GROUP 0603-V-003-0207
STEERING
7
DocID
TRW TAS STEERING GEAR
Page 1-33
Review Draft
32
Inspect housing
faces
Inspect side cover
bushing/bearing
Inspect sector
shaft assembly
5.
Inspect the housing faces for nicks that would prevent proper
sealing. Replace the gear housing if these nicks are present
and cannot be easily removed with a fine-tooth flat file without
changing the dimensional characteristics.
6.
Bushing Cover:
Inspect side cover bushing/bearing for
damage. Also check side cover bushing to sector shaft
clearance. If damage exists, or if clearance exceeds .008" (0.20
mm) replace side cover bushing/bearing assembly.
Bearing Cover:
Inspect roller bearing in side cover assembly
(44) for brinelling or spalling. If either condition exists, replace
the side cover assembly.
7.
Inspect the sector shaft (41) bearing and sealing areas and
sector teeth contact surfaces for brinelling, spalling or cracks.
Run your fingernail edge across these areas to detect steps.
Remove masking tape from the shaft and inspect for twisted or
otherwise damaged serrations. If any of these conditions exist,
replace the sector shaft.
A service sector shaft will
come assembled with the adjusting
screw and retainer.
Inspect input
shaft, valve/worm
assembly sealing
areas
Inspect housing
cylinder bore
3.
Inspect the sealing area of input shaft (19) and valve housing
(10) for nicks, and damage. Inspect for discoloration from
excessive heat. Inspect input shaft ball-track grooves for
brinelling or spalling. If any of these conditions exist, replace
the input shaft, valve worm assembly, valve housing and balls.
Also replace rack piston if brinelling or spalling is found.
4.
Inspect the housing (36) cylinder bore. Some scoring marks are
normal. If there was internal leakage greater than 1 GPM, make
sure there are no damaged seals before replacing the housing.
BEARING
BUSHING
Summary of Contents for TA S40 Series
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