Figure 7-59. Steer valve adjustment

TM 9-2520-249-34&P

q. Install steer relay valve spring (76) into

c. If dowel pin (62) was removed, install a

steer valve body (109).

new replacement. Press the pin flush with, to below, the

Install steer relay valve retaining plug (78)

end surface of the valve body.

d. Install plugs (68) into steer valve body

and retainer plug gasket (77).

s. If steer regulator valve stems (81 and 108)

(109).

e. Install pivot valve (63) into steer valve

were removed from steer regulator valves (82 and 107),

assemble the replacement parts. Insert small diameter

body (109, FO-12).

ends of the stems into the larger ends of the valves.

Install preformed packing (64) into steer

Press the stems into the valves until they are firmly

valve body (109).

seated against the shoulders of the valves.

g. Install drive relay valve (116), small

Install stop (83), steer regulator valve outer

diameter end first, into steel valve body (109).

(85) and inner (84) springs onto steer regulator valve

h. Install drive relay valve spring (117) into

assembly (80).

steer valve body (109).

u. Install steer valve (86, FO-12), large end

Install stop pin (58) into steer valve body

first, onto steer regulator valve stem (81) against springs

(109).

(84 and 85).

Install detent ball (60) into steer valve body

v. Install nut (87), flat side first, onto steer

(109).

regulator valve stem (81) but do not tighten at this time.

k. Install detent spring (59) into steer valve

w. Assemble the left steer valve in the same

cover (119).

manner as described in s through v, above (items 100

With springs (117 and 59, FO-12), and ball

through 108).

(60) in position, install gasket (118) and steer valve

x. Install right and left steer valve assemblies

cover (119) onto steer valve body (109) and secure it

(79 and 100) head of stems (81 and 108) first, into steer

with nine 3/8-16 x 1 1/2 inch bolts (122), three 3/8 16 x 1

valve body (109).

3/4 -inch bolts (55), lockwashers (56 and 121), and flat

y. Tighten nuts (87 and 101) at the steer

washers (57 and 120). Tighten the bolts to 26 to 32

valves until the dimension of 3.335 inches is obtained

pound feet torque.

between the land of the steer regulator valve and the

m. Install pivot valve indicator (65) so that the

land of the steer valve, as shown in figure 7-59. The

pointer travels between L and P marks on the valve

steer regulator valve assemblies may be prevented from

body.

rotating while adjusting the nuts by inserting a 5/16 -inch

n. Install retaining rings (66 and 67) onto pivot

diameter rod or punch through the drilled holes in the

valve (63).

valve. After

adjusting the nuts, crimp each nut in

o. Install relay plug valve (74, FO-12) into

two places.

steer valve body (109).

p. Install steer relay valve (75) into steer

valve body (109).

Figure 7-59. Steer valve adjustment

z. Install spring (110, FO-12) and detent ball

outer grooves near the ends of steer regulator valves

(82 and 107).

(112) into steer valve body (109).

ab. While holding the shaft assembly in

aa. Install steer lever blocks (113 and 115)

position, install preformed packing (72) into the top of

onto steer lever shaft assembly (114), using a coating of

oil soluble grease to retain the blocks. Install shaft

assembly (114), indexing blocks (113 and 115) with the

7-57