brakes INFINITI QX56 2007 Factory User Guide

GENERAL MAINTENANCE
MA-5
< SERVICE INFORMATION >
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UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).
BrakesCheck that the brake does not pull the vehicle to one side when applied. —
Brake pedal and
boosterCheck the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Keep the floor
mats away from the pedal.BR-5, "
Inspection and
Adjustment", BR-15,
"On-Vehicle Service"
Parking brakeCheck that the parking brake control has the proper travel and make sure that
the vehicle is held securely on a fairly steep hill when only the parking brake is
applied.PB-4
Automatic transmis-
sion “Park” mecha-
nismOn a fairly steep hill check that the vehicle is held securely with the selector lever
in the P position without applying the brakes. — ItemReference page
ItemReference page
Windshield washer
fluidCheck that there is adequate fluid in the tank.
—
Engine coolant levelCheck the coolant level when the engine is cold. —
Radiator and hosesCheck the front of the radiator and clean off any dirt, insects, leaves, etc., that
may have accumulated. Make sure the hoses have no cracks, deformation, de-
terioration or loose connections.—
Brake fluid levelMake sure that the brake fluid level is between the “MAX” and “MIN” lines on the
reservoirsMA-27
BatteryCheck the fluid level in each cell. It should be between the “MAX” and “MIN” lines.
Vehicles operated in high temperatures or under severe conditions require fre-
quent checks of the battery fluid level.—
Engine drive beltMake sure that no belt is frayed, worn, cracked or oily.MA-12
Engine oil levelCheck the level on the dipstick after parking the vehicle on a level spot and turn-
ing off the engine.—
Power steering fluid
level and linesCheck the level on the reservoir with the engine off. Check the lines for improper
attachment, leaks, cracks, etc.MA-28
Automatic transmis-
sion fluid levelCheck the level on the dipstick after putting the selector lever in “P” with the en-
gine idling.MA-21
Exhaust systemMake sure there are no loose supports, cracks or holes. If the sound of the ex-
haust seems unusual or there is a smell of exhaust fumes, immediately locate
the trouble and correct it.MA-21
UnderbodyThe underbody is frequently exposed to corrosive substances such as those
used on icy roads or to control dust. It is very important to remove these sub-
stances, otherwise rust will form on the floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the underbody should be thoroughly
flushed with plain water, being careful to clean those areas where mud and dirt
can easily accumulate.—
Fluid leaksCheck under the vehicle for fuel, oil, water or other fluid leaks after the vehicle
has been parked for a while. Water dripping from the air conditioner after use is
normal. If you should notice any leaks or gasoline fumes are evident, check for
the cause and correct it immediately.—

PB-1
BRAKES
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SECTION PB
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PB
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CONTENTS
PARKING BRAKE SYSTEM
SERVICE INFORMATION ............................2
PREPARATION ...................................................2
Commercial Service Tool ..........................................2
PARKING BRAKE SYSTEM ...............................3
On-Vehicle Service ...................................................3
PARKING BRAKE CONTROL ............................4
Component ................................................................4
Removal and Installation ..........................................4
PARKING BRAKE SHOE ..................................6
Removal and Installation ..........................................6
SERVICE DATA AND SPECIFICATIONS
(SDS) ..................................................................
9
Parking Drum Brake .................................................9
Parking Brake Control ..............................................9

PB-6
< SERVICE INFORMATION >
PARKING BRAKE SHOE
PARKING BRAKE SHOE
Removal and InstallationINFOID:0000000003532758
COMPONENTS
REMOVAL
WARNING:
Clean the brakes with a vacuum dust collector to minimize the hazard of airborne particles or other
materials.
NOTE:
Remove the disc rotor only with the parking brake pedal completely disengaged.
1. Remove wheel hub and bearing assembly. Refer to FA X - 5 , "
Removal and Installation" .
• Disconnect the wheel sensor at the harness connector. It is not necessary to remove the wheel sensor
from the wheel hub and bearing assembly.
2. Remove the return springs.
3. Remove the adjuster.
4. Remove the retainers, anti-rattle pins and shoes.
5. Disconnect the rear cable from the toggle lever.
6. Remove the back plate.
INSPECTION AFTER REMOVAL
Lining Thickness Inspection
1. Back plate 2. Shoes 3. Toggle lever
4. Return springs 5. Retainers 6. Adjuster
7. Anti-rattle pins
WFIA0164E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPR-3
< SERVICE INFORMATION >
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NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532575
Use the chart below to help you find t he cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PR-4
(front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
FFD-6, "
NVH Troubleshooting Chart
"
RFD-7, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
RAX-4, "
NVH Troubleshooting Chart
"
FSU-4, "
NVH Troubleshooting Chart
"
RSU-4, "
NVH Troubleshooting Chart
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WT-4, "
NVH Troubleshooting Chart
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WT-4, "
NVH Troubleshooting Chart
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FAX-4, "
NVH Troubleshooting Chart
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BR-4, "
NVH Troubleshooting Chart
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PS-5, "
NVH Troubleshooting Chart
"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tires
Road wheel
Drive shaft
Brakes
Ste eri ng
Symptom Noise
×××××××××××
Shake ×××××××
Vibration ××××××××

