TM-9-2815-237-34 HMMWV Engine Direct Support & General Support Maintenance Manual Download
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TM 9-2815-237-34 2-90 Change 2 2-32. FUEL INJECTION PUMP REPAIR (Cont'd) 24. Using 5/32-in. hex head driver, remove transfer pump end cap socket-head locking screw (5), plate (4), rubber washer (2), and flat washer (3) from hydraulic head (20). Discard washer (2). 25. Remove inlet tube assembly (8) from fuel pump end cap (9). 26. Using end cap wrench, remove fuel pump end cap (9) from hydraulic head (20). 27. Remove regulator (17) from fuel pump end cap (9). NOTE Early production injection pumps have an inlet filter screen, retaining ring, and seal or pressure plate. Late production pumps have a different configuration screen which does not require a retaining ring and seal or pressure plate. When repairing early production pumps, replace the screen with a late production one. 28. Remove inlet filter screen (11) and pressure plate (10), if applicable, from regulator (17). 29. Remove retaining ring (12) and screen (11) from pressure plate (10), if applicable. 30. Remove inlet filter screen seal (16), end plate adjusting plug (13), spring (14), and piston (15) from regulator (17). Discard adjusting plug (13) and seal (16). Tag spring (14) and piston (15) for assembly. 31. Remove transfer pump liner (7), four blades (18), and two springs (6). 32. Remove head-locking capscrews (1) and (21) from housing (22). HOLDING FIXTURE END CAP WRENCH EARLY PRODUCTION LATE PRODUCTION 1 2 3 4 5 6 7 18 19 20 21 22 17 16 15 14 12 11 10 9 9 8 13 17 15 14 11 13