Infiniti QX56 (Z62). Manual — part 1100
HYDRAULIC BODY-MOTION CONTROL SYSTEM
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< REMOVAL AND INSTALLATION >
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Never remove mounting bolts of protector.
1.
Reduce system pressure. Refer to
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
.
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
.
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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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
ACCUMULATOR : Disposal
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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
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PPMU, MIDDLE TUBE ASSEMBLY, PPMU PIPE : Exploded View
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PPMU, MIDDLE TUBE ASSEMBLY, PPMU PIPE : Removal and Installation
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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
for symbols not described on the above.
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HYDRAULIC BODY-MOTION CONTROL SYSTEM
1.
Reduce system pressure. Refer to
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 :
.
Middle Tube Assembly LH (from Rear Shock Absorber LH Upper to Left Side Middle Joint)
1.
Reduce system pressure. Refer to
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
.
8.
Remove mounting bolts of each bracket.
9.
Remove middle tube assembly LH from the vehicle.
10. Perform inspection after removal. Refer to
MIDDLE TUBE ASSEMBLY, PPMU PIPE : Inspection"
B
: Lower side pipe
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