoses and
damaged lines. Replace with
new hoses and new
double-walled steel brake
tubing.
5. Check for stuck or
sluggish pistons, proper
lubrication.
6. Install new shoe and
lining in complete axle
sets.
7. Check for inoperative
auto adjusting mechanism,
defective lining (grease
or brake fluid on lining)
or defective wheel
cylinders. Repair as
necessary.
8. Check all suspension
mountings.
9. Check and torque bolts
to specifications.
Noise (high pitched
without brake
applied).
1. Front linings worn out.
1. Replace linings.
Brake Roughness or
or Chatter
(Pedal Pulsates)
1. Excessive lateral
runout.
2. Parallelism not within
specifications.
3. Wheel bearings not
adjusted.
4. Rear drums out of
round.
1. Check per instructions
and replace or machine the
rotor, if not within
specifications.
2. Check per instructions and
replace or machine the rotor,
if not within specifications.
3. Adjust wheel bearings to
correct specifications.
4. Check runout and, if not
within specifications, turn
the drums (not over
maximum of 0.060 on the
diameter).
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