torque LEXUS SC400 1991 Service Repair Manual

9. SELECT 2 PAWL STOPPERS
(a) With the tilt pawl and ratchet engaged, install the 2 pawlstoppers.
(b) Check that the alignment marks on the stopper and pawl
align when the stopper is lightly rotated to the pawl side.
(c) If the alignment marks do not align, select pawl stoppers according to the following table.
 

Tilt lever side
 

Tilt sub lever side
 

Dimension ªAº
mm (in.)
 

1
 

A
 

12.68 ± 12.74
(0.4992 ± 0.5016)
 

2
 

B
 

12.61±12.67
(0.4965 ± 0.4988)
 

3
 

C
 

12.54 ± 12.60
(0.4937 ± 0.4961)
 

4
 

D
 

12.47 ± 12.53
(0.4909± 0.4933)
 

5
 

E
 

12.40 ± 12.46
(0.4882 ± 0.4906)
 

6
 

F
 

12.33 ± 12.39
(0.4854 ± 0.4878)
 

7
 

G
 

12.26 ± 12.32
(0.4827 ± 0.4850)
(d) After selecting the stoppers, check that on both sides the
pawl and ratchet are fully engaged.
10. I N S TA L L 2 PAW L S TO PPERS AND 2 TILT LEVER
RETAINERS
(a) Install the tilt sub lever side pawl stopper and retainer.
(b) Install the spacer and new E±ring.
(c) Install the nut to the tilt steering bolt.
Torque: 15 N Vm (150 kgf Vcm, 11 ft Vlbf)
(d) Install the collar to the tilt memory bolt.
(e) Install the nut to the tilt memory bolt.
Torque: 5.9 N Vm (60 kgf Vcm, 52 in. Vlbf)
(f) Install the tilt lever side pawl stopper and tilt lever retainer.
(g) Install the E±ring.
(h) Install and torque the nut.
Torque: 15 N Vm (150 kgf Vcm, 11 ft Vlbf)
SR±22±
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11. INSTALL BOLT
(a) Tighten the nut with the matchmarks on the pawl and collarare aligned.
Torque: 5.9 N Vm (60 kgf Vcm, 52 in. Vlbf)
(b) Check that the pawls rotate smoothly.
12. INSTALL 3 TENSION SPRINGS
13. INSTALL COMPRESSION SPRING
(a) Install the 2 bushings to the spring.
(b) Install the spring and bolt.
(c) Using a torx wrench, tighten the bolt.
Torx wrench: T30 (Part No. 09042±00010 or locally manufac-
tured tool)
Torque: 7.8 N Vm (80 kgf Vcm, 69 in. Vlbf)
14. INSTALL 2 LOCK WEDGES TO BREAKAWAY BRACKET
NOTICE: Make sure that no grease gets on the contact
surface between the lock wedge and the lower column
tube.
15. INSTALL BREAKAWAY BRACKET
(a) Install the steering shaft thrust stopper.
(b) Install the breakaway bracket to the main shaft. Be careful that the spline part of the main shaft does not sep-
arate.
±
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(c) Using snap ring pliers, install the snap ring to the main shaft.
(d) Install the steering column tube stopper bolt.
Torque: 19 NVm (195 kgf Vcm, 14 ft Vlbf)
16. INSTALL TELESCOPIC LEVER LOCK BOLT
(a) Pull the steering column tube away from the breakaway
bracket and facing the body installation surface of the
breakaway bracket upward, temporarily install the lock bolt.
(b) Install a double nut on the lock bolt. Torque to 16 N Vm (160 kgf Vcm, 12 ft Vlbf), loosen once, then
torque again to 7.4 N Vm (75 kgf Vcm, 65 in. Vlbf).
17. INSTALL TELESCOPIC LEVER
(a) Install the compression spring and ball.
(b) Install the washer, lever, collar and bolt.
Torque: 25 N Vm (260 kgf Vcm, 19 ft Vlbf)
18. I N S TA L L T E L E S C O P I C L EVER SERRATION
ATTACHMENT
(a) Rotate the telescopic lever until it touches the breakaway
bracket.
(b) Install the serration attachment so that the alignment marks on the telescopic lever and the serration attachment align.
Torque: 13 N Vm (130 kgf Vcm, 9 ft Vlbf)
SR±24±
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19. INSTALL CONNECTOR BRACKET
Torque: 4.9 NVm (50 kgf Vcm, 43 in. Vlbf)
20. INSTALL PROTECTOR
21. INSTALL TURN SIGNAL BRACKET
Install the turn signal bracket so that its upper surface is par-
allel with upper surface of the capsule of the breakaway
bracket.
22. INSTALL UPPER BRACKET
(a) Install the upper bracket with 2 new tapered±head bolts.
(b) Tighten the 2 tapered±head bolts until the bolt heads break off.
23. INSTALL LOWER DUST COVER
(a) Using a press, install the dust seal.
±
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(b) Install the lower dust cover and clip.
24. INSTALL SLIDING YOKEAlign matchmarks and install the sliding yoke to the main
shaft.
Torque: 35 N Vm (360 kgf Vcm, 26 ft Vlbf)
