2011 INFINITI QX56 Factory Service Manual

auxiliary battery run flat height adjustment transmission fluid infotainment headlight bulb

Page 2953 of 5598

INFINITI QX56 2011 Factory Service Manual
FRONT COIL SPRING AND SHOCK ABSORBERFSU-11
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
FSU
N
O P
12. Separate drive shaft from steering knuckle. (4WD) Refer to FAX-22, "Removal and Installat

FRONT COIL SPRING AND SHOCK ABSORBERFSU-11
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
FSU
N
O P
12. Separate drive shaft from steering knuckle. (4WD) Refer to FAX-22, "Removal and Installation".
13. Remove front tube assembly A and front tube asse mbly B from shock absorber. (With HBMC) Refer to
SCS-32, "
FRONT TUBE ASSEMBLY : Removal and Installation".
14. Remove shock absorber.
15. Perform inspection after removal. (With HBMC) Refer to FSU-12, "
Inspection and Adjustment".
INSTALLATION
Note the following, and install in the reverse order of removal.
Never tap on the ball joint cap of the stabilizer connecting rod with a hammer or a similar item when inserting
the stabilizer connecting rod into the lower link. (Without HBMC)
Perform final tightening of bolts and nuts at the shock absorber lower side (rubber bushing), under unladen
conditions with tires on level ground.
Perform inspection after installation. Refer to FSU-12, "
Inspection and Adjustment".
Perform adjustment after installation. (With HBMC) Refer to FSU-12, "
Inspection and Adjustment".
After replacing the shock absorber, always follow the disposal procedure to discard the shock absorber.
Refer to FSU-13, "
Disposal".
Disassembly and AssemblyINFOID:0000000006273960
CAUTION:
The shock absorber assembly can not be disassembled. (With HBMC)
DISASSEMBLY (WITHOUT HBMC)
CAUTION:
Never damage shock absorber piston rod wh en removing components from shock absorber.
1. Install shock absorber attachment [SST: ST35652000 ( −)]
(A) to shock absorber and secure it in a vise.
CAUTION:
When installing the shock ab sorber attachment to shock
absorber, wrap a shop cloth around shock absorber to pro-
tect it from damage.
2. Using a spring compressor (commercial service tool) (A), com- press coil spring between rubber seat and shock absorber until
coil spring with a spring compressor is free.
CAUTION:
Be sure a spring compresso r is securely attached coil
spring. Compress coil spring
3. Check coil spring with a spring compressor between rubber seat and shock absorber is free. And then remove piston rod lock nut
while securing the piston rod tip so that piston rod does not turn.
4. Remove washer, bushings, shock absorber mounting bracket, tube, rubber seat, bound bumper cover, dust cover from shock
absorber.
5. After removing coil spring with a spring compressor, then gradually release a spring compressor. CAUTION:
Loosen while making sure coil spri ng attachment position does not move.
6. Remove the shock absorber at tachment from shock absorber.
7. Perform inspection after disassembly. Refer to FSU-12, "
Inspection and Adjustment".
ASSEMBLY (WITHOUT HBMC)
1. Install shock absorber attachment [SST: ST35652000 ( −)] to shock absorber and secure it in a vise.
CAUTION:
JPEIA0006ZZ
JPEIA0168ZZ
Revision: 2010 May2011 QX56

Page 2954 of 5598

INFINITI QX56 2011 Factory Service Manual
FSU-12
< REMOVAL AND INSTALLATION >
FRONT COIL SPRING AND SHOCK ABSORBER
When installing the shock absorber attachment to shock absorber, wrap a shop cloth around
shock absorber to protect it from da

