TM 9-2520-246-34 Figure 1-6. Positive Locking Transfer Model T-136-27 (Rear View). (b) Transfer model T-136-27 is used on the following models: M35A2 M35A2C M36A2 M36A2C M44A2 M45A2 M45A2G M46A2 M46A2C M49A2C M50A2 M50A3 M109A3 M185A3 M275A2 M292A2 M292A5 M342A2 M621 M622 M623 M624 M756A2 M764 d. Power Takeoffs (Models WN-7-28, WND-7-28, and P-136-C). (1) Power takeoff models WN-7-28 and WND-7- 28, (fig. 1-9 and 1-10) are driven by the transmission and provide power to drive the vehicle winches. pumps, and other special or auxiliary equipment. Both takeoffs are designed to be mounted on a Society of Automotive Engineers’ (SAE) standard, six-bolt hole power takeoff opening. However, when required, these units may be mounted on four-hole openings if suitable filler blocks and driving gears are used. Both units are of the heavy-duty type. having two forward speeds and one reverse speed. The units are designed for either left or right hand mounting on the drive mechanism. The shifter shaft extends through both ends of the case. thus making the shift linkage adaptable to either end of the shaft. For a more detailed description and operation of the power takeoffs, refer (2) Power nearly identical to Chapter 5. takeoffs WN-7-28 and WND-7-28 are throughout the mechanism. However. power takeoff model WND-7-28 uses two output shafts, and model WN-7-28 has only one output shaft. The internal gearing is identical for both units, except for the additional output shaft. (3) Power takeoff model P-136-C (fig. 1-11) is a single drive, one-speed unit designed to mount only on transfers. The outer carriers are circular in shape and serve as a support for the main drive shaft and driveshaft bearings. This unit is used to drive various types of auxiliary vehicle equipment. Refer to Chapter 5 for a more detailed description and operation of the transfer-mounted power takeoff. 1-4