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PS-5
< SERVICE INFORMATION >
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532820
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PS-6PS-6PS-17PS-17PS-17PS-6PS-7PS-7
EM-13, "
Checking Drive Belts
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PS-7PS-10PS-15PS-13PS-10PS-15
PR-3, "
NVH Troubleshooting Chart
"
FFD-6, "
NVH Troubleshooting Chart
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FAX-4, "
NVH Troubleshooting Chart
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FSU-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
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FAX-4, "
NVH Troubleshooting Chart
"
BR-4, "
NVH Troubleshooting Chart
"
Possible cause and suspect-
ed parts
Fluid level
Air in hydraulic system
Outer socket ball joint swinging force
Outer socket ball joint rotating torque
Outer socket ball joint end play
Steering fluid leakage
Steering wheel play
Steering gear rack sliding force
Drive belt looseness
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting rubber deterioration
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
PROPELLER SHAFT
FRONT FINAL DRIVE
WHEEL HUB
SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
SymptomNoise× × ××××× × × ××××××× ×
Shake××× × ××××× ×
Vibration××××× × ××× ×
Shimmy×××××××××
Shudder×××××××

RAX-4
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532623
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
—
RAX-7RAX-7—
RAX-5—
RFD-7, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
FSU-4, "
NVH Troubleshooting Chart
"
RSU-4, "
NVH Troubleshooting Chart
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WT-4, "
NVH Troubleshooting Chart
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WT-4, "
NVH Troubleshooting Chart
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PR-3, "
NVH Troubleshooting Chart
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BR-4, "
NVH Troubleshooting Chart
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PS-5, "
NVH Troubleshooting Chart
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Possible cause and SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
DIFFERENTIAL
FRONT AXLE
FRONT SUSPENSION
REAR SUSPENSION
TIRES
ROAD WHEEL
PROPELLER SHAFT
BRAKES
STEERING
SymptomNoise×× ×× ××× ×××××
Shake× × ×× ×× ×××××
Vibration×× ××× ××× ×
Shimmy×× ×× ×× ××
Shudder×××××××
Poor quality ride or handling×× ××× ×× ×

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
RFD-7
< SERVICE INFORMATION >
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532600
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
RFD-15RFD-15RFD-15RFD-15RFD-15RFD-8
PR-3, "
NVH Troubleshooting Chart
"
RAX-4, "
NVH Troubleshooting Chart
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RSU-4, "
NVH Troubleshooting Chart
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WT-4, "
NVH Troubleshooting Chart
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WT-4, "
NVH Troubleshooting Chart
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RAX-4, "
NVH Troubleshooting Chart
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BR-4, "
NVH Troubleshooting Chart
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PS-5, "
NVH Troubleshooting Chart
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Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
REAR AXLE
REAR SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom FINAL DRIVE Noise××××××××××××××

RSU-4
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532655
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
RSU-21RSU-30
—
—
—
RSU-21
RSU-23RSU-37
PR-3, "
NVH Troubleshooting Chart
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RFD-7, "
NVH Troubleshooting Chart
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FAX-4, "
NVH Troubleshooting Chart
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FSU-4, "
NVH Troubleshooting Chart
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WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
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FAX-4, "
NVH Troubleshooting Chart
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BR-4, "
NVH Troubleshooting Chart
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PS-5, "
NVH Troubleshooting Chart
"
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
FRONT AXLE
FRONT SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
SymptomNoise×××××× ××× ××××××
Shake×××× × × × ××××××
Vibration××××× × × ×× × ×
Shimmy×××× × × ××× ××
Shudder ××× × ××× ××
Poor quality ride or handling××××× ×× × ×××

SB-12
< SERVICE INFORMATION >
SEAT BELTS
2. Proceed to the designated safe area.
3. Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of a pending sudden stop.
The driver and passenger must be prepared to brace themselves in the event the retractor does not lock.
Apply brakes firmly and make a very hard stop.
During stop, seat belts should lock and not be extended. If the seat belt retractor and belt assembly does not
lock, perform the retractor off-vehicle check.
SEAT BELT RETRACTOR OFF-VEHICLE CHECK
1. Remove the seat belt retractor and belt assembly.
2. Slowly pull out belt while tilting the retractor assembly forward from the mounted position without twisting
the retractor assembly as shown in the illustration.
If retractor does not operate within specifications, replace the retractor assembly. 15 degrees or less tilt : Belt can be pulled out.
35 degrees or more tilt : Belt locks and cannot be pulled out.
PHIA0257E