TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311 -20-1 4-5 POWERPLANT — CONTINUED f. Installation — Continued 40 41 42 NOTE Position of rubber-coated clamp is same for both M109A2 and M109A3 Howitzers. Connect engine-to-lower fuel tank return hose (47) at quick disconnect assembly (48). Install washer (50) and screw (49) at rubber-coated clamp (51). Protective fan screens must be installed prior to doing maintenance in engine compartment when engine is running or when engine is in ground hop mode. Contact with rotating fan can cause injury. Install two protective fan screens on radiator fans (153) with thumbscrews and nuts. 4-56 WARNING