FSU-12
< REMOVAL AND INSTALLATION >
FRONT COIL SPRING AND SHOCK ABSORBER
When installing the shock absorber attachment to shock absorber, wrap a shop cloth around
shock absorber to protect it from damage.
2. Compress coil spring using a spring compressor (commercial service tool), and install it onto shock absorber.
CAUTION:
Be sure a spring compressor is securely attach ed to coil spring. Compress coil spring.
Set coil spring so that its paint marks face downward.
3. Apply soapy water to dust cover. CAUTION:
Never use machine oil.
4. Install dust cover, bound bumper cover, rubber seat , bushings, tube, shock absorber mounting bracket,
and washer to shock absorber.
Install the shock absorber mounting bracket (1) as shown in the figure.
Check that the lower end of the coil spring (B) is positioned at the spring lower seat of the shock absorber.
5. Secure piston rod tip so that piston rod does not turn, then tighten piston rod lock nut to the specified torque.
6. Gradually release a spring compressor, and remove coil spring. CAUTION:
Loosen while making sure co il spring attachment position
does not move.
7. Remove the shock absorber attachment from shock absorber.
Inspection and AdjustmentINFOID:0000000006225644
INSPECTION AFTER REMOVAL (WITH HBMC)
Shock Absorber assembly
Check shock absorber assembly for oil leakage or other malfunctions. Replace it if necessary.
INSPECTION AFTER DISASSEMBLY (WITHOUT HBMC)
Shock Absorber
Check the following items, and replace the part if necessary.
Shock absorber for deformation, cracks or damage.
Piston rod for damage, uneven wear or distortion.
Oil leakage.
Shock Absorber Mounting Bracket and Rubber Parts Inspection
Check shock absorber mounting bracket for cracks and rubber parts for wear. Replace it if necessary.
Coil Spring
Check coil spring for cracks, wear or damage. Replace it if necessary.
INSPECTION AFTER INSTALLATION
1. Check wheel sensor harness for proper connection. Refer to BRC-134, "FRONT WHEEL SENSOR :
Exploded View".
2. Check wheel alignment. Refer to FSU-7, "
Inspection".
Angle (a) : 90
°
A : Shock absorber mounting bracket bolt
JPEIA0221ZZ
Revision: 2010 May2011 QX56

Page 2955 of 5598

INFINITI QX56 2011 Factory Service Manual
FRONT COIL SPRING AND SHOCK ABSORBERFSU-13
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
FSU
N
O P
3. Adjust neutral position of steering angle sensor. Refer to BRC-64, "Work Procedure".
4. Ad

Page 2956 of 5598

INFINITI QX56 2011 Factory Service Manual
FSU-14
< REMOVAL AND INSTALLATION >
LOWER LINK
LOWER LINK
Exploded ViewINFOID:0000000006225646
Removal and InstallationINFOID:0000000006225647
REMOVAL
1. Remove tires with power tool. Refer to WT-64,

Page 2957 of 5598

INFINITI QX56 2011 Factory Service Manual
LOWER LINKFSU-15
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
FSU
N
O P
12. Separate drive shaft from steering knuckle. (4WD) Refer to FAX-22, "Removal and Installation".
13. Remove lower lin

LOWER LINKFSU-15
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
FSU
N
O P
12. Separate drive shaft from steering knuckle. (4WD) Refer to FAX-22, "Removal and Installation".
13. Remove lower link from steering knuckle. Refer to FA X - 8 , "
Removal and Installation" (2WD), FAX-18,
"Removal and Installation" (4WD).
14. Remove protector A. (With HBMC) Refer to SCS-32, "
FRONT TUBE ASSEMBLY : Removal and Installa-
tion".
15. Remove bracket. (With HBMC) Refer to SCS-32, "
FRONT TUBE ASSEMBLY : Removal and Installation".
16. Remove adjusting bolts, nuts, eccentric discs, stopper rubber, and lower link from vehicle.
17. Remove bump rubber from lower link.
18. Perform inspection after removal. Refer to FSU-15, "
Inspection".
INSTALLATION
Note the following, and install in the reverse order of removal.
Protrusion (A) of bumper rubber (1) shall be installed securely to
hole of lower link (2).
Never tap on the ball joint cap of the stabilizer connecting rod with a hammer or a similar item when inserting the stabilizer connecting
rod into the lower link. (Without HBMC)
Perform final tightening of bolts and nuts at the front suspension member installation and shock absorber lower side (rubber bush-
ing), under unladen conditions with tires on level ground.
Perform inspection after installation. Refer to FSU-15, "
Inspection".
InspectionINFOID:0000000006225648
INSPECTION AFTER REMOVAL
Appearance
Check the following items, and replace the part if necessary.
Lower link and bushing for deformation, cracks or damage.
Ball joint boot for cracks or other damage, and also for grease leakage.
Ball Joint Inspection
Manually move ball stud to confirm it moves smoothly with no binding.
Swing Torque Inspection
1. Move the ball joint at least ten times by hand to check for smooth movement.
2. Hook a spring balance (A) at groove. Confirm spring balance
measurement value is within specifications when ball stud
begins moving.
If swing torque exceeds standard range, replace lower link assem- bly.
Rotating Torque Inspection
1. Move the ball joint at least ten times by hand to check for smooth movement.
2. Check that rotating torque is within specifications.
If rotating torque exceeds standard range, replace lower link assembly.
Axial End Play Inspection
1. Move the ball joint at least ten times by hand to check for smooth movement.
JPEIA0238GB
Swing toque : Refer to FSU-21, "Ball Joint".
JPEIA0005ZZ
Rotating toque : Refer to FSU-21, "Ball Joint".
Revision: 2010 May2011 QX56

