TM-9-2320-365-20-4 LMTV Unit Maintenance Manual M1078 Series - Volume 4 Download
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TM 9-2320-365-20-4 19-3. AIR/HYDRAULIC POWER UNIT AND BRACKET REPLACEMENT/REPAIR (CONT) (13) Install two preformed packings (25) on piston (22). (14) Position piston (22) in air cylinder (26). (15) Position preformed packing (27) and spring (28) in cover (29) with screw (30). (16) Tighten screw (30) to 12-18 lb-in. (1-2 N·m). WARNING Use care when installing screws, pump is under spring tension. Failure to comply may result in injury to personnel. NOTE Locate groove in air cylinder assembly on upper half of pump assembly with chambered end toward rear head. (17) Install bumper (31), washer (32), and spring (33) on guide (34). (18) Position spring (33), air cylinder (26), and cover (29) on pump (6) with four screws (35). (19) Tighten four screws (35) to 85-95 lb-in. (10-11 N·m) in sequence shown. 19-8.6 Change 1