Section II. STEERING AXLE

TM 10-3930-621-34

(f) Secure caps with lock (23), lock washers (24)

secure with self-locking bolts (13) and nuts (12).

and screws (22 and 25).

(8) Install new housing cover gasket (2, fig. 7- 3)

(5) Position new gasket (1) on mounting flange of

and secure drive axle housing cover (6) to housing (8)

axle housing and coat with a leak proof adhesive.

with bolts (4 and 5), screws (7) and lock washers (3).

(6) Aline carrier housing stud holes with studs (10)

(9) Install axle shafts (para 7-2 c)and lubricate (TM

on axle housing. Proper alinement will prevent damage

10-3930-621-12)

to the threaded studs.

(10) Install drive wheel assemblies (TM 10- 3930-

(7) Install carrier (11) on axle housing and

621-12).

Section II. STEERING AXLE

7-5. Description

(4) Remove adjusting plug (2), ball seat (3),

The cruciform, trunnion mounted steering axle is

spring (4) from tie rods (7).

mounted in lubricated self-alining sleeve bearings. A

(5) Slip cover (11) from tie rod end (10).

hydraulically operated control unit pivots an arm that

(6) Loosen jam nut (8) on tie rod end (10) and

moves tie rods connected to the spindles, on which the

remove tie rod end from tie rods (7).

steering wheels are mounted.

(7) Remove lubrication fittings (6 and 9) from

7-6. RemovaI

rods (7) and tie rod end (10).

a. Refer to figure 7-9 and remove axle as follows:

c. Disassemble bearing housing (12) as follows:

b. Raise rear end of truck with suitable hoist to a

(1) Remove bolts (35), lock washers (33), flat

height at which access can be obtained to the steering

washers (34), and shims (32) from bearing housing (12).

axle. Support in this position with blocks or other

Tag and count number of shims for correct installation.

authorized safe means.

(2) Remove spacers (36) and bearings (28) from

c. Place a suitable jack under steering axle and raise

housing.

it slightly to relieve stress on mounting bearings.

(3) Remove lubrication fitting (37) from top of

d. Disconnect steering cylinder (TM 10-3930- 621-12)

housing.

from ball stud on pivot arm (40) by removing cotter pin at

d. Remove pivot arm (40) from steering axle (43) as

end of cylinder yoke assembly and loosening adjusting

follows:

plug.

(1) Remove nut (27), washer (26) and bearing

e. Remove screws (31) lock washers (30), and nuts

cone (25).

(29) attaching bearing housings (12) to trunnion blocks.

(2) Remove pivot arm (40) from axle and bearing

f. Slowly lower axle assembly, with tie rods attached,

cup (42) and remove bearing cone (41) from pivot arm

to ground.

(40).

g. Remove bearing housings from axle.

(3) Remove bearing cups (24 and 42) and

7-7. Disassembly

retaining ring (23) from axle if replacement is necessary.

a. Refer to figure 7-9 and disassemble axle as follows:

(4) Remove lubrication fitting (39). e. Remove

b. Remove and disassemble both tie rod assemblies

king pins (14) and spindles (18 and 38) as follows:

(1) as follows:

(1) Remove expansion plugs (13J.

(1) Remove cotter pin (20), nut (21), and flat

(2) Remove pins (17) and tap king pins (14) from

washer (19) from bottom of tie rod end (10).

spindles (18 and 38).

(2) Remove cotter pin and loosen adjusting plug

(3) Remove spindles (18 and 38) from axle.

(2).

Remove four nylon thrust washers (16).

(3) Remove tie rod assemblies (1).

(4) Press out needle bearings (22) from axle.

(5) Remove lubrication fitting (15).

7-9