Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti M45 Y34 2003-2004 Approved M45-Y34-2003 pb
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PARKING BRAKE SYSTEM
F BRAKES
A
SECTION
PARKING BRAKE SYSTEM
PB B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 2
. INSTALLATION .................................................... 4 . PB
Precautions for Supplemental Restraint System Inspection ................................................................ 4
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- PARKING BRAKE SHOE .......................................... 5 .
SIONER" ................................................................. 2
. Components ............................................................ 5
. G
PARKING BRAKE SYSTEM ..................................... 3 . Removal and Installation ......................................... 5 .
On-Vehicle Service .................................................. 3
. REMOVAL ............................................................ 5
.
INSPECTION ....................................................... 3
. INSPECTION ....................................................... 6.
H
ADJUSTMENT ..................................................... 3. INSTALLATION .................................................... 6 .
PARKING BRAKE CONTROL .................................. 4 . BREAKING IN DRUM AND LINING ..................... 8 .
Components ............................................................ 4
. SERVICE DATA AND SPECIFICATIONS (SDS) ....... 9 .
Removal and Installation ......................................... 4. Parking Drum Brake ................................................ 9 . I
REMOVAL ............................................................ 4
. Parking Brake Control ............................................. 9 .
J
K
L
M
Revision; 2004 April PB-1 2003 M45
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AFS000JI
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 M45
PARKING BRAKE SYSTEM
PARKING BRAKE SYSTEM PFP:36010
A
On-Vehicle Service AFS000JK
INSPECTION
q While depressing the parking brake pedal to specified amount of B
force. Check that the pedal stroke is within the range of the
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
To perform adjustment operations, remove tire from vehicle.
1. Insert a deep-well socket wrench to rotate the self-locking nut to PB
loosen the cable sufficiently. Then, after returning the pedal
completely, adjust the clearance of the rear shoes.
2. Using a wheel nut, fix the disc to the hub preventing it from tilt- G
ing.
H
SBR051C
I
3. Remove the adjuster hole plug installed on the disc. Using a
screwdriver, turn the disc to clockwise as shown in the figure J
until the disc is locked. After locking, turn the adjuster to the
opposite direction by 5 or 6 notches.
4. Rotate the disc to make sure that there is no drag. Then install K
the adjuster hole plug.
5. After adjusting the clearance of the rear shoes, with no drag on
the rear brake, adjust the cable as follows: L
a. Operate the pedal 10 or more times with the force of 294 N (30
kg, 66 lb).
SBR046C
b. Depress the pedal until a deep-well socket can be inserted. M
Insert the deep-well socket, and rotate the self-locking nut to adjust the pedal stroke.
CAUTION:
Do not reuse the self-locking nut after removing it.
c. After operating the pedal 3 to 4 times with the force of 196 N (20 kg, 44 lb), make sure that the pedal
stroke is within the specified value.
d. With the pedal completely returned, make sure that there is no drag on the rear brake.
Revision; 2004 April PB-3 2003 M45
PARKING BRAKE CONTROL
PARKING BRAKE CONTROL PFP:36010
Components AFS000JL
SFIA0786E
1. Pedal assembly 2. Lock plate 3. Front cable
4. Return spring 5. RH rear cable 6. LH rear cable
7. Self-locking nut
Removal and Installation AFS000JM
REMOVAL
1. Remove console box assembly. Refer to IP-15, "(T) Console Box Assembly" .
2. Remove self-locking nut from pedal assembly.
3. Remove exhaust center tube. Refer to EX-3, "Removal and Installation" .
4. Remove propeller shaft. Refer to PR-5, "Removal and Installation" .
5. Remove tire from the vehicle.
6. Remove rear disc caliper and disc rotor. Refer to BR-27, "Removal and Installation of Caliper Assembly" .
7. Remove parking brake shoe, and remove rear cable from toggle lever.
8. Remove rear cable mounting nuts and bolts, and remove right and left rear cable from the vehicle.
9. Remove air bag sensor unit with the sensor mount bracket. Refer to SRS-50, "DIAGNOSIS SENSOR
UNIT" .
