2011 INFINITI QX56 Factory Service Manual

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Page 4385 of 5598

INFINITI QX56 2011 Factory Service Manual
CHECK SHOCK ABSORBER FOR MALFUNCTIONSCS-25
< BASIC INSPECTION > [HBMC]
C
D
F
G H
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M A
B
SCS
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- Disconnect upper side pipe (B) of front shock absorber.
For rear shock absorber
- Disconne

Page 4386 of 5598

INFINITI QX56 2011 Factory Service Manual
SCS-26
< BASIC INSPECTION >[HBMC]
CHECK SHOCK ABSORBER FOR MALFUNCTION
16. Shock absorber that is checked
is normal. Set knob (A) of sus-
pension oil pump to the direction as shown in the figure and

Page 4387 of 5598

INFINITI QX56 2011 Factory Service Manual
CHECK ORIFICE FOR CLOGGINGSCS-27
< BASIC INSPECTION > [HBMC]
C
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M A
B
SCS
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CHECK ORIFICE FOR CLOGGING
Work ProcedureINFOID:0000000006256015
CAUTION:
Clean surrounding areas of o

CHECK ORIFICE FOR CLOGGINGSCS-27
< BASIC INSPECTION > [HBMC]
C
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CHECK ORIFICE FOR CLOGGING
Work ProcedureINFOID:0000000006256015
CAUTION:
Clean surrounding areas of oil inj ection 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.
1. Remove protector of PPMU.
2. Remove cap of oil injection jack.
3. Install an oil pressure gauge (SST: KV40108000) (A) to oil injec- tion jack.
CAUTION:
Jack must be securely inserted until a click sound can beheard.
Pressure reducing valve (B) of the oil pressure gauge
must be closed.
4. Loosen needle valves A, C, and E of PPMU by approximately 2 rotations.
CAUTION:
Never loosen the needle valve more than required.
5. Lift up the vehicle. CAUTION:
Check that tires never contact the ground.
6. Tighten needle valves A, C, and E of PPMU.
7. Lift down the vehicle. CAUTION:
Check that the lift is fully lowered.
8. Loosen pressure reducing valve (A) of oil pressure gauge and then lower pressure.
CAUTION:
Be careful since oil drains sw iftly from oil drain hole (B).
9. Check that reading of oil pressure gauge is 0 MPa. Close pres- sure reducing valve.
10. Loosen needle valve E of PPMU by approximately 2 rotations. CAUTION:
Never loosen the needle valve more than required.
11. Write down a value of the oil pressure gauge.
12. Tighten needle valve E of PPMU.
13. Loosen pressure reducing valve of oil pressure gauge and then lower pressure. CAUTION:
Be careful since oil drains swiftly from oil drain hole.
14. Check that reading of oil pressure gauge is 0 MPa. Close pressure reducing valve.
15. Loosen needle valve A of PPMU by approximately 2 rotations. CAUTION:
Never loosen the needle valve more than required.
16. Read a value of the oil pressure gauge after 5 minutes.
17. Compare difference of reading with pressure reading in step 11.
JSEIA0186ZZ
JSEIA0187ZZ
JSEIA0188ZZ
Revision: 2010 May2011 QX56

Page 4388 of 5598

INFINITI QX56 2011 Factory Service Manual
SCS-28
< BASIC INSPECTION >[HBMC]
CHECK ORIFICE FOR CLOGGING
18. Tighten needle valve A of PPMU.
19. Loosen pressure reducing valve of oil pressure gauge and then lower pressure.
CAUTION:
Be careful

Page 4389 of 5598

INFINITI QX56 2011 Factory Service Manual
DIFFERENCE IN APPEARANCESCS-29
< SYMPTOM DIAGNOSIS > [HBMC]
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SYMPTOM DIAGNOSIS
DIFFERENCE IN APPEARANCE
DescriptionINFOID:0000000006256016
While the vehicle is stoppe

Page 4390 of 5598

INFINITI QX56 2011 Factory Service Manual
SCS-30
< SYMPTOM DIAGNOSIS >[HBMC]
LARGE ROLL ANGLE
LARGE ROLL ANGLE
DescriptionINFOID:0000000006256018
During cornering, inclination of the vehi
cle to outer side of corner is large.
Inspection Pro

Page 4391 of 5598

INFINITI QX56 2011 Factory Service Manual
HYDRAULIC BODY-MOTION CONTROL SYSTEMSCS-31
< REMOVAL AND INSTALLATION > [HBMC]
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REMOVAL AND INSTALLATION
HYDRAULIC BODY-MOT ION CONTROL SYSTEM
Hydraulic PipingINFOID:

Page 4392 of 5598

INFINITI QX56 2011 Factory Service Manual
SCS-32
< REMOVAL AND INSTALLATION >[HBMC]
HYDRAULIC BODY-MOTION CONTROL SYSTEM
FRONT TUBE ASSEMBLY : Exploded View
INFOID:0000000006256021
FRONT TUBE ASSEMBLY : Removal and InstallationINFOID:0000000

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