Rear Drag Link

TM 10-3930-634-34

fied by passing a string completely around the outside

front cross shaft for looseness. Any looseness in this

arm that allows relative motion between it and the

of the vehicle at the axle centerline. Proper alignment

cross shaft must be eliminated, as it will cause even-

exists when string touches each tire sidewall in two

places.

tual loss of control.

h. Remove the alignment rod from intermediate

5-22. Rear Drag Link

steering arm and reconnect the valve link arm. Adjust

the valve link arm by turning the threaded section- un-

a. Removal. Remove the rear drag link (TM 10-

3930-634-12).

til ball stud at valve end of arm is directly opposite

b. Disassembly. Refer to figure 5-22 and disassem-

lower pivot center in intermediate steer arm and also

ble the rear drag link.

opposite end of intermediate steer arm and opposite

c. Cleaning and Inspection.

end of rear cross shaft tube.

(1) Clean the rear drag link components thorough-

i. Adjust front and rear drag links to drop into axle

ly, using solvent P-D-680 or equal.

steering arms. The rear drag link contains a spring

(2) Inspect the drag link for worn bearing, worn

which must not be extended or compressed during re-

stud, broken spring, damage or cracks. Replace all de-

connection.

fective parts.

j. Wart engine, and without moving steering wheel,

d. Reassembly. Refer to figure 5-22 and reassemble

operate the steering mode selector into the crab and

the drag link as follows:

cramp or 4-wheel steering positions. With the front

(1) Apply a light coat of grease on the non-

wheels aimed straight ahead, there should be no move-

chromed section of the shaft (30).

ment of the rear wheels as the steering mode selector

(2) Coat the sleeves (25) and spring (26) with

is shifted through the various modes. If movement

grease and install the shaft (30).

does occur, the links in the system have been damaged.

The steering system can be adjusted to compensate for

(3) Install spacer (24) and nut (23) on the shaft,

parts which have sustained minor deformations. Satis-

then tighten the nut until one thread is exposed on the

factory operation can be accomplished by adjusting

back side of the nut.

(4) Assemble nut (27), adapter (28) and wiper (29),

the valve link arm and the rear drag link to eliminate

the movement of the rear wheels. Only if absolutely

and install on shaft (30).

(5) Install shaft assembly into tube (22) and

necessary should the position of the pitman arm be

tighten the adapter until there is no free play between

changed to accomplish this adjustment. Turn steering

wheel slightly to obtain correct position of pitman

shaft assembly and tube. Excessive tightening of the

adapter can also cause free play.

arm. As a final check, after such an adjustment, verify

(6) After the assembly has been adjusted, tighten

that all four wheels are aimed straight ahead using the

locknut (27) against the tube (22).

string method described above. Readjust drag links if

required.

NOTE

k. Operate the steering through full left and right

Refer to paragraph 1-7b for steering adjust-

ment specifications.

positions and in all three steering modes to check for

e. Installation. Install the rear drag link (TM

proper functioning and no binding.

10-3930-634-12).

l. Carefully check the arm on the inboard end of the