1996 TOYOTA LAND CRUISER Ect

SR16M−01
−
STEERING POWER STEERING GEAR
SR−35
1996 LAND CRUISER (RM451U)
REMOVAL
1. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
2. REMOVE STEERING WHEEL PAD (See page SR−11)
3. REMOVE STEERING WHEEL (See page SR−11)
4. REMOVE FRAME SEAL
5. REMOVE LINK JOINT PROTECTOR
Remove the 2 bolts.
6. DISCONNECT PITMAN ARM WITH RELAY ROD
(a) Remove the pitman arm set nut and spring washer.
(b) Using SST, disconnect the pitman arm from the gear as- sembly.
SST 09628−62011
7. DISCONNECT PRESSURE FEED AND RETURN TUBES
Using SST, disconnect the pressure feed and return tubes. SST 09631−22020
8. DISCONNECT SLIDING YOKE SUB−ASSEMBLY
(See page SR−13 )
9. REMOVE PS GEAR ASSEMBLY
Remove the 4 installation bolts and nuts.
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SR16O−01
Z14503
Dial Indicator30 mm
(1.18 in.)
Z14504
Dial Indicator
Z10600
Z06211
SR−38
−
STEERING POWER STEERING GEAR
1996 LAND CRUISER (RM451U)
INSPECTION
NOTICE:
When using a vise, do not overtighten it.
1. INSPECT BALL CLEARANCE
Using a dial indicator, check the ball clearance. Move the worm
gear up and down. Maximum clearance: 0.15 mm (0.0059 in.)
2. INSPECT CROSS SHAFT ADJUSTING SCREW THRUST CLEARANCE
Using a dial indicator, measure the thrust clearance. Standard clearance: 0.03 − 0.05 (0.0012 − 0.0020 in.)
3. IF NECESSARY, ADJUST CROSS SHAFT ADJUSTING SCREW THRUST CLEARANCE
(a) Using a chisel and hammer, unstake the No.1 lock nut.
(b) Using SST, remove the No.1 lock nut. SST 09630−00014 (09631 −00051)
(c) Using a screwdriver, adjust the adjusting screw for correct thrust clearance.
(d) Using the SST, tighten a new lock nut.
(e) Using a chisel and hammer, stake the lock nut.
4. IF NECESSARY, REPLACE OIL SEAL, METAL SPACER AND TEFLON RING
(a) Using a screwdriver, pry out the oil seal from the gear
housing.
(b) Using snap ring pliers, remove the snap ring from the gear
housing.
(c) Remove the metal spacer, teflon ring and O −ring from the
gear housing.
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SR2804
−
STEERING POWER STEERING GEAR
SR−39
1996 LAND CRUISER (RM451U)
(d) Coat a new O− ring and metal spacer with power steering
fluid and install them.
(e) Using snap ring pliers, install a new snap ring.
(f) Coat a new teflon ring with power steering fluid.
(g) Form a teflon ring into a heart shape and install it with
hand.
(h) Using SST, form the teflon ring.
SST 09630−00014 (09631 −00121)
NOTICE:
The teflon ring must be squeezed before inserting the
cross shaft or damage will result.
(i) Coat a new oil seal with power steering fluid.
(j) Using SST, press in the oil seal to the gear housing. SST 09950−60010 (09951 −00340, 09951−00450)
09950 −70010 (09951 −07200)
NOTICE:
Make sure you install the oil seal facing the correct direc-
tion.
5. IF NECESSARY, REPLACE TEFLON RING AND O −
RING
(a) Using a screwdriver, remove the teflon ring and O −ring
from the worm gear valve body assembly.
NOTICE:
Be careful not to damage the worm gear valve body assem-
bly.
(b) Coat a new O −ring with power steering fluid and install it.
(c) Expand a new teflon ring with your fingers.
NOTICE:
Be careful not to overexpand the teflon ring.
(d) Install the teflon ring.
(e) Coat the teflon ring with power steering fluid and snug it down with piston ring compressor for 5 − 7 minutes.
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SR16P−01
−
STEERING POWER STEERING GEAR
SR−41
1996 LAND CRUISER (RM451U)
REASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. COAT WITH MOLYBDENUM DISULFIDE LITHIUM
BASE GREASE (See page SR−33 )
2. INSTALL WORM GEAR VALVE BODY ASSEMBLY
(a) Coat 2 new O−rings with power steering fluid and install them to the gear housing.
(b) Secure the gear housing on SST and clamp SST in vise. SST 09630−00014 (09631 −00142)
(c) Install the valve body assembly while supporting the worm gear with your fingers so that it does not rotate.
(d) Torque the 4 bolts. Torque: 61 N·m (620 kgf·cm, 45 ft·lbf)
NOTICE:
Be careful not to damage the teflon ring.
(e) Using SST and a torque wrench, check the valve body as-
sembly rotating torque.
SST 09616−00010
Rotating torque:
0.3 − 0.5 N·m (3 − 5.5 kgf·cm, 2.6 − 4.8 in.·lbf)
HINT:
Hold the worm gear to prevent it from turning.
If rotating torque is not correct, replace the worm gear valve
body assembly.
3. INSTALL POWER PISTON PLUNGER GUIDE, POWER
PISTON PLUNGER, COMPRESSION SPRING AND
POWER PISTON PLUNGER GUIDE NUT
(a) Coat a new O−ring with power steering fluid.
(b) Install the O−ring to the plunger guide nut and install the plunger guide nut with a hexagon wrench (10 mm).
