TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311 -20-1 2-15 PROCEDURES FOR SEMIANNUAL/ANNUAL SERVICES — CONTINUED ITEM NO. 2 3 4 5 6 TABLE 2-1 UNIT PMCS FOR M109A2/M109A3/M109A4/M109A5 HOWITZERS — CONTINUED INTERVAL Semiannual Semiannual Semiannual Semiannual Semiannual ITEM TO BE INSPECTED Starter Engine Steering Control Brakes Fuel System PROCEDURE While starting engine, listen for unusual noises and difficult cranking at starter. Listen for unusual noises, hesitations, and varying idle speed. Move steering wheel through its entire range and observe if steering response is satisfactory. With vehicle operating at 15 to 20 mph (24 to 32 km/h) and steering wheel centered, observe if steering wheel wanders or pulls to one side. Accelerate vehicle to 15 mph (24 km/h). Release accelerator pedal, and apply brakes. Vehicle should stop without pulling to one side. With vehicle stopped on an incline, and with transmission in neutral, depress brake pedal and apply parking brakes. Brakes should lock securely and hold vehicle in place. Adjust brakes, if required (para 9-10). a. Change fuel filter elements (1) (primary and secondary), personnel heater fuel filter element, and coolant heater fuel filter element (2) (para 6-6, 6-7, 11- 21, and 14-6), personnel heater fuel pump strainer element (3) and coolant heater fuel pump filter element (para 11-23 and 14-5). b. Check all fuel lines and fittings (4) for serviceability and evidence of leaks. NOT FULLY MISSION CAPABLE IF: Any unusual noise or difficult cranking. Any unusual noises, hesitation, or varying idle speed. Linkage bent, broken, or out of adjustment. Brake pedal goes to floor and will not stop vehicle a. Cracked or broken fitting and fuel lines. Any bent fuel line that would restrict or stop fuel flow. b. Any class Ill leaks. 2-26