Infiniti QX56 (Z62). Manual — part 1098
DIFFERENCE IN APPEARANCE
SCS-29
< SYMPTOM DIAGNOSIS >
[HBMC]
C
D
F
G
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K
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A
B
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SYMPTOM DIAGNOSIS
DIFFERENCE IN APPEARANCE
Description
INFOID:0000000006256016
While the vehicle is stopped, the difference of vehicle height of right side and left side (between wheel center
and wheel arch) is 25 mm (0.98 in) or more.
Inspection Procedure
INFOID:0000000006256017
1.
CHECK APPEARANCE
1.
Visually check that the exterior parts (e.g. suspension spring) have no malfunctions.
2.
Visually check tube and pipe for crush or oil leakage.
Is the check result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
CHECK CLOGGING OF ORIFICE IN PPMU
1.
Install an oil pressure gauge (SST: KV40108000) (A) to oil injec-
tion jack.
CAUTION:
• Clean surrounding areas of oil injection jack using steam
before starting operation, since there may be mud on it.
• Clean oil pressure gauge (special service tool:
KV40108000) jack with steam before use.
• Jack must be securely inserted until a click sound can be
heard.
• Pressure reducing valve (B) of the oil pressure gauge
must be closed.
2.
Loosen needle valves A and C of PPMU by approximately 2
rotations for check changes in vehicle height.
CAUTION:
Never loosen the needle valve more than required.
3.
Tighten needle valve A and C of PPMU to the specified torque
after the inspection.
Does the vehicle height change 10 mm (0.39 in) or more?
YES
>> For detailed inspection of clogging of orifice in PPMU,
.
NO
>> INSPECTION END
JSEIA0186ZZ
Tightening torque
: 8.3 N·m (0.85 kg-m, 73 in-lb)
JSEIA0187ZZ
SCS-30
< SYMPTOM DIAGNOSIS >
[HBMC]
LARGE ROLL ANGLE
LARGE ROLL ANGLE
Description
INFOID:0000000006256018
During cornering, inclination of the vehicle to outer side of corner is large.
Inspection Procedure
INFOID:0000000006256019
1.
CHECK APPEARANCE
1.
Visually check that the exterior parts (e.g. suspension spring) have no malfunctions.
2.
Visually check tube and pipe for crush or oil leakage.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
CHECK NEEDLE VALVE OF PPMU
Check that needle valves A and C are tightened to the specified
torque.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Tighten to the specified torque.
3.
SYSTEM PRESSURE CHECK
Check system pressure. Refer to
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Perform adjustment of system pressure. Refer to
.
4.
CHECK INTERNAL LEAKAGE
Check internal leakage. Refer to
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
CHECK MALFUNCTIONING PART
Identify malfunctioning part. Refer to
Does the pressure increase?
YES
SCS-39, "PPMU, MIDDLE TUBE ASSEMBLY, PPMU PIPE :
NO
>> GO TO 6.
6.
CHECK SHOCK ABSORBER
Identify malfunctioning shock absorber. Refer to
.
>> Replace identified shock absorber. Refer to
FSU-10, "Removal and Installation"
(rear).
Tightening torque
: 8.3 N·m (0.85 kg-m, 73 in-lb)
JSEIA0187ZZ
HYDRAULIC BODY-MOTION CONTROL SYSTEM
SCS-31
< REMOVAL AND INSTALLATION >
[HBMC]
C
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H
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A
B
SCS
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REMOVAL AND INSTALLATION
HYDRAULIC BODY-MOTION CONTROL SYSTEM
Hydraulic Piping
INFOID:0000000006256020
FRONT TUBE ASSEMBLY
1.
Middle tube assembly RH
2.
Accumulator assembly RH
3.
Front tube assembly A
4.
Front tube assembly B
5.
Accumulator assembly LH
6.
PPMU pipe A
7.
PPMU assembly
8.
Middle tube assembly LH
9.
PPMU pipe B
10.
Rear tube assembly A
11.
Rear tube assembly B
:
Vehicle front
JSEIA0228ZZ
SCS-32
< REMOVAL AND INSTALLATION >
[HBMC]
HYDRAULIC BODY-MOTION CONTROL SYSTEM
FRONT TUBE ASSEMBLY : Exploded View
INFOID:0000000006256021
FRONT TUBE ASSEMBLY : Removal and Installation
INFOID:0000000006256022
REMOVAL
Front Tube Assembly A (from Front Shock Absorber RH Upper to Front Shock Absorber LH Lower)
1.
Reduce system pressure. Refer to
1.
Protector B
2.
Bushing
3.
Collar
4.
Bleeder valve
5.
Cap
6.
O-ring
7.
Front tube assembly A
8.
Front tube assembly B
9.
Protector A
A.
To front shock absorber LH
B.
To front shock absorber RH
: Vehicle front
:
Apply genuine NISSAN hydraulic
suspension fluid
Refer to
for symbols not described on the above.
JSEIA0229GB
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