Cleaning, Inspection, and Repair - TM-10-3930-621-340126

TM 10-3930-621-34

KEY to fig. 7-9:

1. Tie rod assemblies

17.

Spring pin

33.

Lock washer

2. Adjusting plug

18.

Right spindle

34.

Flat washer

3. Seat

19.

Flat washer

35.

Bolt

4. Spring

20.

Cotter pin

36.

Spacer

5. Cotter pin

21.

Slotted nut

37.

Lubrication fitting

6. Lubrication fitting

22.

Needle bearing

38.

Left spindle

7. Tie rods

23.

Retaining ring

39.

Lubrication fitting

8. Jam nut

24.

Bearing cup

40.

Pivot arm

9. Lubrication fitting

25.

Bearing cone

41.

Bearing cone

10. Tie rod ends

26.

Washer

42.

Bearing cup

II. Cover

27.

Nut

43.

Axle

12. Housing

28.

Bearing

44.

Nut

13. Expansion plug

29.

Nut

45.

Setscrew

14. King pin

30.

Lock washer

15. Lubrication fitting

31.

Screw

16. Thrust washer

32.

Shim(s)

d. Install lubrication fitting (37). bearings (28), and

7-8. Cleaning, Inspection, and Repair

spacers (36) in housings (12)

a. Clean all parts with cleaning compound, solvent

e. Lubriate housing (12) per (TM - 0-3930-621- 12).

(Spec. P-S-661).

f. Assemble and install tie rods (7 ) as follows:

b. Inspect all moving parts, bearings, and attaching

(1) Install lubrication fittings (6 and 9) on rods (7)

parts for wear, corrosion or other damage.

and tie rod ends (10).

c. Worn or deteriorated parts must be replaced as

(2) Install tie rod ends (10) in rods i7) and tighten

authorized.

jam nuts (8).

(3) Install covers (11) on tic re)d ends (10).

7-9. Assembly

(4) Install adjusting springs i4), hall seats (3) and

a. Refer to figure 7-9 and assemble and install as

plugs (2) in tie rods (7).

follows:

(5) Install tie rods on spindles 18 and 38) and

b. Install king pins (14) and spindles (18 and 38) as

pivot arm (40).

follows:

(6) Tighten adjusting plugs 12). then back off

(1) Install lubrication fitting (15) and needle

enough so there is some end play secure plugs with

bearings (22) in axle.

cotter pins.

(2) Aline spindles (18 and 38) and thrust

(7) Secure tie rod ends (10) to axle with flat

washers (16) in axle and tap in king pins(14).

washers (19), nuts (21), and cotter pins (20).

(3) Aline king pins (14) in spindle (18 and 38)

(8) Lubricate tie rod ends (10) and rods (7) (TM

and tap in pins (17) to secure king pins.

10-3930-621-12).

(4) Install expansion plugs (13).

7-10. Installation

(5) Lubricate assembly (TM 10-3930-621- 12).

c. Install pivot arm (40) in axle (43) as follows:

(1) Install lubrication fitting (39) and pack bearing

a. Install axle assembly in place and secure bearing

cones (25 and 41) with grease (GAA).

housings (12) to trunnion blocks with screws (31), lock

(2) Install retaining ring (23) and bearing cups

washers (30), and nuts (29). Leave nuts loose.

(24 and 42) in axle (43), if they are removed.

b. Install shims (32), same quantity and size as

(3) Press bearing cone (41) on pivot arm (40).

removed, and secure with screws (35.), lock washers

(4) Install pivot arm (40) in axle (43), firmly

(33), and flat washers (34). Tighten nuts: (29) securely.

seating bearing cone (41) in bearing cup (42).

c. Refer to TM 10-3930-621-12: and connect steering

(5) Press bearing cone (25) into bearing cup (24)

cylinder to steering axle.

at bottom of axle.

7-11. Adjusting

(6) Slide washer (26) on pivot arm (40) and

secure assembly with nut (27). To preload bearings,

Refer to TM 10-3930-621-12 for adjustment

torque nut to 20-30 foot-pounds. Stake nut to hold in

procedures.

position.

b. After adjustment, remove block, and lower truck to

(7) Using fitting (39), lubricate cavity with grease

ground.

(TM 10-3930-621-12).

7-11