TM-9-2520-234-35 Technical Manual for M109 Transmission XTG-411-2A Download
Page 232 of 323
CHAP 5, SEC XXXIV TESTS AND ADJUSTMENTS PAR 234 (c) With the brakes fully applied, ob- (d) Install inspection cover gaskets, serve the position of the marks on the levers inspection covers, lock washers and bolts. in relation to the marks on the bearing retainer. (d) If the index marks on the levers rotate to the Apply mark on the retainer but not to the Readjust mark, the brakes are satis- factorily adjusted. (e) If the index marks on the levers do not rotate to the Apply mark or if they ro- tate to the Readjust mark, the brakes must be readjusted. (f) To adjust the brakes, remove the inspection covers at the rear of the transmis- sion rear housing and rotate the adjusting nuts by inserting a screwdriver in the slots in the nuts (refer to fig. 371). Clockwise rotation will shorten the lever travel (tighten brakes). Counterclockwise rotation will lengthen the lever travel (loosen brakes). Adjust both brakes uniformly so that, with brakes fully applied, both marks on the levers aline with the Apply mark on the bearing retainer. Re- place inspection covers. Note. If the brake linkage is not in- stalled, the brakes may be adjusted using the same procedures as out- lined in (a) through (f), above, except that wrenches 8351386 and 8351387 may be used to apply the brakes (fig. 370). The brakes should be applied with approximately 90 pound-feet torque. (2) New or rebuilt power train not in vehicle. (a) Remove inspection covers from the rear of the transmission rear housing. (b) Insert gage 8351213 into the slot in the brake anchor, ring, and between the brake apply-rotating ring and the first brake plate (fig. 371). (c) Rotate the adjusting nut until gage 8351213 is snug between the apply ring and brake plate. The adjustment must neither bind the gage nor leave it loose. Adjust both brakes by this method. c. Shift Control Linkage — (1) The linkage, connecting the selector valve shaft (fig. 368) with the operator’s shift control, should be adjusted carefully. When the detent in the control valve assembly is seated, the power train is in the range to which the shift indicator points. The operator’s con- trol must be in a corresponding position. (2) To adjust the linkage, disconnect it at one point. Place the control valve in neutral so that the detent seats and place the operator’s shift control in neutral position. Adjust the linkage so that it can be reconnected without moving either the control valve or operator’s shift control. Try the control through all range positions, making sure that the detent seats in each. d. Steer Control Linkage (1) Proper adjustment of the steer link- Figure 371. Adjusting transmission brake 200