Repair -706880845

TM 5-4210-233-14&P-1

5-26. POWER STEERING PUMP - Continued

b. Inspection.

(1) Inspect hoses 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 thoroughly and inspect for damage including stripped threads. Replace as

required.

Repair.

(1) Control Valve Repair.

CAUTION

Do not repair control valve (4). If faulty, the control valve must

be replaced. Valve malfunction and potential pump destruction

may occur if disassembly is attempted.

NOTE

Control valve may be replaced without removing steering pump

from truck.

(a) Remove two plugs (2) and spring (3).

(b) Insert a suitable tool through the bore where plugs (2) are removed and push control valve (5) out of

valve cover.

NOTE

Retaining ring (6) can remain in flow control cover unless it is

damaged. If removed, be careful not to scratch valve bore.

attempt to repair.

NOTE

During handling and shipping of new control valve, burrs may be

raised on sharp edges. Be sure to remove these burrs before

installing valve.

(d) Coat the new control valve (4) with lubricating oil (item 10, Appendix E) and install it in the cover, small

land first.

(e) Check that valve slides smoothly in the valve bore and install spring (3).

(f) Apply pipe sealant (Item 2, Appendix E) to plugs (2) and install plugs in flow control cover.

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