TM-9-2815-210-34-2-2 LDS-465-1/LDS-465-2 Multifuel Engine Maintenance Manual Part 2
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TM 9-2815-210-34-2-2 FRAME 3 1. 2. CAUTION Pressure relief valve threaded cap (2) or retaining pin (7) are under spring tension. Be very careful when taking them out or parts inside oil pump (1) will be lost. NOTE Two types of oil pump (1) have been used on these engines. Early model pump uses a threaded cap (2) to hold pressure relief valve spring (4) and plunger (5) inside pump. Late model pump uses a retaining pin (7) and either a washer (8), or one or two types of spring retainer (9) to hold pressure relief valve spring (4) and plunger (5) inside pump. Shims (6) are used to set pressure relief valve. Num- ber of shims inside pressure relief valve will be different on different pumps (1). Some pumps have no shims. On early model pumps (1), unscrew and take out threaded cap (2). If there is a copper gasket (3) under threaded cap, take it out and throw it away. Take out pressure relief valve spring (4), plunger (5), and shims (6). Tag shims so same number of shims will be put back. On late model pumps (1) take out retaining pin. (7), washer (8) or spring retainer (9), plunger (5), pressure relief valve spring (4), and shims (6). If pump has a washer instead of spring retainer, throw away washer. Tag shims so the same number of shims will be put back. IF WORKING ON ANY ENGINE EXCEPT LDS-465-2, GO TO FRAME 4. IF WORKING ON ENGINE LDS-465-2, GO TO FRAME 5 4-153