Infiniti Q45. Manual - part 724

PARKING BRAKE CONTROL

PB-5

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13. Remove front cable mounting bolts and nuts, and remove front cable from vehicle.

14. Remove mounting nuts of device assembly, and remove device assembly from vehicle.

INSTALLATION

1.

Install in the reverse order of the removal. Tighten the mounting bolts and nuts to the specified torque.
Refer to 

PB-4, "Components"

 .

CAUTION:

Do not reuse adjusting nut of front cable.

2.

Adjust parking brake pedal stroke. Refer to 

PB-3, "ADJUSTMENT"

 .

PB-6

PARKING BRAKE SHOE

PARKING BRAKE SHOE

PFP:44060

Components

NFS000CA

Removal and Installation

NFS000CB

REMOVAL

WARNING:

Clean brakes with a vacuum dust collector to minimize the hazard of air borne particles or other mate-
rials.

CAUTION:

●

Remove wheel, and remove disc rotor with parking brake pedal completely released. Refer to 

BR-

31, "Disassembly and Assembly of Brake Caliper Assembly"

 .

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When removing disc rotor, mark both disc rotor and wheel hub for alignment.

1.

Remove rear tires from vehicle with a power tool.

2.

Remove disc rotor with the parking brake pedal in the completely released position.

3.

Remove disc rotor. If disc rotor cannot be removed, remove as follows:

a.

Secure the disc rotor in place with wheel nuts and remove adjuster hole plug.

1.

Toggle lever

2.

Anti-rattle pin

3.

Retainer

4.

Anti-rattle spring

5.

Return spring

6.

Adjuster spring

7.

Adjuster assembly

8.

Shoe

SFIA2282E

PARKING BRAKE SHOE

PB-7

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b.

Using flat-bladed screwdriver, rotate adjuster in direction “B” to
retract and loosen brake shoe.

4.

Remove anti-rattle pins, retainers, anti-rattle springs, then return
springs. 

5.

Remove parking brake shoes, adjuster assembly, adjuster
spring and toggle lever.

INSPECTION AFTER REMOVAL

Shoe Thickness Inspection

●

Check thickness of lining. 

Drum Inner Diameter Inspection

●

Check drum inner diameter.

Other Inspections

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Check the following:

–

Shoe for excessive wear, damage, and peeling.

–

Shoe sliding surface for excessive wear and damage.

–

Anti-rattle pin for excessive wear and corrosion.

–

Return spring for sagging.

●

Make sure that adjuster moves smoothly.

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Visually check the inside of drum for excessive wear, cracks, and damage. Check the inside of drum using
a pair of vernier calipers.

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Replace with new part if malfunction is detected on the above part.

●

When disassembling adjuster, apply PBC (Poly Butyl Cuprysil) grease or equivalent to the threads. Refer
to

MA-10, "Fluids and Lubricants"

 .

INSTALLATION

Be careful of the following:

●

Refer to 

PB-6, "Components"

  and apply PBC (Poly Butyl Cuprysil) grease or equivalent to the specified

points during assembly.

PFIA0309E

Standard thickness (A)

: 3.2 mm (0.126 in)

Repair limit thickness (A)

: 1.5 mm (0.059 in)

SBR021A

Standard inner diameter

: 172.0 mm (6.77 in) dia. 

Maximum inner diameter

: 173.0 mm (6.81 in) dia. 

SBR768A

PB-8

PARKING BRAKE SHOE

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Assemble return spring A under return spring B as shown at C in
figure.

●

Assemble adjuster so that threaded part expands when rotating
it in the direction shown by the arrow.

●

Shorten adjuster by rotating it.

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After replacing brake shoes or disc rotors, or if brakes do not
function well, perform break-in operation as follows.

1.

Install in the reverse order of the removal.

2.

Adjust parking brake pedal stroke to the specified stroke. Refer
to 

PB-3, "ADJUSTMENT"

 .

3.

Perform parking brake break-in (drag run) operation by driving the vehicle under the following conditions:

4.

After break-in operation, check pedal stroke of parking brake. Readjust if it is no longer at the specified
stroke. Refer to 

PB-3, "ADJUSTMENT"

 .

●

To prevent lining from getting too hot, allow a cool off period of approximately 5 minutes after every
break-in operation.

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Do not perform excessive break-in operations, because it may cause uneven or early wear of lining.

SFIA0134E

SFIA0153E

Drive forward

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Vehicle speed approx. 35 km/h (22 MPH) set (forward)

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Parking brake operating force approx. 148 N (15 kg, 68 lb) set

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Distance  approx. 100 m (328 ft) 

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Repeat steps three times.