Gear Housing Inspection And Replacement - Toyota Hilux Surf 1993 Owner's Manual

SR–70
STEERING – Power Steering (Gear Housing)
INSPECTION AND REPLACEMENT OF GEAR
HOUSING
1. CHECK BALL CLEARANCE
(a) Mount the valve body in a vise.
(b) Using a dial indicator, check the ball clearance.
Move the worm gear up and down.
Maximum ball clearance: 0.15 mm (0.0059 in.)
If clearance is excessive, the power control valve assem–
bly must be replaced.
2. INSPECT CROSS SHAFT ADJUSTING SCREW THRUST
CLEARANCE
(a) Clamp the cross shaft in a vise.
(b) Using a dial indicator, measure the thrust clearance.
Thrust clearance: 0.03 – 0.05 mm
(0.0012 – 0.0020 in.)
If thrust clearance is not correct, adjust the thrust clear–
ance.
3. IF NECESSARY, ADJUST THRUST CLEARANCE
(a) Using a chisel and hammer, remove the lock nut
stake.
(b) Using SST, remove the lock nut.
SST 09630–00012 (09631–00050)
(c) Adjust the adjusting screw for correct thrust clear–
ance and tighten a new lock nut.
(d) Stake the lock nut.
4. REPLACE NEEDLE ROLLER BEARINGS
(a) Using a screwdriver, pry out the oil seal.
(b) Using snap ring pliers, remove the snap ring.
(c) Remove the metal spacer, teflon ring and 0–ring.