TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 Section 6-38. TURBOCHARGER REPAIR This task covers: a. Disassembly d. Assembly IV. COMPONENT REPAIR b. Cleaning c. Inspection INITIAL SETUP MODELS 7083-7398 7083-7399 TOOLS AND SPECIAL TOOLS General mechanics tool kit (App B, Item 96) Torque wrench (App B, Item 101) Magnetic base dial indicator (App B, Item 45) Turbocharger holding fixture (App D, Item 8) Micrometer depth gage (App B, Item 23) Sleeve (App D, Item 12) Back plate torquing tool (App D, Item 9) Torque wrench, (App B, Item 100) MANDATORY REPLACEMENT PARTS EXPENDABLE/DURABLE SUPPLIES Engine oil (App C, Item 16) Cleaning solvent (App C, Item 10) Crocus cloth (App C, Item 12) Silicone carbide cloth (App C, Item 41) Silicone lubricant (App C, Item 42) Sealing compound (App C, Item 40) Sealant (App C, Item 39) EQUIPMENT CONDITION Para Description 6-2 Turbocharger removed Lockwashers (App F, Item 93) Gasket (App F, Item 21 ) Gasket (App F, Item 60) Locking plates (App F, Item 111) Gaskets (App F, Item 20) Locking plates (App F, Item 11O) Piston ring (App F, Item 128) Seal ring (App F, Item 139) Gasket (App F, Item 76) Bearings (App F, Item 1) Snap ring (App F, Item 143) Locking nut (App F, Item 187) a. Disassembly (1) Remove oil inlet elbow (1) from cover plate(2). (2) Remove two bolts (3) and two Iockwashers (4) securing cover plate (2) to turbocharger assembly (5). Remove cover plate and gasket (6). Discard gasket and Iockwashers. (3) Remove two bolts (7) and two Iockwashers (8) securing oil drain tube (9) to turbocharger assembly (5). Remove drain tube and gasket (10). Discard Iockwashers and gasket. CAUTION Do not nick compressor and turbine wheels when removing compressor and turbine housings. These wheels are highly balanced and can become unbalanced by small nicks. 6-44 Change 1