TM 5-3805-258-24-2Vehicle SystemsDisassembly and AssemblySupplemental Steering PumpRemove Supplemental Steering Pump1. Disconnect oil lines (1 and 2) fromsteering pump (3).2. Fasten a suitable lifting device (notshown) to the steering pump. Remove twonuts and washers (4), and removesupplemental steering pump (3). The weightis 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 Pump1. Install gear (7), and bolt, lock, and washer(6).2. Tighten bolt securely, then bend tab oflock to retain bolt.3. Attach a suitable lifting device (notshown) to the supplemental steering pump(3) and lift pump into position.4. Install two nuts and washers (4) andtighten securely.5. Connect oil lines (1 and 2) to pump (3).Disassemble Supplemental Steering PumpSTART BY:a) remove supplemental steering pump1. Clean the outside of the pump before it isdisassembled.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 retainerassembly (10) from the pump housing (23).7. Remove pressure plate (11) from thepump housing (23).8. Remove drive gear (12) andfrom the pump housing (23).9. Remove bushings (14) from(12 and 13).idler gear (13)both gears10. Remove pressure plate (15) from thepump housing (23).11. Remove isolation plates (16) and retainerassembly (17) from the pump housing (23),with a seal pick.12. Remove O-ring seals (18) and thebackup rings (19) from the pump housing(23).13. Turn the pump housing (23) over andremove 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.5-394
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