Infiniti QX56 (Z62). Manual - part 959

PB-2

< PREPARATION >

PREPARATION

PREPARATION

PREPARATION

Commercial Service Tools

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Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0190E

PARKING BRAKE SYSTEM

PB-3

< PERIODIC MAINTENANCE >

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PERIODIC MAINTENANCE

PARKING BRAKE SYSTEM

Inspection and Adjustment

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INSPECTION

1.

Operate the parking brake pedal with a force of 196 N (20 kg, 44 lb). Check that the pedal stroke is within
the specified number of notches. (Check it by listening to clicks of ratchet.)

2.

When brake warning lamp turns ON, check that the pedal stroke is within the specified number of
notches. (Check it by listening to clicks of ratchet.)

Inspect Components

Check the following items and replace if necessary.
• Check each component for installation condition such as looseness.
• Check the parking brake pedal assembly for bend, damage and cracks.
• Check the cables and equalizer for wear, damage and cracks.
• Check the parking brake switch. Refer to 

BRC-118, "Component Inspection"

.

ADJUSTMENT

1.

Remove the rear tires with power tool.

2.

Fix the disc rotor using wheel nuts (2 points at least).

3.

Release the parking brake pedal by turning the adjusting nut and loosening the cable.

4.

Remove the plug from the disc rotor. Turn the adjuster (1) in the
direction (A) as shown in the figure using a suitable tool until the
disc rotor is locked.

5.

Turn back the adjuster 5 or 6 notches from the locked position.

6.

Rotate the disc rotor to check that there is no drag. Install the
plug. If any drag is found, follow the procedure described below.

a.

Adjust parking brake pedal stroke again.

b.

Check rear disc brake. Refer to 

BR-45, "BRAKE CALIPER

ASSEMBLY : Inspection"

.

7.

Adjust the cable with the following procedure.

a.

Temporarily adjust the cable so that the parking brake pedal
operating force immediately before the full stroke reaches 490 N (50kg, 110 lb) or more.

b.

Maintain the parking brake pedal at 490 N (50kg, 110 lb) for 30 minutes or more.

c.

Adjust the parking brake pedal stroke by turning the adjusting nut.

CAUTION:

Never reuse the adjusting nut if the nut is removed.

d.

Operate the parking brake pedal with a force of 196 N (20 kg, 44 lb). Check that the pedal stroke is within
the specified number of notches. (Check it by listening to clicks of ratchet.)

e.

Rotate the disc rotor to check that there is no drag. Install the plug. If any drag is found, follow the proce-
dure described below.

i.

Adjust parking brake pedal stroke again.

ii.

Check rear disc brake. Refer to 

BR-45, "BRAKE CALIPER ASSEMBLY : Inspection"

.

Number of notches

: Refer to 

PB-10, "Parking Brake Control"

.

Number of notches

: Refer to 

PB-10, "Parking Brake Control"

.

Number of notches

: Refer to 

PB-10, "Parking Brake Control"

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PB-4

< PERIODIC MAINTENANCE >

PARKING BRAKE SHOE

PARKING BRAKE SHOE

Adjustment

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1.

Adjust parking brake pedal stroke. Refer to 

PB-3, "Inspection and Adjustment"

.

2.

Perform parking brake break-in (drag on) operation by driving vehicle under the following conditions:
• Drive  forward
• Vehicle speed: Approx. 83 km/h (51.6 MPH) set (constant and forward)
• Parking brake pedal operating force: 255 N (26.0 kg, 57.3 lb) (9 notches) set contact
• Time: Approx. 33 sec.

CAUTION:

• To prevent lining from getting too hot, allow a cool off period of approx. 5 minutes after every

break-in operation.

• Never perform excessive break-in operations, because doing so may cause uneven or early wear

of the lining.

3.

After the break-in procedure, check parking brake pedal stroke of parking brake.

CAUTION:

If it is out of the specification, adjust again. Refer to Refer to 

PB-3, "Inspection and Adjustment"

.

PARKING BRAKE CONTROL

PB-5

< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

PARKING BRAKE CONTROL

Exploded View

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Removal and Installation

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REMOVAL

1.

Remove rear tires with power tool.

2.

Remove instrument lower panel LH. Refer to 

IP-14, "Removal and Installation"

.

3.

Hang fuse block (J/B) not to interfere with work.

4.

Disconnect parking brake switch harness connector.

5.

Remove adjusting nut and loosen front cable.

6.

Remove parking brake pedal assembly.

7.

Remove center console assembly. Refer to 

IP-25, "Removal and Installation"

.

8.

Separate front cable from rear cable, and remove front cable.

9.

Remove pin and remove rear cable from toggle lever. Refer to 

PB-7, "Removal and Installation"

.

10. Remove rear cable.

INSTALLATION

Rote the following, Install the reverse order of the removal.
• Never reuse the adjusting nut.
• Perform adjustment after installation. Refer to 

PB-6, "Adjustment"

.

1.

Front cable

2.

Parking brake pedal assembly

3.

Pedal pad

4.

Adjusting nut

5.

Parking brake switch

6.

Spring

7.

Rear cable (left side)

8.

Rear cable (right side)

9.

Pin

: Apply multi-purpose grease.

Refer to 

GI-4, "Components"

 for symbols not described on the above.

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