TM-9-2520-234-35 Technical Manual for M109 Transmission XTG-411-2A Download
Page 78 of 323
Figure 21 CHAP 2, SEC V TORQUE PATHS PAR 45 Figure 21. Output drive torque path 45. TORQUE PATH - OUTPUT DRIVES (fig. 21) a. Figure 21 is a cutaway view of the left-output drive (mounts at right side of power train). The construction of the right assembly is identical except for length; operation is identical. b. Torque is transmitted from the main transmission section output to the output drive assembly by the output drive sun gear shaft. The integral sun gear imparts torque to the planetary pinions which are mounted in a sta- tionary carrier. In turn, the pinions transmit torque to the ring gear. The ring gear, splined to the output shaft, transmits torque to the output shaft. c. Arrows indicating the direction of ro- tation illustrate conditions when the power train is operating in a forward gear. In a re- verse gear, all rotations would reverse. Note that the output drive output rotation is opposite that of the output drive input because the re- action member (stationary member) is the planetary carrier. 48