Infiniti Q45 (FY33). Manual — part 543
SST087B
15. Install diaphragm spring at retainer.
I
Always install retainer, spring washer and diaphragm spring in
that order.
I
Make sure convex end (painted white) of diaphragm spring
faces outward when installing.
16. Install retainer spring and adjusting screw temporarily.
SST022C
CAUTION:
Ensure steering gear spacer is installed with rubber side fac-
ing rack.
I
Attach lock plate
q
2
to side rod inner socket
q
1
.
I
Insert steering gear spacer
q
5
to rack
q
4
.
I
Apply locking sealant to inner socket threads
q
3
.
Screw inner socket into rack
q
4
and tighten to specified torque.
I
Stake lock plate at two places.
SST328B
17. Install steering gear spacer
q
5
to lock plate
q
2
.
SST093B
18. Tighten outer socket lock nut.
Tie-rod length “L”:
Refer to SDS (ST-38).
SST307BA
19. Measure rack stroke.
Rack stroke “S”:
Refer to SDS (ST-38).
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
RS
BT
HA
EL
IDX
POWER STEERING GEAR AND LINKAGE
Assembly (Cont’d)
ST-23
SST329B
20. Before installing boot, coat the contact surfaces between boot
and tie-rod with grease.
SST097B
21. Install boot clamps.
I
To install, wrap boot clamp around boot groove twice. To
tighten clamp, place a screwdriver through both rings. Twist
rings 4 to 4-1/2 turns while pulling with a force of approx. 98 N
(10 kg, 22 lb).
SST741C
I
Install boot clamp so that it is to the rear of the vehicle when
gear housing is attached to the body. (This will prevent inter-
ference with other parts.)
SST440A
I
Twist boot clamp in the direction shown in figure at left.
SST126B
I
After twisting boot clamp, bend twisted and diagonally so it
does not contact boot.
POWER STEERING GEAR AND LINKAGE
Assembly (Cont’d)
ST-24
SST742C
Adjustment
Adjust pinion rotating torque as follows:
1.
Set gears to Neutral without fluid in the gear.
2.
Coat the adjusting screw with locking sealant and screw it in.
3.
Lightly tighten lock nut.
4.
Tighten adjusting screw to a torque of 4.9 to 5.9 N
⋅
m (50 to 60
kg-cm, 43 to 52 in-lb).
5.
Loosen adjusting screw, then retighten it to 0.05 to 0.20 N
⋅
m
(0.5 to 2 kg-cm, 0.43 to 1.74 in-lb).
6.
Move rack over its entire stroke several times.
SST683C
7.
Measure pinion rotating torque within the range of 180° from
neutral position.
Stop the gear at the point of maximum torque.
8.
Loosen adjusting screw, then retighten it to 4.9 N
⋅
m (50 kg-cm,
43 in-lb).
9.
Loosen adjusting screw by 50° to 110°.
SST713C
10. Prevent adjusting screw from turning, and tighten lock nut to
specified torque.
SST090B
11. Check steering gear for rack sliding frictional force.
Around neutral point of rack stroke
±5.5 mm (±0.217 in):
122.6 - 166.7 N (12.5 - 17 kg, 27.6 - 37.5 lb)
Except for neutral point:
122.6 - 186.3 N (12.5 - 19 kg, 27.6 - 41.9 lb)
I
If sliding frictional force is out of specification, repeat the
adjustment procedure, starting from No. 4.
I
After the readjustment, if sliding force is still out of
specification, steering gear is damaged.
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
RS
BT
HA
EL
IDX
POWER STEERING GEAR AND LINKAGE
ST-25
SST683C
12. Measure pinion rotating torque within the range of ±100° from
the neutral point.
Average rotating torque
[(Max. measured value + Min. measured value) x 0.5]:
0.8 - 1.3 N
⋅
m (8 - 13 kg-cm, 6.9 - 11.3 in-lb)
Maximum torque increment:
Less than 0.4 N
⋅
m (4 kg-cm, 3.5 in-lb)
Except for above mentioned measuring range:
Maximum rotating torque
1.9 N
⋅
m (19 kg-cm, 16 in-lb)
Maximum torque increment
Less than 0.6 N
⋅
m (6 kg-cm, 5.2 in-lb)
I
If pinion rotating torque is not within specification, readjust it.
I
After the readjustment, if pinion rotating torque is still out of
specification, steering gear is damaged.
SST090B
13. Check rack sliding force on vehicle as follows:
a.
Install steering gear onto vehicle, but do not connect tie-rod to
knuckle arm.
b.
Connect all piping and fill with steering fluid.
c.
Start engine and bleed air completely.
d.
Disconnect steering column lower joint from the gear.
e.
Keep engine at idle and make sure steering fluid has reached
normal operating temperature.
f.
Pull tie-rod slowly to move it from neutral position to ±11.5 mm
(±0.453 in) at speed of 3.5 mm (0.138 in)/s. Check that rack
sliding force is within specification.
Rack sliding force:
16 inch tire
235 - 294 N (24 - 30 kg, 53 - 66 lb)
17 inch tire
255 - 294 N (26 - 30 kg, 57 - 66 lb)
g.
Check sliding force outside above range.
Rack sliding force:
Not more than 294 N (30 kg, 66 lb)
I
If rack sliding force is not within specification, readjust by
repeating adjustment procedure from the beginning.
I
If rack sliding force is still out of specification after
readjustment, gear assembly needs to be replaced.
POWER STEERING GEAR AND LINKAGE
Adjustment (Cont’d)
ST-26
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