TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 4-14. TACHOMETER DRIVE REPLACEMENT This task covers: a. Removal b. inspection c. -Installation INITIAL SETUP MODELS MANDATORY REPLACEMENT PARTS All 1 Gasket (App F, Item 75) EXPENDABLE/DURABLE SUPPLIES TOOLS AND SPECIAL TOOLS Engine oil (App C, Item 16) General mechanics tool kit (App B,Item 96) a. Removal (1) Unscrew tachometer drive adapter (1) from adapter fitting (2). Remove key (3). (2) Unscrew adapter fitting (2) from rear blower cover and remove gasket (4). Discard gasket. b. Inspection c. (1) (2) Inspect key for damage or wear. Inspect tachometer drive adapter for damage or cracks. NOTE Check for free movement of internal shafts in tachometer drive adapter. Installation (1) Install adapter fitting (2) with gasket (4) to rear blower cover. (2) Install key (3) to shaft assembly. (3) Screw tachometer drive adapter (1) onto adapter fitting (2). Tighten securely. END OF TASK 4-48 Change 1