TM 9-2320-361-34 15-12. DELlVERY PUMP REPAIR THIS TASK COVERS: a. Disassembly c. Inspection b. Cleaning d. Assembly INITIAL SETUP APPLICABLE MODELS REFERENCES (TM) M49A2C, M50A2, and M50A3 LO 9-2320-209-12-1 TOOLS TM 9-214 General mechanic’s tool kit TM 9-2320-361-20 (Appendix B, Item 1) TM 9-2320-361-34P Snapring pliers (Appendix B, Item 40) EQUIPMENT CONDITION MATERIALS/PARTS ● Delivery pump drain cock removed, if installed Two O-ring seals (Appendix F, Item 177) (TM 9-2320-361-20). Two snaprings (Appendix F, Item 263) ● Delivery pump removed (TM 9-2320-361-20). Five seals (Appendix F, Item 233) ● Strainer element removed (TM 9-2320-361-20). Two gaskets (Appendix F, Item 54) SPECIAL ENVIRONMENTAL CONDITIONS Gasket (Appendix F, Item 43) Gasket (Appendix F, Item 44) Work area must be clean and free from blowing dirt and dust. Gasket (Appendix F, Item 53) Thirty-two lockwashers (Appendix F, Item 146) GAA grease (Appendix C, Item 8) Rag (Appendix C, Item 16) I a. Disassembly 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 15-48 Remove four screws (3), lockwashers (2), strainer body (1), and gasket (46) from pump body (40). Discard lockwashers (2) and gasket (46). Remove valve cap (7) and gasket (6) from setscrew (5). Discard gasket (6). Place a locator mark on setscrew (5) threads where threads meet cover (4). Remove setscrew (5). Remove four screws (8), lockwashers (9), cover (4), and gasket (10) from pump body (40). Discard lockwashers (9) and gasket (10). Remove spring guide (11), spring (12), and bypass valve (13) from pump body (40). Remove grease fittings (23) and (32) and fittings (25) and (31) from covers (24) and (30). Remove four screws (26), Lockwashers (27), cover (24), and gasket (22) from pump head (16). Discard lockwashers (27) and gasket (22). NOTE Liner pins may stay with pump heads or liner during removal of pump heads. Remove eight screws (15), lockwashers (14), pump head (16), and O-ring seal (41) from pump body (40). Discard lockwashers (14) and O-ring seal (41). Remove four screws (33), lockwashers (34), cover (30), and gasket (28) from pump head (43). Discard lockwashers (34) and gasket (28). Remove eight screws (44), lockwashers (45), pump head (43), and O-ring seal (42) from pump body (40). Discard lockwashers (45) and O-ring seal (42). Remove seal (29) from cover (30). Discard seal (29).