Wheel Cylinder-Removal, Overhaul And Installation - Jeep cherokee 1989 Owner's Manual

into the hole at the bottom of the
primary shoe
cloth or if any of the other conditions listed above exist, the drum must
be taken to an automotive machine shop t o have it turned. Mote: Pro-
fessionals recommend resurfacing the drums whenever a brakejob is
done. Resurfacing will eliminate the possibility of out-of-round drums.
exceeding the maximum allowable diameter (stamped into the drum)
(see illustration), then new ones will be required. At the very least,
if you elect not to have the drums resurfaced, remove the glazing from
the surface with medium-grit emery cloth using a swirling motion.
6 Once the new shoes are in place, install the drums on the axle
flanges. Remove the rubber plugs from the brake backing plates.
7 Insert a narrow screwdriver or brake adjusting tool through the
adjustment hole and turn the star wheel until the brakes drag slightly
as the drum is turned (see illustration).
8 Turn the star wheel in the opposite direction until the drum turns
freely. Keep the adjuster lever from contacting the star wheel or
turn. This can be done by pushing on it with a narrow screwdriver.
9
Repeat the adjustment on the opposite wheel and install the back-
ing plate plugs.
6.5 The maximum allowable drum diameter is cast into
the drum
The Motor Manual Guy
Chapter 9 Brakes
and cable into the adjuster lever and pull
the cable down and t o the rear, inserting
the hook on the lever into the hole
in the secondary shoe
10 Mount the wheel, install the lug nuts, then lower the vehicle.
Tighten the lug nuts t o the torque specified in Chapter 1.
to further adjust themselves.
1 2 Check brake operation before driving the vehicle in traffic.
7
Wheel cylinder
Note: If an overhaul is indicated (usually because of fluid leakage or
sticky operation) explore all options before beginning the job. New
wheel cylinders are available, which makes this job quite easy. If it's
decided to rebuild the wheel cylinder, make sure that a rebuild kit is
available before proceeding. Never overhaul only one wheel cylinder
always rebuild both of them at the same time.
it won't
6.7 Using a screwdriver or brake adjuster tool, turn the adjuster
wheel in the direction shown until the shoes drag on the brake
drum; then, insert a small screwdriver through the backing plate
to move the adjuster lever away from the adjuster wheel and turn
the wheel in the opposite direction until the drum turns freely
the shoes are centered on the
backing plate
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removal, overhaul and installation
MOVE HANDLE
DOWNWARD
BRAKE SHOES
9-1 1
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