Page 1-36
TRW TAS STEERING GEAR
DocID
STEERING
GROUP 0603-V-003-0207
File Last Modified: September 17, 2012 10:18 am
35
Assemble ball re-
turn guide halves
11.
Assemble the ball return guide halves (33) into the rack piston
until seated, rotate the input shaft slightly if necessary.
If a new rack piston (35) or a new
input shaft, valve, worm subassem-
bly (19) is being assembled, the balls (34) removed from
the unit must be discarded and a service ball kit uti-
lized. The balls in a service ball kit are sized to function
in the ball track guide path as altered by component
replacement.
Do not seat guides with a hammer.
Damage to guides can result in
subsequent lockup or loss of steering.
Use the correct quantity of service
balls: TAS40-29, TAS55-31, TAS65-
32, TAS66-32 TAS85-34, when using the service ball kit.
Position rack pis-
ton in housing
Insert worm and
valve assembly
into rack piston
All Thread
TAS40-66
1
⁄
2
"
-20 x 7"
TAS85
9
⁄
16
"
-14 x 7"
9.
Apply clean oil to housing cylinder bore. Place the rack piston in
the housing piston bore with ball return guide holes facing up.
10.
Insert the worm screw into the rack piston close to maximum
depth, without the valve housing making contact with the
poppet stem.
Insert two All threads through valve housing bolt holes and
tighten into housing to support the worm screw. (Note the size
of all threads required for the gear being serviced.)
Line up rack piston ball guide holes with the worm ball track
grooves by rotating the input shaft.
Install rack piston
o-ring and seal
ring
8.
Install a new backup o-ring (28) and then a new Teflon seal ring
(27) on rack piston (35). Do not over-stretch these rings as you
install them. Do not allow the Teflon seal ring to be twisted.
Содержание TA S40 Series
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