Torque: 20 N·m (205 kgf·cm, 15 ft·lbf)
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SR−42
−
STEERING POWER STEERING GEAR
1996 LAND CRUISER (RM451U)
4. DETERMINE CENTER POSITION
(a) Using SST, turn the worm gear valve body shaft so full
lock in both directions and determine the exact center.
SST 09616−00010
(b) Place matchmarks on the worm gear valve body shaft and
worm gear valve body housing to show neutral position.
5. INSTALL CROSS SHAFT AND SIDE COVER
(a) Coat a new O −ring with power steering fluid and install it
on the side cover.
(b) Assemble the cross shaft to the side cover.
HINT:
Fully loosen the cross shaft adjusting screw.
(c) Install and push the cross shaft into the gear housing so that the center teeth mesh together.
(d) Torque the 4 bolts in a diagonal pattern. Torque: 61 N·m (620 kgf·cm, 45 ft·lbf)
6. ADJUST TOTAL PRELOAD
(a) Install SST with a torque wrench on the worm gear valve body shaft.
SST 09616−00010
(b) Turn the cross shaft adjusting screw until the preload is
within specification.
Preload (Turning):
0.74 − 10.8 N·m (7.5 − 11.0 kgf·cm, 6.5 − 9.6 in.·lbf)
7. INSTALL NEW SEAL WASHER
8. INSTALL ADJUSTING SCREW LOCK NUT
Torque the lock nut while holding the cross shaft adjusting
screw. Torque: 46 N·m (470 kgf·cm, 34 ft·lbf)
9. CHECK TOTAL PRELOAD
Using SST and a torque wrench, check total preload. SST 09616−00010
Total preload (Turning):
0.74 − 1.08 N·m (7.5 − 11.0 kgf·cm, 6.5 − 9.6 in.·lbf)
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SR16Q−01
SR2922
Alignment Marks
−
STEERING POWER STEERING GEAR
SR−43
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL PS GEAR ASSEMBLY
Torque the 4 installation bolts and nuts.
Torque: 142 N·m (1,450 kgf·cm, 105 ft·lbf)
2. CONNECT SLIDING YOKE SUB−ASSEMBLY (See page SR−19 )
3. CONNECT PRESSURE FEED AND RETURN TUBES
Using SST, connect the pressure feed and return tubes. SST 09631−22020
Torque: 36 N·m (365 kgf·cm, 26 ft·lbf)
HINT:
Use a torque wrench with a fulcrum length of 300 mm
(11.81 in.).
This torque value is effective in case that SST is parallel
to a torque wrench.
4. CONNECT PITMAN ARM WITH RELAY ROD
(a) Align the alignment marks on the cross shaft and pitman arm and connect the pitman arm.
(b) Install the spring washer and pitman arm set nut. Torque: 177 N·m (1,800 kgf·cm, 130 ft·lbf)
5. POSITION FRONT WHEELS FACING STRAIGHT AHEAD
HINT:
Do it with the front of the vehicle jacked up.
6. CENTER SPIRAL CABLE (See page SR−19 )
7. INSTALL STEERING WHEEL
(a) Align the matchmarks on the wheel and steering column main shaft.
(b) Temporarily tighten the wheel set nut.
(c) Connect the connector.
8. BLEED POWER STEERING SYSTEM
(See page SR−3 )
9. CHECK STEERING WHEEL CENTER POINT
10. TORQUE STEERING WHEEL SET NUT
Torque: 34 N·m (350 kgf·cm, 25 ft·lbf)
11. INSTALL STEERING WHEEL PAD (See page SR−19)
12. CHECK FRONT WHEEL ALIGNMENT (See page SR−4 )
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SR16S−03
SR4102
SST
SR4103
SST
SR4104
SST
−
STEERING STEERING LINKAGE
SR−45
1996 LAND CRUISER (RM451U)
REMOVAL
NOTICE:
When using a vise, do not overtighten it.
1. REMOVE ENGINE UNDER COVER
Remove the 4 bolts.
2. REMOVE PITMAN ARM
(a) Remove the cotter pin and nut.
(b) Using SST, disconnect the pitman arm from the relay rod
assembly.
SST 09611 −22012
(c) Remove the pitman arm set nut and spring washer.
(d) Using SST, disconnect the pitman arm from the PS gear assembly.
SST 09628−62011
3. REMOVE STEERING DAMPER WITH STEERING DAMPER BRACKET
(a) Remove the nut and 2 damper bracket set bolts.
(b) Using SST, disconnect the damper with damper bracket from the relay rod assembly.
SST 09611 −22012
4. REMOVE STEERING DAMPER
(a) Secure the damper bracket in a vise.
(b) Remove the nut.
(c) Using SST, r emove the damper from the damper bracket.
SST 09610−55012
5. REMOVE RELAY ROD ASSEMBLY
(a) Remove the cotter pin and nut.
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SR4106
SST
SR−46
−
STEERING STEERING LINKAGE
1996 LAND CRUISER (RM451U)
(b) Using SST, disconnect the relay rod assembly from the
knuckle arm.
SST 09611 −22012
6. REMOVE TIE ROD ASSEMBLY
(a) Remove the 2 cotter pins and nuts.
(b) Using SST, disconnect the tie rod assembly from the RH and LH knuckle arms.
SST 09611 −22012
7. REMOVE TIE ROD ENDS AND RELAY ROD ENDS
Loosen the tie rod end or relay rod end clamp and remove the
tie rod end or relay rod end.
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