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Jeep Liberty KJ. Manual - part 573

6. Rotate adjuster screw star wheel (move tool handle

upward) until slight drag can be felt when wheel is
rotated.

7. Push and hold adjuster lever away from star wheel

with thin screwdriver.

8. Back off adjuster screw star wheel until brake drag

is eliminated.

9. Repeat adjustment at opposite wheel. Be sure

adjustment is equal at both wheels.

10. Install support plate access hole plugs.

11. Adjust parking brake cable and lower vehicle.

12. Apply park brake hand lever and make sure park

brakes hold the vehicle staionary.

13. Release park brake hand lever.

REAR DRUM IN HAT PARK BRAKE
(ROTOR REMOVED)

Under normal circumstances, the only time adjustment is required is when the shoes are replaced, removed for
access to other parts, or when one or both rotors are replaced.

Adjustment can be made with a standard brake gauge or with adjusting tool. Adjustment is performed with the com-
plete brake assembly installed on the backing plate.

CAUTION: Before adjusting the park brake shoes be sure that the park brake pedal is in the fully released
position. If park brake pedal is not in the fully released position, the park brake shoes can not be accurately
adjusted.

1. Raise vehicle.

2. Remove tire and wheel.

3. Remove disc brake caliper from caliper adapter (Refer to 5 - BRAKES/HYDRAULIC/MECHANICAL/DISC BRAKE

CALIPERS - REMOVAL).

4. Remove rotor from the axleshaft (Refer to 5 - BRAKES/HYDRAULIC/MECHANICAL/ROTORS - REMOVAL).

NOTE: When measuring the brake drum diameter,
the diameter should be measured in the center of
the area in which the park brake shoes contact the
surface of the brake drum.

5 - 52

BRAKES - BASE - SERVICE INFORMATION

5. Using Brake Shoe Gauge, Special Tool C-3919 (1),

or equivalent, accurately measure the inside diam-
eter of the park brake drum portion of the rotor.

6. Using a ruler (2) that reads in 64th of an inch,

accurately read the measurement of the inside
diameter of the park brake drum from the special
tool.

7. Reduce the inside diameter measurement of the

brake drum that was taken using Special Tool
C-3919 (2) by 1/64 of an inch. Reset Gauge, Brake
Shoe, Special Tool C-3919 (2) or the equivalent
used, so that the outside measurement jaws are
set to the reduced measurement.

8. Place Gauge, Brake Shoe, Special Tool C-3919 (2)

, or equivalent over the park brake shoes. The spe-
cial tool must be located diagonally across at the
top of one shoe and bottom of opposite shoe (wid-
est point) of the park brake shoes.

9. Using the star wheel adjuster, adjust the park brake

shoes until the lining on the park brake shoes just
touches the jaws on the special tool.

10. Repeat step 8 above and measure shoes in both

directions.

11. Install brake rotor on the axleshaft (Refer to 5 - BRAKES/HYDRAULIC/MECHANICAL/ROTORS - INSTALLA-

TION).

12. Rotate rotor to verify that the park brake shoes are not dragging on the brake drum. If park brake shoes are

dragging, remove rotor and back off star wheel adjuster one notch and recheck for brake shoe drag against
drum. Continue with the previous step until brake shoes are not dragging on brake drum.

13. Install disc brake caliper on caliper adapter (Refer to 5 - BRAKES/HYDRAULIC/MECHANICAL/DISC BRAKE

CALIPERS - INSTALLATION).

14. Install wheel and tire.

15. Tighten the wheel mounting nuts in the proper sequence until all nuts are torqued to half the specified torque.

Then repeat the tightening sequence to the full specified torque of 129 N·m (95 ft. lbs.).

16. Lower vehicle.

CAUTION: Before moving vehicle, pump brake pedal several times to ensure the vehicle has a firm enough
pedal to stop the vehicle.

NOTE: After parking brake lining replacement, it is recommended that the parking brake system be condi-
tioned prior to use. This is done by making one stop from 25 mph on dry pavement or concrete using light
to moderate force on the parking brake hand lever.

17. Road test the vehicle to ensure proper function of the vehicle’s brake system.

BRAKES - BASE - SERVICE INFORMATION

5 - 53

BRAKES - ABS ELECTRICAL DIAGNOSTICS

TABLE OF CONTENTS

page

BRAKES - ABS ELECTRICAL DIAGNOSTICS

DIAGNOSIS AND TESTING

C100A–LEFT FRONT WHEEL SPEED

SENSOR CIRCUIT. . . . . . . . . . . . . . . . . . . . . . . . . . 57

C1011–LEFT FRONT WHEEL SPEED

SENSOR SIGNAL ERRATIC
PERFORMANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 62