TM-9-2520-272-40 Direct Support for M113A3 X200-4A Transmission 2520-01-397-1074 Download
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TM 9-2520-272-40 0037 REMOVE RANGE INPUT GEARS AND HYDROSTATIC DRIVE GEAR WARNING If not removed, components will fall out of the transmission when the left side is turned down. Failure to comply may result in injury to equipment and personnel. After left cover assembly has been removed, do not turn transmission more than 90 degrees until fabricated range pack retaining f xture has been installed. Two pitot tubes and two bolts extending into the range pack from center housing assembly keep the range pack in position, but are not suff cient support for the range pack when the transmission is turned over. If the left end of the transmission is turned more than 90 degrees (1/4 turn) from top without the range pack retaining f xture in position, parts in range pack may fall out. Failure to comply may result in injury to equipment and personnel. NOTE Bearings are not to be replaced unless defective. Refer to TM 9-214 for inspection of bearings. 1. Remove range input drive gear (Figure 1, Item 2) and hydrostatic drive gear (Figure 1, Item 3), together, from center housing assembly (Figure 1, Item 1). NOTE Range input drive gear and hydrostatic drive gear should not be separated unless one of these gears or inner race must be replaced. When hydrostatic drive gear is removed, inner race is also removed. Bearing outer race and rollers that match race stay in the center housing assembly. Refer to Repair Center Housing Components, WP 0043, to replace outer race and rollers. 2. Remove race (Figure 1, Item 4) and hydrostatic drive gear (Figure 1, Item 3) from range input drive gear (Figure 1, Item 2). 0037‐2