TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
Page 124 of 670
TM9-2815-202-34 4-10. AIR BOX HEATER REPLACEMENT This task covers: a. Removal b. Disassembly c d. Assembly e. Test/Adjustment f. Cleaning/Inspection Installation INITIAL SETUP MODELS 7083-7395 7083-7396 TOOLS AND SPECIAL TOOLS General mechanics tool kit (App B, Item 96) Torque wrench (App B, Item 101) Test lead (App D, Item 1) MANDATORY REPLACEMENT PARTS 2 Lockwashers (App F, Item 90) 4 Lockwashers (App F, Item 89) 1 LockWasher (App F, Item 91 ) 2 LockWashers (App F, Item 92) 6 Lockwashers (App F, Item 93) EXPENDABLE/DURABLE SUPPLIES MANDATORY REPLACEMENT PARTS Cleaning solvent (App C, Item 10) 1 Vane set (App F, Item 159) EQUIPMENT CONDITION 1 Gasket (App F, Item 68) Para Description 4-8 Left lifting bracket removed 4-9 Crossover tubes removed AIR PUMP a. Removal (1) Disconnect hose (1) from check valve (2). (2) Disconnect hose (3) from elbow (4) on air pump (5). NOTE Only model 7083-7396 has clamp (6) on hose (3) and uses an elbow (7) instead of an adapter (7). (3) (4) (5) (6) (7) Remove screw assembly (8) and clamp (6) from governor cover. If necessary, remove adapter (7) and clamp from hose (3). Remove hose and reinstall screw assembly on cover. Remove nuts (9 and 10) securing wiring harness leads(11 and 12) to terminals (13 and 14) on air pump (5). Disconnect leads from pump. Remove bolt (15), Iockwasher (16), flat washer (17), air pump clamp (18), cushion (19), and air pump (5) from bracket (20). Discard Iockwasher. Remove hose (21 ) and check valve (2) from adapter (22). Remove hose from check valve. Remove adapter (22) from elbow (23). 4-22