25. INSTALL IGNITION KEY CYLINDER ILLUMINATION
26. CHECK TILT OPERATION
(a) Check that there is not axial play at the end of the main shaft.
(b) With the main shaft in the neutral position, push the tilt lever and check that the main shaft rises to the uppermost position.
(c) Lower the main shaft, and check that it locks in the uppermost position.
27. CHECK TELESCOPIC OPERATION
(a) Check that t here is no axial play when the lever is turned fully
counterclockwise.
(b) Check that the main shaft moves smoothly when the lever is turned clockwise.
SR±26
±
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2. IF NECESSARY, REPLACE KEY CYLINDER
(a) Place the ignition key at the ACC position.
(b) Push down the stop pin with a thin rod, and pull out the keycylinder.
(d) Install a new key cylinder. HINT: Make sure the ignition key is at the ACC position.
3. INSPECT UPPER BEARING Check the upper bearing rotation condition and check for ab-
normal noise.
If the bearing is worn or damaged, replace the column upper
tube.
4. IF NECESSARY, ADJUST TELESCOPIC ADJUSTING SCREWS
(a) Using SST, remove the lock nuts.
SST 09617±14010
(b) Using SST, tighten the adjusting screws. SST 09923±00010
Torque: 6.9 N Vm (70 kgf Vcm, 64 in. Vlbf)
NOTICE:
w If the adjusting screw is tightened higher than the
specified torque, the telescopic mechanism may
malfunction. Conversely, if the torque applied is too low,
rattling may develop in the column, so the specified
torque should always be applied.
w When the adjusting screw and conical springs have been
removed, replace the conical springs facing in the
direction shown in the illustration.
±
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(c) Using SST, install the lock nuts.SST 09617±14010, 09923±00010
Torque: 31 N Vm (320 kgf Vcm, 23 ft Vlbf)
HINT: Use a torque wrench with a fulcrum length of 340 mm
(13.39 in.).
STEERING COLUMN ASSEMBLY
SR0EN±03
1. APPLY MOLYBDENUM DISULPHIDE LITHIUM BASE
GREASE
(See page SR±27)
2. INSTALL MAIN SHAFT
(a) Install the bearing, thrust collar and spring to the main shaft.
(b) Install the main shaft into the upper tube.
(c) Using SST to compress the compression spring. SST 09950±20017 (09956±00010)
(d) Using snap ring pliers, install a new snap ring.
3. INSTALL TILT STEERING HOUSING SUPPORT
Torque: 13 N Vm (130 kgf Vcm, 9 ft Vlbf)
4. INSTALL COLUMN UPPER TUBE WITH MAIN SHAFT
(a) Install the upper tube and main shaft into the lower tube.
SR±34
±
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(b) Using snap ring pliers, install the snap ring to the main shaft.
(c) Using a vise, press in the 2 tilt steering shafts.HINT: Make sure the upper tube turns smoothly.
5. INSTALL TILT STEERING GEAR ASSEMBLY WITH MOTOR
(a) Install the 2 bushings and support stopper bolts.
(b) Using a vise, press in the 2 No. 2 tilt steering shafts.
(c) Install the bushing, spring and spacer to each stopper bolt.
(d) Install the bond cable.
(e) Install and torque 2 new lock nuts.
Torque: 2.9 N Vm (30 kgf Vcm, 26 in. Vlbf)
±
STEERING STEERING COLUMNSR±35
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6. INSTALL UPPER BRACKET
(a) Install the upper bracket with 2 new tapered±head bolts.
(b) Tighten the tapered±head bolts until the bolt heads break off.
7. INSTALL CONNECTOR BRACKET
Torque: 4.9 N Vm (50 kgf Vcm, 43 in. Vlbf)
8. INSTALL NO. 1 PROTECTOR AND NO. 2 PROTECTOR
9. INSTALL TURN SIGNAL BRACKET
Install the turn signal bracket so that its upper surface is par-
allel with upper surface of the capsule of the breakaway
bracket.
10. INSTALL TILT AND TELESCOPIC POSITION SENSORS
SR±36
±
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11. INSTALL TELESCOPIC SENSOR PLATE
Torque: 4.9 NVm (50 kgf Vcm, 43 in. Vlbf)
12. INSTALL LOWER DUST COVER
(a) Using a press, install the dust seal.
(b) Install the lower dust cover and clip.
13. INSTALL SLIDING YOKE
Align matchmarks and install the sliding yoke to the main
shaft.
Torque: 35 N Vm (360 kgf Vcm, 26 ft Vlbf)
14. INSTALL IGNITION KEY CYLINDER ILLUMINATION
±
STEERING STEERING COLUMNSR±37
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