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TM 5-4210-220-12
4-25. STEERING SYSTEM - Continued
(6)
Remove capscrews (11) and remove pump from engine bracket.
(7)
Remove fittings (12) from pump if new pump is to be installed. Plug or cover the ports to prevent
contamination of the pump.
INSPECTION
(1)
Inspect hoses, belts, and pump body. Damaged or deteriorating parts must be replaced.
(2)
Inspect reusable hardware items with stripped or damaged threads must be replaced.
(3)
Clean pump fittings (12) thoroughly and inspect for damage including stripped threads. Replace as
required.
INSTALLATION
(1)
Apply pipe sealant (item 22, Appendix E) to fittings (12). Remove protective plugs from pump ports and
install fittings.
(2)
Apply threadlock liquid (item 29, Appendix E) to capscrews (11) and install new pump (4). Tighten to 35 ft
lb (48 Nm).
(3)
Install hoses (1, 2 and 3).
(4)
Install pulley (10) and bushing (9) on pump shaft. Be sure drive key is installed on pump shaft. Install
screws and washers (8). Tighten evenly to 35 ft lb (48 Nm).
(5)
Install belts (7) and, while levering pump, tighten screws (5 and 6).
(6)
Check belt tension approximately midway between the two pulleys. A firm push with the thumb should
deflect each belt about 0.5 in. (13 mm). Adjust position of pump as necessary.
CAUTION
To prevent damage to pump vanes, be sure power steering reservoir is refilled before starting
engine.
(7)
Refill power steering reservoir with 10W/40 oil, (item 17, Appendix E). (see LO 5-4210-220-12).
(8)
Start main engine and check hose connections for leaks and, if necessary, tighten fittings.
(9)
Turn the steering wheel fully left and fully right and make sure the response to turning is smooth and easy.
(10)
Stop engine and recheck belt tension. Readjust pump position if necessary to maintain belt tension as
detailed in step 6.
4-477
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