2011 INFINITI QX56 boot

STEERING GEAR AND LINKAGEST-43
< REMOVAL AND INSTALLATION >
C
DE
F
H I
J
K L
M A
B
ST
N
O P
4. Remove cotter pin (1), and then loosen the nut.
5. Remove steering outer socket (2) from steering knuckle (3) so as not to damage ball joint boot (4) using suitable ball joint
remover (commercial service tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover from suddenly coming
off.
6. Remove high pressure piping and low pressure piping of hydraulic piping, and then drain power steering fluid.
7. Remove power steering solenoid valve harness connector.
8. Remove lower joint fixing bolt (steering gear side).
9. Separate the lower joint from the steering gear assembly. Refer to ST-37, "
Exploded View".
CAUTION:
 When removing lower joint, n ever insert a tool, such as a screw driver, into the yoke groove to
pull out the lower joint. In case of the violation of the above, replace lower joint with a new one.
 Spiral cable may be cut if steering wheel tu rns while separating steering column assembly and
steering gear assembly. Be sure to secure st eering wheel using string to avoid turning.
10. Remove steering gear assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Spiral cable may be cut if steering wheel turns while separating steering column assembly and steer-
ing gear assembly. Be sure to secure steer ing wheel using string to avoid turning.
 When installing lower joint to steering gear assembly, follow the procedure listed below.
- Set rack of steering gear in the neutral position.
NOTE:
To get the neutral position of rack, turn gear-sub a ssembly and measure the distance of inner socket, and
then measure the intermediat e position of the distance.
- Align rear cover cap projection (A) with the marking position of gear housing assembly (B).
- Install slit part of lower joint (C) aligning with the rear cover cap projection (A). Make sure that the slit part of lower joint (C) is
aligned with rear cover cap projection (A) and the marking position
of gear housing assembly (B).
 Never reuse cotter pin and steering gear mounting nut.
 Perform inspection after installation. Refer to ST-46, "
Inspection".
Disassembly and AssemblyINFOID:0000000006225609
DISASSEMBLY
CAUTION:
 Disassemble and assemble steering gear assembly by fixing the mounting area with a vise using
copper plates.
 Clean steering gear assembly with kerosene before disassembling. Be careful to avoid splashing or
applying any kerosene over connector of discharge port or return port.
1. Remove cylinder tubes from gear housing assembly.
2. Remove rear cover cap from gear-sub assembly.
PGIA0063E
: Bolt
JPGIA0038ZZ
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

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