
PS-60
POWER ASSISTED SYSTEM (POWER STEERING)
Steering Gearbox [RHD MODEL]
E: INSPECTION
1. BASIC INSPECTION
1) Clean all disassembled parts, and check for wear, damage, or any other faults, then repair or replace as
necessary.
2) When disassembling, check the inside of gearbox for water. If any water is found, carefully check the boot
for damage, input shaft dust seal, adjusting screw and boot clips for poor sealing. If faulty, replace with new
parts.
No. Parts Inspection Corrective action
1 Input shaft (1) Bend of input shaft
(2) Damage on serration
If the bend or damage is excessive, replace the entire
gearbox.
2 Dust seal (1) Crack or damage
(2) Wear
If the outer wall slips, lip is worn out or damage is found,
replace it with a new one.
3 Rack and pinion Poor mating of rack with pinion
(1) Adjust the backlash properly.
By measuring the turning torque of gearbox and sliding
resistance of rack, check if rack and pinion engage uni-
formly and smoothly with each other. (Refer to “Service
limit”.)
(2) Keeping the rack pulled out all the way so that all teeth
emerge, check teeth for damage.
Even if abnormality is found in either (1) or (2), replace
the entire gearbox.
4 Gearbox unit
(1) Bend of rack shaft
(2) Bend of cylinder portion
(3) Crack or damage on cast iron
portion
Replace the gearbox with a new one.
(4) Wear or damage on rack bush
If the free play of rack shaft in radial direction is out of the
specified range, replace the gearbox with a new one.
(Refer to “Service limit”.)
(5) Wear on input shaft bearing
If the free plays of input shaft in radial and axial directions
are out of the specified ranges, replace the gearbox with
a new one. (Refer to “Service limit”.)
5 Boot Crack, damage or deterioration Replace with a new one.
6 Tie-rod (1) Looseness of ball joint
(2) Bend of tie-rod Replace with a new one.
7 Tie-rod end Damage or deterioration on dust
seal Replace with a new one.
8Adjusting screw
spring Deterioration Replace with a new one.
9 Boot clip Deterioration Replace with a new one.
10 Sleeve Damage Replace with a new one.
11 Pipes
(1) Damage to flared surface
(2) Damage to flare nut
(3) Damage to pipe
Replace with a new one.