Infiniti QX56 (JA60). Manual — part 115
BR-20
< ON-VEHICLE REPAIR >
BRAKE PEDAL
3. Disconnect the adjustable brake pedal cable from the adjustable
pedal electric motor.
• Unlock (1) then pull (2) the adjustable brake pedal cable to dis-
connect it from the adjustable pedal electric motor as shown.
4. Remove snap pin and clevis pin from the clevis of brake booster.
5. Remove brake pedal assembly nuts and remove the brake pedal assembly.
• Temporarily install the brake pedal assembly nuts by hand to support the brake booster.
WARNING:
Do not bend the brake tubing.
CAUTION:
• Before removal and installation, the accelerator and brake pedals must be in the forward most
position (closest to the floor). This is to align the base position of the accelerator and brake ped-
als.
• Do not disassemble the brake pedal adjusting mechanism.
• Avoid damage from dropping the brake pedal assembly during handling.
• Keep the brake pedal assembly away from water.
INSPECTION AFTER REMOVAL
Check the brake pedal assembly for the following items:
• Crack or deformation of clevis pin stopper
• Clevis pin deformation
• Crack of any welded portion of the brake pedal assembly
• Brake pedal bend or deformation
INSTALLATION
Installation is in the reverse order of removal.
• Check the brake pedal for smooth operation. There should be no binding or sticking when applying or
releasing the brake pedal.
• Check the brake pedal adjustable feature for smooth operation. There should be no binding or sticking when
adjusting the brake pedal forward or backward.
• After installing the brake pedal assembly, be sure to adjust it. Refer to
BR-15, "Inspection and Adjustment"
LBIA0374E
SBR997
BRAKE TUBE AND HOSE
BR-21
< ON-VEHICLE REPAIR >
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BRAKE TUBE AND HOSE
Hydraulic Circuit
INFOID:0000000005147905
CAUTION:
• All hoses and piping (tubes) must be free from excessive bending, twisting and pulling.
• Make sure there is no interference with other parts when turning the steering wheel both clockwise
and counterclockwise.
• The brake piping is an important safety part. If a brake fluid leak is detected, always disassemble the
parts. Replace applicable part with a new one, if necessary.
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• Do not bend or twist brake hose sharply, or strongly pull it.
• When removing components, cover connections so that no dirt, dust, or other foreign matter gets in.
• Refill with new specified brake fluid. Refer to
MA-13, "Fluids and Lubricants"
.
• Do not reuse drained brake fluid.
Removal and Installation of Front Brake Piping and Brake Hose
INFOID:0000000005147906
REMOVAL
1. Remove front wheel and tire using power tool.
2. Remove brake reservoir cap.
1.
Actuator
2.
Master cylinder
3.
Brake booster
4.
Connector
A.
Union bolt
18.2 N·m (1.9 kg-m, 13 ft-lb)
B.
Flare nut M12
18.2 N·m (1.9 kg-m, 13 ft-lb)
C.
Flare nut M10
16.2 N·m (1.7 kg-m, 12 ft-lb)
AWFIA0411ZZ
BR-22
< ON-VEHICLE REPAIR >
BRAKE TUBE AND HOSE
3. Remove brake tube from brake hose, using a suitable tool.
4. Remove lock plate and brake hose from bracket.
5. Remove union bolt and then remove brake hose from cylinder
body.
INSTALLATION
1. Install brake hose by aligning with the protrusion on cylinder
body, then install the union bolt and new copper washers and
tighten to specification. Refer to
CAUTION:
Do not reuse copper washer.
2. Insert brake hose end through bracket, then secure it to bracket
with lock plate.
3. Install brake tube to brake hose, then tighten the flare nut using
a suitable tool. Refer to
.
4. Refill brake fluid and bleed air. Refer to
5. Install front wheel and tire using power tool. Refer to
Removal and Installation of Rear Brake Piping and Brake Hose
INFOID:0000000005147907
REMOVAL
1. Remove rear wheel and tire using power tool.
2. Remove brake reservoir cap.
LFIA0213E
LFIA0214E
SFIA1137E
LFIA0213E
BRAKE TUBE AND HOSE
BR-23
< ON-VEHICLE REPAIR >
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3. Remove brake tube from brake hose, using a suitable tool.
4. Remove lock plate and brake hose from bracket.
5. Remove union bolt and then remove brake hose from cylinder
body.
INSTALLATION
1. Install brake hose by aligning with the protrusion on cylinder
body, then install the union bolt and new copper washers and
tighten to specification. Refer to
CAUTION:
Do not reuse copper washer.
2. Insert brake hose end through bracket, then secure it to bracket
with lock plate.
3. Install brake tube to brake hose, then tighten the flare nut using
a suitable tool. Refer to
.
4. Refill brake fluid and bleed air. Refer to
BR-17, "Bleeding Brake System"
.
5. Install rear wheel and tire using power tool. Refer to
.
Inspection After Installation
INFOID:0000000005147908
CAUTION:
Brake tubes and hoses are important safety parts. Always disassemble the parts and retighten their fit-
tings, if a brake fluid leak is detected. Replace applicable part with a new one, if a damaged part is
detected.
LFIA0213E
LFIA0212E
SFIA1137E
LFIA0213E
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