2011 INFINITI QX56 lock

POWER STEERING FLUIDST-31
< PERIODIC MAINTENANCE >
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3. Repeat step 2 above several times at approximately 3 seconds intervals. CAUTION:
Never hold the steering wheel in a locked positio n for more than 10 seconds. (There is the possi-
bility that oil pump may be damaged.)
4. Check fluid for bubbles and while contamination.
5. Stop engine if bubbles and white contamination do not drain out. Perform step 2 and 3 above after waiting
until bubbles and white contamination drain out.
6. Stop the engine, and then check fluid level.
Revision: 2010 May2011 QX56

STEERING WHEELST-33
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
STEERING WHEEL
Exploded ViewINFOID:0000000006225599
Removal and InstallationINFOID:0000000006225600
REMOVAL
NOTE:
When reconnecting spiral cable, fix cable with a tape so that fixing case and rotating part keep aligned. This
will omit neutral position alignment procedure during spiral cable installation.
1. Set vehicle to the straight-ahead position.
2. Remove driver air bag module. Refer to SR-11, "
Removal and Installation".
3. Remove steering wheel lock nut after steering is locked.
4. Remove steering wheel with the steering wheel puller (A) [SST: ST27180001 (J-25726-A)].
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Never twist spiral cable freely on excessively after it becomes tight (doing so may cause the cable to
tear off).
NOTE:
Check the spiral cable neutral position after r eplacing or rotating spiral cable. Refer to SR-14, "
Removal and
Installation".
1. Steering wheel
Refer to GI-4, "
Components" for symbols in the figure.
JSGIA0704GB
JSGIA0711ZZ
Revision: 2010 May2011 QX56

ST-40
< REMOVAL AND INSTALLATION >
STEERING SHAFT
 Rotate the steering shaft to check runout of the steering shaft atthe runout measuring point ( ) by using dial indicator and V-block.
 Check each part of steering shaft for damage and other malfunc- tions. Replace if there is a malfunction.
INSPECTION AFTER INSTALLATION
 Check dust boot bellows (deformation, such as dent s). Manually rework the bellows, as necessary.
 Check if steering wheel turns smoothly when it is tur ned several times fully to the end of the left and right.
 Check the steering wheel play, neutral position steeri ng wheel, steering wheel turning force, and front wheel
turning angle. Refer to ST-32, "
Inspection".
 Adjust neutral position of steering angle sensor. Refer to BRC-64, "
Work Procedure".
Runout : Refer to
ST-58, "
Steering Shaft Sliding
Range".
A : 120 mm (4.72 in)
B : 240 mm (9.45 in)
JPGIA0075ZZ
Revision: 2010 May2011 QX56

STEERING GEAR AND LINKAGEST-41
< REMOVAL AND INSTALLATION >
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STEERING GEAR AND LINKAGE
Exploded ViewINFOID:0000000006225607
REMOVAL
DISASSEMBLY
Engine speed sensitive type
1. Steering gear assembly 2. Cotter pin
Refer to GI-4, "
Components" for symbols in the figure.
JPGIA0072GB
JPGIA0095GB
1. Outer socket 2. Boot clamp 3. Boot
4. Inner socket 5. Boot clamp 6. Gear housing assembly
7. Adjusting screw 8. Adjusting screw lock nut 9. Spring
Revision: 2010 May2011 QX56

ST-42
< REMOVAL AND INSTALLATION >
STEERING GEAR AND LINKAGE
Vehicle speed sensitive type
Removal and InstallationINFOID:0000000006225608
REMOVAL
1. Set vehicle to the straight-ahead position.
2. Remove tires.
3. Remove front final drive assembly. Refer to DLN-162, "
Removal and Installation".
10. Retainer 11. O-ring 12. Low pressure piping
13. Gear-sub assembly 14. Rear cover cap 15. Cylinder tubes
: Apply power steering fluid.
: Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to GI-22, "
Recommended Chemical Products
and Sealants".
: A p p l y G e n u i n e L i q u i d G a s k e t , T h r e e B o n d 1111 B o r e q u i v a l e n t . : Apply multi-purpose grease.
Refer to GI-4, "
Components" for symbols not described on the above.
JPGIA0073GB
1. Outer socket 2. Boot clamp 3. Boot
4. Inner socket 5. Boot clamp 6. Gear housing assembly
7. Adjusting screw 8. Adjusting screw lock nut 9. Spring
10. Retainer 11. O-ring 12. Low pressure piping
13. Power steering solenoid valve 14. Gear-sub assembly 15. Rear cover cap
16. Cylinder tubes
: Apply power steering fluid.
: Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to GI-22, "
Recommended Chemical Products
and Sealants".
: A p p l y G e n u i n e L i q u i d G a s k e t , T h r e e B o n d 1111 B o r e q u i v a l e n t . : Apply multi-purpose grease.
Refer to GI-4, "
Components" for symbols not described on the above.
Revision: 2010 May2011 QX56

