TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 8-10. IDLE SPEED ADJUSTMENT This task covers: Adjustment INITIAL SETUP MODELS EQUIPMENT CONDITION All Para Description 4-11 Rocker arm covers removed 8-6 Governor spring housing cover TOOLS AND SPECIAL TOOLS removed (Dual range) 8-6 General mechanics tool kit (App B, Item 96) Governor spring housing cover removed (Limited speed) Turbocharger inlet sheild (App B, Item 81) 8-6 Buffer screw backed out Adjustment WARNING Avoid contact with hot manifolds, pulleys, and other moving parts to avoid personal injury. Wear proper ear protection when running engine. Noise volume of engine can cause hearing loss or injury. Protective turbocharger air inlet sheild musr be installed prior to doing maintenance when engine is running and air inlet has been removed. Contact with rotating blades will cause injury to personel Run engine in clean area when air intake ducting is removed. Dirt, dust, and particles in unfiltered air can enter engine and damage parts or cause mechanical failure. a. b. c Start engine and operate coolant temperature of 160-185° (71.1-85.0°C) is attained. PLace governor speed control lever (1) in IDLE position. Hold screw (2) and loosen locknut (3). Adjust engine speed screw (2) to obtain 625+/-25 RPM. Hold adjusting screw (2) in position, and tighten locknut (3). 8-24 Change 1