TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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2-15 PROCEDURES FOR SEMIANNUAL/ANNUAL SERVICES — CONTINUED ITEM NO. 16 17 18 TABLE 2-1 UNIT PMCS FOR M109A2/M109A3/M109A4/M109A5 HOWITZERS — CONTINUED INTERVAL Annual Annual Annual ITEM TO BE INSPECTED Shock Absorbers Alternator Drive Coupling Starter PROCEDURE Check all shock mount nuts (26) for missing cotter pins and looseness. If shock absorber mounting retaining nuts are loose, torque to 100-140 Ib-ft (136-190 N·m). Check alternator drive coupling (27) by turning alternator fan, it should not move more than 0.125 in. (3.2 mm). If it moves more than 0.125 in. (3.2 mm), remove and inspect alternator drive coupling (para 8-2). Replace if drive coupling is cracked or broken. NOTE • Remove powerplant from the vehicle and perform a walk-around of the powerplant (para 4-5). • Check that all starter bolts and mounting hardware are properly secured. a. Check for missing or loose mounting hardware, if loose, torque to 95–105 Ib-ft (129-142 N·m). b. Check wiring harness and cables for frays, breaks, or looseness. NOT FULLY MISSION CAPABLE IF: Any missing or broken cotter pins. Any class Ill leaks. Any missing or broken shock mount bolts. More than 0.125-in. (3.2- mm) play in coupling gear drive, bolts missing from drive coupling, or cracked or broken housing. a. Any loose or missing bolts. b. Any loose or frayed wires. 2-32 TM 9-2350-311-20-1