Infiniti QX56 (Z62). Manual - part 1100

 

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Infiniti QX56 (Z62). Manual - part 1100

 

 

HYDRAULIC BODY-MOTION CONTROL SYSTEM

SCS-37

< REMOVAL AND INSTALLATION >

[HBMC]

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Never remove mounting bolts of protector.

1.

Reduce system pressure. Refer to 

SCS-17, "Work Procedure"

.

2.

Disconnect pipe (A) of accumulator assembly RH from right side
3-way (B).

3.

Remove pipe (A) of accumulator assembly RH from right side
middle joint (B).

4.

Separate chassis and body. Refer to 

DLK-251, "Removal and

Installation"

.

5.

Remove mounting bolts of each bracket.

6.

Remove mounting bolts of accumulator assembly RH.

WARNING:

Never remove mounting bolts of protector.

7.

Remove accumulator assembly RH from the vehicle.

8.

Perform inspection after removal. Refer to 

SCS-38, "ACCUMU-

LATOR : Inspection"

.

INSTALLATION

Note the following, and install in the reverse order of removal.
• Apply genuine NISSAN hydraulic suspension fluid to O-ring.
• Check connection portion of each piping for dirt or dust.

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SCS-38

< REMOVAL AND INSTALLATION >

[HBMC]

HYDRAULIC BODY-MOTION CONTROL SYSTEM

• Completely engage hooks on frame when installing accumulator

assembly.

ACCUMULATOR : Inspection

INFOID:0000000006256026

INSPECTION AFTER REMOVAL

• O-ring must be free of scratches and damage.
• Pipe and tube must be free of scratches and damage.

INSPECTION AFTER INSTALLATION

Check oil leakage, twists, deformation, contact with other parts, and loose connections.

ADJUSTMENT AFTER INSTALLATION

Perform air bleeding. Refer to 

SCS-18, "Work Procedure"

.

ACCUMULATOR : Disposal

INFOID:0000000006256027

CAUTION:

• Always wear safety goggles.
• Always wear safety gloves.
• Be careful since pressure is higher when temperature is high.
• Be careful since metal shavings or oil may be blown away by compressed gas.
• Discard drained oil in accordance with local laws and regulations.

WORK PROCEDURE

1.

Remove both tanks using an oil filter wrench.

2.

Secure tank using a vise.

3.

Drill a hole as shown in the figure (

z

) using an electric drill.

Drain gas and oil.
NOTE:
• Gas is colorless, odorless, and harmless.
• Use an electric drill with a drill bit of approximately 4 mm (0.16

in).

• Drilling a hole is easier when electric drill speed is slow.

PPMU, MIDDLE TUBE ASSEMBLY, PPMU PIPE

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HYDRAULIC BODY-MOTION CONTROL SYSTEM

SCS-39

< REMOVAL AND INSTALLATION >

[HBMC]

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PPMU, MIDDLE TUBE ASSEMBLY, PPMU PIPE : Exploded View

INFOID:0000000006256028

PPMU, MIDDLE TUBE ASSEMBLY, PPMU PIPE : Removal and Installation

INFOID:0000000006256029

REMOVAL

PPMU

1.

PPMU pipe B

2.

Cap

3.

Middle tube assembly RH

4.

O-ring

5.

Bleeder valve

6.

Middle tube assembly LH

7.

PPMU

8.

Cap

9.

Protector

10.

PPMU pipe A

A.

To rear shock absorber RH

B.

To rear shock absorber LH

: Vehicle front

:

Apply genuine NISSAN hydraulic 
suspension fluid

Refer to 

GI-4, "Components"

 for symbols not described on the above.

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SCS-40

< REMOVAL AND INSTALLATION >

[HBMC]

HYDRAULIC BODY-MOTION CONTROL SYSTEM

1.

Reduce system pressure. Refer to 

SCS-17, "Work Procedure"

.

2.

Remove protector.

3.

Disconnect PPMU pipe A and PPMU pipe B from PPMU.

4.

Remove mounting bolts of PPMU.

5.

Remove PPMU from the vehicle.

6.

Perform inspection after removal. Refer to 

SCS-43, "PPMU, MIDDLE TUBE ASSEMBLY, PPMU PIPE :

Inspection"

.

Middle Tube Assembly LH (from Rear Shock Absorber LH Upper to Left Side Middle Joint)

1.

Reduce system pressure. Refer to 

SCS-17, "Work Procedure"

.

2.

Remove PPMU.

3.

Disconnect upper side pipe (A) of rear shock absorber LH.

4.

Disconnect pipe (A) of rear tube assembly B from left side rear
joint (B).

5.

Disconnect pipe (A) of accumulator assembly LH from left side
middle joint (B).

6.

Disconnect PPMU pipe A (A) from left side middle joint (B).

7.

Separate chassis and body. Refer to 

DLK-251, "Removal and

Installation"

.

8.

Remove mounting bolts of each bracket.

9.

Remove middle tube assembly LH from the vehicle.

10. Perform inspection after removal. Refer to 

SCS-43, "PPMU,

MIDDLE TUBE ASSEMBLY, PPMU PIPE : Inspection"

.

B

: Lower side pipe

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