Page 2958 of 5598

INFINITI QX56 2011 Factory Service Manual
FSU-16
< REMOVAL AND INSTALLATION >
LOWER LINK
2. Move tip of ball stud in axial direction to check for looseness.
If axial end play exceeds standard range, replace lower link assembly.
INSPECTION

Page 2959 of 5598

INFINITI QX56 2011 Factory Service Manual
UPPER LINKFSU-17
< REMOVAL AND INSTALLATION >
C
DF
G H
I
J
K L
M A
B
FSU
N
O P
UPPER LINK
Exploded ViewINFOID:0000000006225649
Removal and InstallationINFOID:0000000006225650
REMOVAL
1. Remove tires

Page 2960 of 5598

INFINITI QX56 2011 Factory Service Manual
FSU-18
< REMOVAL AND INSTALLATION >
UPPER LINK
INSTALLATION
Note the following, and install in the reverse order of removal.
Perform final tightening of bolts and nuts at the vehicle installation p

FSU-18
< REMOVAL AND INSTALLATION >
UPPER LINK
INSTALLATION
Note the following, and install in the reverse order of removal.
Perform final tightening of bolts and nuts at the vehicle installation position (rubber bushing), under unladenconditions with tires on level ground.
Perform inspection after installation. Refer to FSU-18, "
Inspection".
InspectionINFOID:0000000006225651
INSPECTION AFTER REMOVAL
Appearance
Check the following items, and replace the part if necessary.
Upper link and bushing for deformation, cracks or damage.
Ball joint boot for cracks or other damage, and also for grease leakage.
Ball Joint Inspection
Manually move ball stud to confirm it moves smoothly with no binding.
Swing Torque Inspection
1. Move the ball joint at least ten times by hand to check for smooth movement.
2. Hook a spring balance (A) at cotter pin mounting hole. Confirm
spring balance measurement value is within specifications when
ball stud begins moving.
If swing torque exceeds standard range, replace upper link assem- bly.
Rotating Torque Inspection
1. Move the ball joint at least ten times by hand to check for smooth movement.
2. Attach mounting nut to ball stud. Check that rotating torque is
within specifications with a preload gauge [SST: 3127S000 (J-
25765-A)] (A).
If rotating torque exceeds standard range, replace lower link assembly.
Axial End Play Inspection
1. Move the ball joint at least ten times by hand to check for smooth movement.
2. Move tip of ball stud in axial direction to check for looseness.
If axial end play exceeds standard range, replace upper link assembly.
INSPECTION AFTER INSTALLATION
1. Check wheel sensor harness for proper connection. Refer to BRC-134, "FRONT WHEEL SENSOR :
Exploded View".
2. Check wheel alignment. Refer to FSU-7, "
Inspection".
3. Adjust neutral position of steering angle sensor. Refer to BRC-64, "
Work Procedure".
Swing torque : Refer to
FSU-21, "
Ball Joint".
JPEIA0005ZZ
Rotating toque : Refer to FSU-21, "Ball Joint".
PDIA1258E
Axial end play : Refer to FSU-21, "Ball Joint".
Revision: 2010 May2011 QX56

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