TM-9-2320-366-20-5 MTV Unit Maintenance Manual M1083 Series - Volume 5 Download

Page 302 of 1158

TM 9-2320-366-20-5 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 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