Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti Q45 FY33 F50 2001-2006 Approved 2003_Q45 pb
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PARKING BRAKE SYSTEM
F BRAKES
A
B
SECTION
PARKING BRAKE SYSTEM C
D
E
CONTENTS
PRECAUTIONS ......................................................... 2
. INSTALLATION .................................................... 5 . PB
Precautions for Supplemental Restraint System Inspection ................................................................ 5
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- PARKING BRAKE SHOE .......................................... 6 .
SIONER" ................................................................. 2
. Components ............................................................ 6
. G
PARKING BRAKE SYSTEM ..................................... 3 . Removal and Installation ......................................... 6 .
On-Vehicle Service .................................................. 3
. REMOVAL ............................................................ 6
.
INSPECTION ....................................................... 3
. INSTALLATION .................................................... 7 .
H
ADJUSTMENT ..................................................... 3. BREAKING IN DRUM AND LINING ..................... 8 .
PARKING BRAKE CONTROL .................................. 4 . Inspection ................................................................ 8
.
Components ............................................................ 4
. SERVICE DATA AND SPECIFICATIONS (SDS) ....... 9 .
Removal and Installation ......................................... 4. Parking Drum Brake ................................................ 9 . I
REMOVAL ............................................................ 4
. Parking Brake Control ............................................. 9 .
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Revision; 2004 April PB-1 2003 Q45
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EFS00282
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Revision; 2004 April PB-2 2003 Q45
PARKING BRAKE SYSTEM
PARKING BRAKE SYSTEM PFP:36010
A
On-Vehicle Service EFS000GP
INSPECTION
q While depressing parking brake pedal to specified amount of B
force, check that pedal stroke is within the range of specified
stroke amount.
Number of notches : 4-5 C
q Check that warning lamp comes on when parking brake pedal is
depressed with in one notch.
D
SBR695A
E
ADJUSTMENT
1. Insert a deep-well socket wrench to rotate self-locking nut to
loosen cable sufficiently. Then, after returning pedal completely, PB
adjust the clearance of rear shoes.
2. Remove road wheels.
3. Using a wheel nut, fix the disc to hub preventing it from tilting. G
H
SBR051C
I
4. Remove adjuster hole plug installed on disc. Using a screw-
driver, turn disc to clock wise as shown in figure until disc is
locked. After locking, turn adjuster to opposite direction by 5 or 6 J
notches.
5. Rotate disc to make sure that there is no drag. Then install
adjuster hole plug.
K
6. After adjusting the clearance of rear shoes, with no drag on rear
brake, adjust cable as follows:
a. Operate pedal 10 or more times with the force of 294 N (30 kg,
L
66 lb).
SBR046C
b. Depress pedal until a deep-well socket can be inserted. Insert
deep-well socket, and rotate self-locking nut to adjust pedal stroke.
M
CAUTION:
Do not reuse self-locking nut after removing it.
c. After operating pedal 3 to 4 times with the force of 196 N (20 kg, 44 lb), make sure that pedal stroke is
within specified value.
d. With pedal completely returned, make sure that there is no drag on rear brake.
Revision; 2004 April PB-3 2003 Q45
PARKING BRAKE CONTROL
PARKING BRAKE CONTROL PFP:36010
Components EFS000O2
SFIA0137E
1. Parking brake pedal Assembly 2. Return spring 3. Warning lamp switch
4. Front cable 5. Lock plate 6. Clamp
7. Return spring 8. RH rear cable 9. LH rear cable
10. Stopper pin
Removal and Installation EFS000O3
REMOVAL
1. Remove console.Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove self-locking nut from device assembly.
3. Remove exhaust center tube.Refer to EX-3, "Removal and Installation" .
4. Remove propeller shaft.Refer to PR-3, "Removal and Installation" .
5. Remove rear disc caliper and disc rotor.
6. Remove parking brake shoe, and remove rear cable from toggle lever.
7. Remove cable mounting nuts.
8. Remove right and left rear cable from vehicle.
9. Remove air bag sensor unit with sensor mount bracket. Refer to SRS-51, "Removal and Installation" .
10. Remove front cable mounting nuts and bolts, and remove front cable from vehicle.
11. Remove mounting bolts of release cable and device assembly, and remove device assembly from vehicle.
Revision; 2004 April PB-4 2003 Q45
PARKING BRAKE CONTROL
INSTALLATION
1. Install in the reverse order of removal. Tighten mounting bolts and nuts to the specified torque. A
CAUTION:
Do not reuse self-locking nut of parking cable.
