Jeep Liberty KJ. Manual — part 562
3. Attach one end of bleed hose to bleed screw and
insert opposite end in glass container partially filled
with brake fluid. Be sure end of bleed hose is
immersed in fluid.
4. Open up bleeder, then have a helper press down
the brake pedal. Once the pedal is down close the
bleeder. Repeat bleeding until fluid stream is clear
and free of bubbles. Then move to the next wheel.
SPECIFICATIONS
BASE BRAKES
DESCRIPTION
SPECIFICATION
Disc Brake Rotor
Diameter
Front
288 x 28 mm (11.3 x 1.102 in)
Disc Brake Rotor
Diameter
Rear
285 x 12 mm (11 x 0.472 in)
Disc Brake Rotor
Ventilated
Front
Max. Runout
0.102 mm (0.004 in.)
Disc Brake Rotor
Solid
Rear
Max. Runout
0.102 mm (0.004 in.)
Disc Brake Rotor
Ventilated
Front
Max. Thickness Variation
0.015 mm (0.0006 in.)
Disc Brake Rotor
Solid
Rear
Max. Thickness Variation
0.018 mm (0.0007 in.)
Disc Brake Rotor
Ventilated
Front
Min. Thickness
26.0 mm (1.0236 in.)
Disc Brake Rotor
Solid
Rear
Min. Thickness
11.0 mm (0.4331 in.)
Disc Brake Caliper
Sliding
Brake Booster
Dual Diaphragm
5 - 8
BRAKES - BASE - SERVICE INFORMATION
KJ
TORQUE
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Brake Booster Mounting
Nuts
25
—
220
Brake Pedal Shaft to
Steering Column Support
Bracket Nut & Washer
Assembly
22.6
—
200
Master Cylinder Mounting
Nuts
25
—
220
Master Cylinder Brake
Lines
20
15
180
Junction Block Mounting
Nuts
14.1
—
125
Junction Block Brake
Lines
20
15
180
Caliper Mounting Bolts
Front
15
11
—
Caliper Mounting Bolts
Rear
25
—
220
Caliper Brake Hose Banjo
Bolt
Front
31
23
—
Caliper Brake Hose Banjo
Bolt
Rear
31
23
—
Parking Brake Lever
Screws
10-14
7-10
—
Parking Brake Lever
Bracket Screws
10-14
7-10
—
KJ
BRAKES - BASE - SERVICE INFORMATION
5 - 9
SPECIAL TOOLS
BASE BRAKES
Installer Caliper Dust Boot 8280
Handle C-4171
Adapter Pressure Bleeder 6921
5 - 10
BRAKES - BASE - SERVICE INFORMATION
KJ
BRAKE LINES
DESCRIPTION
Flexible rubber hose is used at both front and rear brakes and at the rear axle junction block. Double walled steel
tubing is used to connect the master cylinder to the major hydraulic braking components and then to the flexible
rubber hoses. Double inverted style and ISO style flares are used on the brake lines.
DIAGNOSIS AND TESTING - BRAKE LINE AND HOSES
Flexible rubber hose is used at both front and rear brakes and at the rear axle junction block. Inspect the hoses
whenever the brake system is serviced, at every engine oil change, or whenever the vehicle is in for service.
Inspect the hoses for surface cracking, scuffing, or worn spots. Replace any brake hose immediately if the fabric
casing of the hose is exposed due to cracks or abrasions.
Also check brake hose installation. Faulty installation can result in kinked, twisted hoses, or contact with the wheels
and tires or other chassis components. All of these conditions can lead to scuffing, cracking and eventual failure.
The steel brake lines should be inspected periodically for evidence of corrosion, twists, kinks, leaks, or other dam-
age. Heavily corroded lines will eventually rust through causing leaks. In any case, corroded or damaged brake lines
should be replaced.
Factory replacement brake lines and hoses are recommended to ensure quality, correct length and superior fatigue
life. Care should be taken to make sure that brake line and hose mating surfaces are clean and free from nicks and
burrs. Also remember that right and left brake hoses are not interchangeable.
Use new copper seal washers at all caliper connections. Be sure brake line connections are properly made (not
cross threaded) and tightened to recommended torque.
STANDARD PROCEDURE
DOUBLE INVERTED FLARING
A pre-formed metal brake tube is recommended and preferred for all repairs. However, double-wall steel tube can
be used for emergency repair when factory replacement parts are not readily available.
Special bending tools are needed to avoid kinking or twisting of metal brake tubes. Special flaring tools are needed
to make a double inverted flare or ISO flare.
1. Cut off damaged tube with Tubing Cutter.
2. Ream cut edges of tubing to ensure proper flare.
3. Install replacement tube nut on the tube.
4. Insert tube in flaring tool.
5. Place gauge form over the end of the tube.
6. Push tubing through flaring tool jaws until tube contacts recessed notch in gauge that matches tube diameter.
7. Tighten the tool bar on the tube
8. Insert plug on gauge in the tube. Then swing compression disc over gauge and center tapered flaring screw in
recess of compression disc.
9. Tighten tool handle until plug gauge is squarely seated on jaws of flaring tool. This will start the inverted flare.
10. Remove the plug gauge and complete the inverted flare.
KJ
BRAKES - BASE - SERVICE INFORMATION
5 - 11
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