DISASSEMBLY. - TM-10-3930-623-340042

TM 10-3930-623-34

The only units subject to

5. Carefully draw power axle forward, clear of

4-46. DISASSEMBLY.

disassembly are the spot light (32, figure 4-9) and the

vehicle.

stop-taillight (17). Refer to figure 4-9, where all details of

disassembly are shown.

WARNING

Arrange that power axle does not

suddenly pivot as studs (45) leave

4-47.

CHASSIS MOUNTED HYDRAULIC BRAKE

transmission. Keep hands free of

SYSTEM.

any area where they might be

pinched by sudden shift in axle

NOTE

position.

The wheel portion of the brake

system is covered in the drive axle

4-52. DISASSEMBLY.

(see paragraph 4-53).

1. Remove two spring pins (6, figure 4-12 ), parking

brake rods (5), cotter pins (3), nuts (4) and levers (2).

4-48. MASTER CYLINDER REMOVAL.

Refer to TM 10-3930-623-12.

2. Remove brake tube assemblies (8 and 9),

screws, nuts and washers (15, 16, 17 and 18), fittings

(10, 11, 13, 14 and 19) and related attaching parts.

3. Remove screws and washers (22 and 23) and

separate sections of final drive gear case (47) and axle

housing (61). Remove cotter pin, nut and washer (25,

26 and 27).

4. Remove internal gear (24), bearings (28 and

29), screw (31), final drive shaft (30), gasket (32), outer

bearings (33 and 34), brake drum (35) and drum seal

(36).

5. Remove screws and washers (38 and 39) and

4-49. MASTER CYLINDER DISASSEMBLY.

nuts and washers (40 and 41) from studs (42 and 43).

1. Remove bolt (27, figure 4-10), gaskets (28 and

Take off brake assembly (37) and pin (44).

30) and fitting (29). Remove fill cap (31) and gasket (32)

and discard old brake fluid.

6. Take out parking brake lever and pin (45) and

packing (46) from final drive gear case (47). Discard

2. Pull push rod (33) from boot (34), and pull off

gasket (48).

boot.

7. Remove six screws and washers (50 and 51)

3. Remove retaining ring (35) and take items 36

and remove both bearing retainers (49), axle shaft (52)

through 40 from bore of cylinder.

and bearing and retainer (54 and 53).

8. Remove nuts (55) and washers (56 and 57) to

4-50. DRIVE AXLE.

free axle housing from final drive housing (76). Separate

items 61 and 76, and remove eight tapered bushings

4-51. REMOVAL.

(58) from holes in axle housing. Remove and discard

1. Remove the complete upright, back rest, fork

gaskets (62 and 63).

and carriage assembly as instructed in paragraph 4-22

to obtain access to drive axle assembly.

9. Remove bearing (60 and 64), screws (66) and

separate halves of differential case (65). Parts index

2. Block up front of truck so weight is taken from

numbered 67 through 71 may now be removed

front wheels. Drain oil from transmission and power

individually. To move ring gear (72), drill heads off of

axle. Disconnect brake hoses at brake line tubes (1, 2,

rivets (73) from ring gear side to avoid damage to case,

and 3, figure 4-10) and parking brake linkage at wheels.

and remove rivets.

3. Support transmission so its weight does not

CAUTION

depend on engine for support.

Be careful not to drill further than

necessary to remove rivet heads.

4. Remove two cap screws and lock washers (44

and 48, figure 4-11), seven nuts (46), washers (48) and

4-53.

WHEEL

BRAKE

REMOVAL

AND

jam nut and washer (47 and 48). Remove and discard

DISASSEMBLY.

gaskets (14 and 18) after noting total thickness for

4-54. Routine overhaul of the brake assembly (see

guidance in selecting new, gaskets when replacing drive

figure 4-13) does not usually require complete

axle.

disassembly of the brakes. Disassemble the brakes to

the extent necessary according to the following

instructions:

4-12