2. Adjust clearance of parking brake shoes. B
Inspection EFS000O4
q Check device assembly for bend, damage, and cracks. Replace if necessary. C
q Check cable and equalizer for wear and damage.
q Check warning lamp switch. Replace if necessary.
q Check each part for deformation, or damage by contact with other parts. Replace if necessary. D
E
PB
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Revision; 2004 April PB-5 2003 Q45
PARKING BRAKE SHOE
PARKING BRAKE SHOE PFP:44060
Components EFS000O5
SFIA0152E
1. Toggle lever 2. Stopper pin 3. Return spring
4. Shoe 5. Adjuster spring 6. Anti-rattle spring
7. Retainer 8. Anti-rattle pin 9. Adjuster assembly
Removal and Installation EFS000O6
REMOVAL
WARNING:
Clean brakes with a vacuum dust collector to minimize the hazard of airborne particles or other mate-
rials.
CAUTION:
q Remove wheel, and remove disc rotor with parking pedal completely returned.
q If disc rotor cannot be removed, remove as follows:
1. Fix the disc rotor with wheel nut, and remove adjuster hole plug.
Using a screwdriver, rotate star wheel on the adjuster assembly
in the direction B to loosen, and retract brake shoes.
2. Remove plug.
3. Insert flat-tip screwdriver through plug. Turn adjuster to make
clearance between brake shoe and drum.
SFIA1000E
Revision; 2004 April PB-6 2003 Q45
PARKING BRAKE SHOE
INSTALLATION
Install all parts in the reverse order of while taking care of the following. A
q Apply brake grease to contact areas shown in figure.
B
C
D
SBR047C
q Assemble return spring A under return spring B as shown at C in E
figure.
PB
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SFIA0134E
q The orientation of adjuster is different from left to right. Assem- L
ble the adjuster so that threaded part is expanded when rotating
it to direction shown by arrow. Contract adjuster to assemble.
When disassembling adjuster, apply brake grease to thread. M
q Adjust parking brake pedal stroke to the specified amount.
q After replacing shoe or disc rotor, or if brake does not function
well, carry out break-in operation as follows.
SFIA0153E
Revision; 2004 April PB-7 2003 Q45
PARKING BRAKE SHOE
BREAKING IN DRUM AND LINING
CAUTION:
Do not carry out break-in procedure excessively, because it may cause the uneven wear or pre-mature
wear of lining.
When a new rotor/parking brake shoe is installed, or when braking performance is poor, perform the following
break-in procedure.
1. Drive the unloaded vehicle on a safe, level and dry road.
2. Depress parking brake pedal with a force of 147 N (15 kg, 33 lb).
3. While depressing pedal, continue to drive vehicle for-ward100 m (328 ft) at approximately 35 km/h (22
MPH).
4. Cool down parking brake for approx. Five minutes.
5. After releasing pedal, drive vehicle under the normal conditions for two minutes to cool down parking
drum brake.
6. Repeat steps 1 through 5 three times and then repeat only step 5 one more time.
7. After the break-in procedure, check pedal stroke of parking brake. If it is out of the specification, adjust
again.
Inspection EFS000O7
q Visually check lining for malfunction wear, damage, and peeling.
q Using a scale, check thickness of lining.
Standard lining thickness : 3.2 mm (0.126 in)
Lining wear limit (A) : 1.5 mm (0.059 in)
CAUTION:
If necessary, remove brake shoe, and check as follows.
q Check shoe sliding surface for malfunction wear and damage.
q Check anchor pin for malfunction wear and corrosion.
q Check return spring for sagging. SBR021A
q Check adjuster for rough operation.
q Visually check the inside of drum for malfunction wear, damage,
and cracks. Using a pair of vernier calipers, check the inside of
drum.
Standard inner diameter : 172.0 mm (6.77 in)
Maximum inner diameter : 173.0 mm (6.81 in)
SBR768A
Revision; 2004 April PB-8 2003 Q45
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS) PFP:00030
A
Parking Drum Brake EFS000GU
Type DS17HF
Standard thickness (new) 3.2 mm (0.126 in) B
Brake lining
Wear limit thickness 1.5 mm (0.059 in)
Standard inner diameter (new) 172 mm (6.77 in)
Drum (disc) C
Wear limit of inner diameter 173 mm (6.81 in)
Parking Brake Control EFS000NJ
D
Control type Foot lever
Number of notches [under force of 196 N (20 kg, 44lb)] 4 - 5
Number of notches E
1
when warning lamp switch comes on
PB
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Revision; 2004 April PB-9 2003 Q45
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision; 2004 April PB-10 2003 Q45
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