TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 1-13 CAPABILITIES AND FEATURES — CONTINUED 1-13.2 Powerplant (Engine and Transmission) — Continued b. Two transmissions are used: • Allison XTG-411 -2A transmission (with engine model 7083-7396) with drive controls and final drive assemblies. • Allison XTG-411 -4A transmission (with engine model 7083-7391) with drive controls and final drive assembles. Drive control linkages to the transmission are steer control, shift control, and braking. Final drive assemblies are the interface between the transmission and drive sprockets. 1-13.3 Suspension independent, torsion-bar mounted, dual-sided road wheels (seven per side), which support and guide the vehicle track. 1-13.4 Air Cleaner Assembly Provides filtered air to the engine air intake system. 1-14 LOCATION OF MAJOR COMPONENTS 1-14.1 Location of Major Components NOTE The primary fuel filter on some M109s is located inside the engine compartment access door. LEGEND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1-10 External power receptacle (M109A4/M109A5) Combat override switch (M109A4/M109A5) Accessory control box Cannoneer no. 2 heater (M109A4/M109A5) Turbocharger Driver’s seat Driver’s and portable instrument panels Drive control Driver’s heater (M109A4/M109A5) Batteries (4) Air purifier (M1 09A4/M109A5) Rectifier Master relay Voltage regulator Starter relay 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Bilge pump relay Secondary fuel filter Oil filters (engine) Primary fuel filter Transmission Coolant surge tank Fuel tanks and pumps Bilge pump Engine Radiator Alternator Fan assembly Air cleaner Personnel heater Fixed fire extinguisher