ST-44
< REMOVAL AND INSTALLATION >
STEERING GEAR AND LINKAGE
3. Measure adjusting screw height (H), and loosen adjusting screwlock nut (1) and adjusting screw (2).
CAUTION:
 Never loosen adjusting screw 2 turns or more.
 Replace steering gear assembly if adjusting screw is
loosened 2 turns or more and it is removed.
4. Remove gear-sub assembly from gear housing assembly.
5. Remove O-ring from gear housing assembly.
6. Loosen outer socket lock nut, and remove outer socket.
7. Remove boot clamps, and then remove boot from inner socket. CAUTION:
Never damage inner socket and gear housing assembly when removing boot. Inner socket and
gear housing assembly must be replaced if inne r socket and gear housing assembly are damaged
because it may cause foreign material interfusion.
8. Remove inner socket from gear housing assembly.
ASSEMBLY
1. Apply recommended fluid to O-ring, and then install O-ring to gear housing assembly. CAUTION:
Never reuse O-ring.
2. Install gear-sub assembly to gear housing assembly. CAUTION:
In order to protect oil seal from any da mage, insert gear-sub assembly straightly.
3. Install inner socket to gear housing assembly with the following procedure.
a. Apply thread locking sealant into the thread of inner socket. Use Genuine High Strength Thread Locking Sealant or equivalent. Refer to GI-22, "
Recommended
Chemical Products and Sealants".
4. Screw inner socket into rack part and tighten at the specified torque.
5. Decide on the neutral position of the rack stroke (L).
6. Install rear cover cap to gear sub-assembly. CAUTION:
Make sure that the projection of rear cover cap is aligned
with the marking position of gear housing assembly.
7. Install adjusting screw with the following procedure.
a. Apply recommended sealant into the thread of adjusting screw (2) (2 turns thread), and then screw in the adjusting screw until it
reaches height (H) from gear housing assembly (3) measured
before disassembling.
Use Genuine Liquid Gasket Gasket, Three Bond 1111B or
equivalent.
b. Tighten the adjusting screw lock nut (1) to the specified torque.
8. Move rack assembly 10 strokes throughout the full stroke so that the parts can fit with each other.
9. Adjust pinion rotating torque with the following procedure.
3 : Gear housing assembly
JPGIA0065ZZ
L : Refer to ST-58, "Rack Stroke".
SGIA0877E
JPGIA0065ZZ
Revision: 2010 May2011 QX56

STEERING GEAR AND LINKAGEST-45
< REMOVAL AND INSTALLATION >
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a. Measure pinion rotating torque within ±180 ° of neutral position
of the rack assembly using Tools. Stop the gear at the point
where highest torque is read.
b. Loosen adjusting screw lock nut and adjusting screw and then retighten to 5.4 N·m (0.55 kg-m, 48 in-lb), and then loosen by 20
to 40 °.
c. Measure pinion rotating torque using tools to make sure that the measured value is within the standard. Readjust if the value is
outside the standard. Replace steering gear assembly, if the
value is outside the standard after readjusting, or adjusting
screw rotating torque is 5 N·m (0.51 kg-m, 44 in-lb) or less.
d. Apply thread locking sealant to inner socket and turn pinion fully to left with inner socket installed to gear housing assembly.
e. Install dial gauge at 5 mm (0.20 in) (L) from the edge of gear housing assembly (1), and tooth point.
f. Measure vertical movement of rack assembly when pinion is turned clockwise with torque of 19.6 N·m (2.0 kg-m, 14 ft-lb).
Readjust adjusting screw angle if the measured value is outside
the standard.
 If reading is outside of the specification, readjust screw angle
with adjusting screw.
CAUTION:
 If reading is still outside of sp ecification, or if the rotating torque of adjusting screw is less
than 5 N·m (0.51 kg-m, 44 in-lb), replace steering gear assembly.
 Never turn adjusting scr ew more than twice.
 Replace steering gear assembly when adjusting screw is removed or turned more than twice.
A: Preload gauge [SST: ST3127S000 (J-25765-A)]
B: Preload adapter [SST: KV48103400 ( — )]
SGIA1383E
Pinion rotating torque (engine speed sensitive type)
Around neutral position
(within ±100 °) average “A” : 1.16 – 1.31 N·m (0.12 –
0.13 kg-m, 10.3 – 11.5 in-lb)
Maximum variation “B” : 1.43 N·m (0.15 kg-m, 13 in-lb)
Pinion rotating torque (veh icle speed sensitive type)
Around neutral position
(within ±100 °) average “A” : 1.10 – 1.41 N·m (0.12 –
0.14 kg-m, 10 – 12 in-lb)
Maximum variation “B” : 1.43 N·m (0.15 kg-m, 13 in-lb)
Vertical movement : 0.265 mm (0.0104 in)
PGIA0084E
JSGIA0104ZZ
Revision: 2010 May2011 QX56

ST-46
< REMOVAL AND INSTALLATION >
STEERING GEAR AND LINKAGE
10. Install large end of boot to gear housing assembly.CAUTION:
Never reuse boot.
11. Install small end of boot to inner socket boot mounting groove.
12. Install boot clamp to boot small end.
13. Install boot clamp to the large side using the boot band crimping tool (A) [SST: KV40107300 ( — )].
CAUTION:
Never reuse boot clamp.
14. Install cylinder tubes to gear housing assembly.
15. Adjust inner socket to standard length (L), and then tighten lock nut to the specified torque. Check length again after tightening
lock nut.
CAUTION:
Adjust toe-in after this proced ure. The length achieved after
toe-in adjustment is not necessary the above value.
InspectionINFOID:0000000006225610
INSPECTION AFTER DISASSEMBLY
Boot
 Check boot for cracks, and replace it if a malfunction is detected.
Rack Assembly
 Check rack for damage or wear, and replace it if a malfunction is detected.
Gear-Sub Assembly
 Check gear-sub assembly for damage or wear, and replace it if a malfunction is detected.
 Rotate gear-sub assembly and check for torque variation or rattle, and replace it if a malfunction is detected.
Gear Housing Assembly
 Check gear housing assembly for damage and scratches (inner wall), and replace it if a malfunction is
detected.
Outer Socket and Inner Socket
 Check the following items and replace the component if it does not meet the standard.
BALL JOINT SWINGING TORQUE
SGIA1325E
PDIA1187J
L : Refer to ST-58, "Inner Socket Length".
SGIA0167E
Revision: 2010 May2011 QX56