TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 182 of 1275
TM9-2350-311-20-1 3-3 TROUBLESHOOTING CHART — CONTINUED f. TRANSMISSION AND DRIVING CONTROLS The transmission is mechanically and hydraulically operated and is oil cooled. Power to operate the transmission is delivered by the engine through the transfer assembly. See diagram below. The transmission has 7 gears: 4 forward, 1 neutral, and 2 reverse. Once power is provided to the transmission, it delivers this power to the left and right drive sprockets through an output shaft, universal joints, and the final drive assemblies. The final drive assemblies reduce the transmission power and provides this reduced power to the sprockets and hubs. The transmission also serves as the steering and braking mechanism for the vehicle. 3-82