10. Remove front cable mounting nuts and bolts, and remove front cable from the vehicle.
11. Remove mounting bolts and nuts of pedal assembly, and remove pedal assembly from the vehicle.
INSTALLATION
1. Install in the reverse order of removal. Tighten the mounting bolts and nuts to the specified torque.
CAUTION:
Do not reuse the self-locking nut of the parking cable.
2. Adjust clearance of parking brake shoes.
Inspection AFS000JN
q Check the pedal assembly for bend, damage, and cracks. Replace if necessary.
q Check the cable for wear and damage.
q Check the warning lamp switch. Replace if necessary.
q Check each part for deformation, or damage by contact with other parts. Replace if necessary.
Revision; 2004 April PB-4 2003 M45
PARKING BRAKE SHOE
PARKING BRAKE SHOE PFP:44060
A
Components AFS000JO
B
C
D
E
PB
G
H
I
J
SFIA0568E
K
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 L
Removal and Installation AFS000JP
REMOVAL
WARNING: M
Clean brakes with a vacuum dust collector to minimize the hazard of airborne particles or other mate-
rials.
CAUTION:
q Remove the wheel, and remove the disc rotor with the parking pedal completely returned.
q If the disc rotor cannot be removed, remove as follows.
1. Fix the disc rotor with the wheel nut.
2. Remove plug.
3. Insert flat-bladed screwdriver through plug. Turn adjuster to
make clearance between brake shoe and drum.
SBR046CA
Revision; 2004 April PB-5 2003 M45
PARKING BRAKE SHOE
INSPECTION
q Visually check the lining for malfunction wear, damage, and
peeling.
q Using a scale, check the thickness of the lining.
Standard
Standard lining thickness "A" : 3.2 mm (0.126 in)
lining wear limit "A" : 1.5 mm (0.059 in)
CAUTION:
If necessary, remove the brake shoe, and check as follows.
q Check the shoe sliding surface for malfunction wear and dam- SBR021A
age.
q Check the anchor pin for malfunction wear and corrosion.
q Check the return spring for sagging.
q Check the adjuster for rough operation.
q Visually check the inside of the drum for malfunction wear, dam-
age, and cracks. Using a pair of vernier calipers, check the
inside of the drum.
Standard
Standard inner diameter : 172.0 mm (6.77 in)
Maximum inner diameter : 173.0 mm (6.81 in)
SBR768A
INSTALLATION
Install all parts in the reverse order of removal while taking care of the following.
q Apply brake grease to the contact areas shown in the figure.
SBR047C
q Assemble the parking brake shoe springs as shown.
SFIA0841E
Revision; 2004 April PB-6 2003 M45
PARKING BRAKE SHOE
q The orientation of the adjuster is different from left to right.
Assemble the adjuster so that the threaded part is expanded A
when rotating it to the direction shown by the arrow. Contract the
adjuster to assemble. When disassembling the adjuster, apply
brake grease to the thread.
B
q Adjust the parking brake pedal stroke to the specified amount.
q After replacing the shoe or disc rotor, or if the brake does not
function well, carry out the break-in operation as follows.
C
SFIA0153E
D
E
PB
G
H
I
J
K
L
M
Revision; 2004 April PB-7 2003 M45
PARKING BRAKE SHOE
BREAKING IN DRUM AND LINING
CAUTION:
Do not carry out the break-in procedure excessively, because it may cause the uneven wear or prema-
ture wear of the 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 the pedal, continue to drive the vehicle forward 100 m (328 ft) at approximately 35 km/
h (22 MPH).
4. Cool down parking brake for approx. five minutes.
5. After releasing the pedal, drive the vehicle under the normal conditions for two minutes to cool down the
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 the pedal stroke of the parking brake. If it is out of the specification,
adjust again.
Revision; 2004 April PB-8 2003 M45
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS) PFP:00030
A
Parking Drum Brake AFS000JR
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 AFS000JS
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
G
H
I
J
K
L
M
Revision; 2004 April PB-9 2003 M45
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision; 2004 April PB-10 2003 M45
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