TM 5-3805-258-24-2
Vehicle Systems
Disassembly and Assembly
Supplemental Steering Pump
Remove Supplemental Steering Pump
1. Disconnect oil lines (1 and 2) from
steering pump (3).
2. Fasten a suitable lifting device (not
shown) to the steering pump. Remove two
nuts and washers (4), and remove
supplemental steering pump (3). The weight
is approximately 65 lb. (29 kg).
3. Remove O-ring seal (5).
4. Remove bolt, lock, and washer (6).
5. Remove gear (7).
Install Supplemental Steering Pump
1. Install gear (7), and bolt, lock, and washer
(6).
2. Tighten bolt securely, then bend tab of
lock to retain bolt.
3. Attach a suitable lifting device (not
shown) to the supplemental steering pump
(3) and lift pump into position.
4. Install two nuts and washers (4) and
tighten securely.
5. Connect oil lines (1 and 2) to pump (3).
Disassemble Supplemental Steering Pump
START BY:
a) remove supplemental steering pump
1. Clean the outside of the pump before it is
disassembled.
NOTE: Put identification on all parts for cor-
rect position at assembly.
2. Remove eight bolts (1) and washers (2),
and flange (3) from the pump housing.
3. Remove O-ring seal (4) from flange (3).
4. Remove O-ring seals (5) and backup rings
(6) from support rings in the flange.
5. Remove two lip type seals (7A and 7B)
and the spacer ring (8) from the flange.
6. Remove isolation plates (9) and retainer
assembly (10) from the pump housing (23).
7. Remove pressure plate (11) from the
pump housing (23).
8. Remove drive gear (12) and
from the pump housing (23).
9. Remove bushings (14) from
(12 and 13).
idler gear (13)
both gears
10. Remove pressure plate (15) from the
pump housing (23).
11. Remove isolation plates (16) and retainer
assembly (17) from the pump housing (23),
with a seal pick.
12. Remove O-ring seals (18) and the
backup rings (19) from the pump housing
(23).
13. Turn the pump housing (23) over and
remove plug (20) to clean the pump housing.
14. Remove O-ring (21) from plug (20).
15. Inspect dowel pins (22) for damage.
Remove and replace if necessary.
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