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JR
DRUM (Continued)
NOTE: If rust or any foreign material is present on
hub, drum or wheel mating surfaces, wet wire brush
these areas to remove prior to assembly of parts.
(1) Properly remove any buildup formed along
outer edge of drum's machined braking surface.
(2) Adjust brake shoes to drum diameter using a
brake shoe gauge. (Refer to 5 - BRAKES/HYDRAU-
LIC/MECHANICAL/BRAKE
ADJUSTMENTS)
(3) Install brake drum on rear hub and bearing
(Fig. 41).
(4) Install tire and wheel assembly. Tighten wheel
mounting nuts to 135 N·m (100 ft. lbs.) torque.
(5) Lower vehicle.
(6) Road test vehicle stopping in both forward and
reverse directions. Automatic-adjuster will continue
to adjust brakes as necessary during road test.
FLUID
DIAGNOSIS AND TESTING - BRAKE FLUID
CONTAMINATION
Indications of fluid contamination are swollen or
deteriorated rubber parts.
Swollen rubber parts indicate the presence of
petroleum in the brake fluid.
To test for contamination, put a small amount of
drained brake fluid in clear glass jar. If fluid sepa-
rates into layers, there is mineral oil or other fluid
contamination of the brake fluid.
If brake fluid is contaminated, drain and thor-
oughly flush system. Replace master cylinder, propor-
tioning valve, caliper seals, wheel cylinder seals,
Antilock Brakes hydraulic unit and all hydraulic
fluid hoses.
STANDARD PROCEDURE - BRAKE FLUID
LEVEL CHECKING
Brake fluid level should be checked a minimum of
twice a year.
PADS/SHOES
-
Master cylinder reservoirs are marked, FULL and
MIN, indicating the allowable brake fluid level range
in the master cylinder brake fluid reservoir.
CAUTION: Use only Mopar brake fluid or an equiv-
alent from a tightly sealed container. Brake fluid
must conform to DOT 3 specifications. Do not use
petroleum-based fluid because seal damage in the
brake system will result.
Although there is a range, the preferred level is
FULL. If necessary, adjust the brake fluid level,
bringing it to the FULL mark on the side of the mas-
ter cylinder brake fluid reservoir.
SPECIFICATIONS
BRAKE FLUID
The brake fluid used in this vehicle must conform
to DOT 3 specifications and SAE J1703 standards.
No other type of brake fluid is recommended or
approved for usage in the vehicle brake system. Use
only Mopar brake fluid or an equivalent from a
tightly sealed container.
CAUTION: Never use reclaimed brake fluid or fluid
from an container which has been left open. An
open container will absorb moisture from the air
and contaminate the fluid.
CAUTION: Never use any type of a petroleum-based
fluid in the brake hydraulic system. Use of such
type fluids will result in seal damage of the vehicle
brake hydraulic system causing a failure of the
vehicle brake system. Petroleum based fluids would
be items such as engine oil, transmission fluid,
power steering fluid, etc.
BRAKES - BASE
5 - 25
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