Steering Cylinders - TM-10-3930-634-340193

TM 10-3930-634-34

5-15. Steering Cylinders

with vehicle speeds over 10 miles per hour. For convoy

operation, or extended periods of use in two-wheel

a. Removal. Refer to figure 5-13 and remove the

steer mode, it is recommended that the safety detent

hydraulic steering cylinders.

be locked in to prevent accidental activation of four-

NOTE

wheel steer. The four-wheel steer capability is con-

After removing hydraulic lines, be sure to cap

rolled by a series of links located under the driver's

lines and use plug caps on cylinders to keep

compartment. The modes of steering (two-wheel, four-

out foreign matter.

wheel crab, and four-wheel cramp) are controlled by a

b. Disassembly. Refer to figure 5-14 and disassem-

three-position hydraulic cylinder anchored on the pit-

ble the steering cylinders.

man arm and acting upon the steering actuator arm. A

c. Cleaning and Inspection.

valve, located in the link anchored on the rear cross

(1) Clean the cylinder and metal components thor-

shaft bell crank and the forward end of the steering

oughly, using solvent P-D-N30 or equal.

actuator arm, controls the action of rear-wheel steer-

(2) Inspect rod end bushings for excessive wear.

ing by hydraulic pressure.

(3) Inspect extension rod for smoothness and in-

5-21