2010 INFINITI QX56 boot

POWER STEERING GEAR AND LINKAGEST-31
< DISASSEMBLY AND ASSEMBLY >
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POWER STEERING GEAR AND LINKAGE
Disassembly and AssemblyINFOID:0000000005147877
CAUTION:
• Secure steering gear assembly with a vise, using copper plates or something similar to prevent it
from being damaged. Do not grip cylinder with a vise.
• Before performing disassembly, clean steering gear assembly with kerosene. Be careful not to bring
any kerosene into contact with the di scharge and return port connectors.
DISASSEMBLY
1. Remove cylinder tubes from gear housing assembly.
2. Loosen lock nuts of outer sockets, and remove outer sockets.
3. Remove boot clamps of the small diameter si de and the large diameter side, then remove boot.
CAUTION:
When removing boots, be careful not to damage inner socket and gear housing assembly. If they
are damaged, change th em to avoid oil leaks.
4. Remove inner sockets.
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for tears, cracks and deformation. Replace if necessary.
1. Boot clamp 2. Inner socket3. Boot
4. Boot clamp 5. Outer socket6. Cylinder tubes
7. Gear housing assembly 8. Connector
AWGIA0116GB
Revision: April 20092010 QX56

ST-32
< DISASSEMBLY AND ASSEMBLY >
POWER STEERING GEAR AND LINKAGE
Gear Housing Assembly
Check gear housing assembly for dents, cracks or damage. Replace as an assembly if necessary.
Outer Socket and Inner Socket
SWING TORQUE• Measure the swing torque, using suitable tool. When ball stud and inner socket start moving the measured
value must be within the specification. If the reading is outside the specification, replace the socket. Refer to
ST-36, "
Steering Outer Socket and Inner Socket".
ROTATING TORQUE• Measure the rotating torque, using Tool. If the value is outside the specification, replace the outer sockets.
AXIAL END PLAY• Apply a load of 490 N (50 kg-f, 110 lb-f) to the ball stud axially. Usea dial gauge to measure the amount of the movement that the stud
makes. If the value is outside the specification, replace the sock-
ets.
ASSEMBLY
1. Install the inner sockets.
2. Install the large-diameter side of the boots to the gear housing assembly.
3. Install the small-diameter side of the boots to the groove of the inner sockets.
Item Outer socket Inner socket
Measuring point Cotter pin hole of stud Shown as L: 83.2 mm (3.276 in)
Swing torque 0.3 − 2.9 N·m (0.03 − 0.29 kg-m, 3 − 25 in-lb) 1.0 − 7.8 N·m (0.11 − 0.79 kg-m, 9 − 69 in-lb)
Measuring value (F) 4.84 − 46.7 N (0.50 − 4.7 kg-f, 4 - 34 lb-f) 12.1 − 93.7 N (1.3 − 9.5 kg-f, 9 − 69 lb-f)
Tool number : ST3127S000 (J-25765-A)
Rotating torque : 0.3 − 2.9 N·m (0.03 − 0.29 kg-m,
3 − 25 in-lb)
WGIA0132E
Outer socket : 0.5 mm (0.020 in) or less
Inner socket : 0.2 mm (0.008 in) or less
SGIA0057E
SGIA0550E
Revision: April 20092010 QX56

POWER STEERING GEAR AND LINKAGEST-33
< DISASSEMBLY AND ASSEMBLY >
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4. Install the boot clamps to the boots, as shown. CAUTION:
Do not reuse the large-diameter boot clamps.
5. Crimp the large-diameter boot clamps, using Tool.
6. Install the cylinder tubes to the gear housing assembly.
7. Install the lock nuts and outer sockets to the inner sockets.
8. Thread the outer sockets onto the inner sockets to the specified length (L), then tighten the lock nut s to the specification. Refer to
ST-23, "
Removal and Installation". Reconfirm that the tie-rod
length (L) is within specification.
AST139
Tool number : KV40107300 ( — )
RAC1133D
Maximum inner socket
length (L) : 102.2 mm (4.02 in)
SGIA0167E
Revision: April 20092010 QX56