Shift Control Linkage.

TM 9-2520-249-34& P

selector detent in the valve body seats in each position.

(2) With torque applied, note the position of

Readjust if required, until the detent seats at each gear

the brake indicator. If the stationary mark on the power

position. Secure the linkage.

train is between Off and Apply, on the brake indicator,

c. Steer Control Linkage.

the brake adjustment must be loosened. If it is at Apply,

or between Apply and Adjust, the adjustment is

(1) Proper adjustment of the steer control

satisfactory. If the mark is at Adjust or beyond, the

linkage will insure that the operator's steer control will

brakes must be tightened.

have full and equal travel left and right.

(3) To adjust the brakes, loosen the brake

(2) The steer valve body has an internal

adjusting screw lock nut and rotate the adjusting screw

detent which seats only in the central (no steer) position.

(fig. 9-6). Clockwise rotation (viewed from the front of

The operator's control wheel (or T bar) must be in the

the transmission) of either the left or right adjusting

central, or no steer, position. Adjust the linkage so that

screw will shorten the brake apply shaft travel. This

it can be connected with the control and valve in the no

tightens the brake adjustment.

Counterclockwise

steer position. Check to see that full and equal travel

rotation will lengthen the brake apply shaft travel (loosen

for left and right steer can be obtained.

the brakes). The brakes are properly adjusted when 100

d. Throttle Valve Linkage.

pound feet of torque on the brake apply shaft will cause

(1) To obtain maximum performance and fuel

the stationary mark on the transmission to aline with the

economy, the throttle valve linkage must be properly

Apply mark on the indicator.

adjusted. The throttle valve lever on the transmission

(4) When both brakes are adjusted, tighten

rotates 17 0' from closed-throttle position to full-throttle

the lock nuts and replace the gaskets, inspection covers,

position. A positive stop, located inside the selector

washers and bolts.

Replace the linkage if the

valve body assembly, indicates full-throttle position.

transmission is in a vehicle. Refer to TM 9-2350-230-

Rotating the throttle valve shaft (fig. 9-4)

35/1 for linkage information.

counterclockwise will seat the valve lever against the

b. Shift Control Linkage.

full-throttle stop.

(1) The linkage connecting the selector shaft

(2) Disconnect the throttle valve linkage, and

with the operator's control should be adjusted carefully.

rotate the throttle valve shaft (at the transmission) to

When the detent in the selector valve body assembly is

full-throttle position. Hold it in this position and move

seated, the transmission is in the gear to which the shift

the vehicle throttle to full-throttle position. Adjust the

indicator points (fig. 9-4). The operator's control must

linkage so that it will connect while both shaft and

be in a corresponding position.

control are at full-throttle position.

(2) To adjust the linkage, disconnect it at one

(3) Check the throttle to be sure:

point. Place the selector valve in neutral (N). Place the

(a) That engine full throttle is available.

operator's control in neutral. Adjust the linkage so that it

(b) That the control will return to closed

can be connected without moving either the selector

throttle position.

valve or operator's control, and connect linkage. Shift

the operator's control through all gears. noting that the

9-7