Subaru Legacy 2004 Service Manual page 3330

POWER ASSISTED SYSTEM (POWER STEERING)
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 inside of gearbox for water. If any water is found, carefully check boot for
damage, input shaft dust seal, adjusting screw and boot clips for poor sealing. If faulty, replace with new
parts.
No. Parts
1 Input shaft
2 Dust seal
3 Rack & Pinion
4 Gearbox unit
5 Boot
6 Tie-rod
7 Tie-rod end
Adjusting screw
8
spring
9 Boot clip
10 Sleeve
11 Pipes
Steering Gearbox [RHD Model]
INSPECTION
(1) Bend of input shaft
(2) Damage on serration
(1) Crack or damage
(2) Wear
Poor mating of rack with pinion
(1) Bend of rack shaft
(2) Bend of cylinder portion
(3) Crack or damage on cast iron
portion
(4) Wear or damage on rack bush
(5) Wear on input shaft bearing
Crack, damage or deterioration
(1) Looseness of ball joint
(2) Bend of tie-rod
Damage or deterioration on dust
seal
Deterioration
Deterioration
Damage
(1) Damage to flared surface
(2) Damage to flare nut
(3) Damage to pipe
PS-60
Corrective action
If the bend or damage is excessive, replace the entire
gearbox.
If the outer wall slips, the lip is worn out or damage is
found, replace it with a new one.
(1) Adjust the backlash properly.
By measuring turning torque of gearbox and sliding resis-
tance of rack, check if rack & pinion engage uniformly and
smoothly with each other. (Refer to "Service limit".)
(2) Keeping 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.
Replace the gearbox with a new one.
If the free play of rack shaft in radial direction is out of the
specified range, replace the gearbox with new one. (Refer
to "Service limit".)
If the free play of rack shaft in radial and axial direction is
out of the specified range, replace the gearbox with a new
one. (Refer to "Service limit".)
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.