Assembly. - TM-10-3930-631-340136

TM 10-3930-631-34

P-D-680) used for cleaning is potentially dangerous to

KEY to fig. 9-15:

personnel and property. Do not use near an open flame.

1. Screw

Flash point of solvent is 1000 F to 138 o F (38 C to 59

2. Washer

C).

3. Lock washer

4. Nut

(1) Clean parts in cleaning compound solvent

5. Bearing

(Fed. Spec. P-D-680) and dry thoroughly.

6. Nut

(2) Check screws and rods for stripped or worn

7. Lock washer

threads and other damage.

8. Cover

(3) Check spring for bent or damaged condition.

9. Gasket

(4) Inspect actuator and arm for wear or

10. Rod

damage.

11. Expansion plug

12. Wiring harness

(5) Inspect bearings for wear and damage.

13. Harness connector

(6) Inspect potentiometers for damaged threads

14. Inching potentiometer

and terminals. Rotate potentiometer shafts. Shafts

15. Plugging potentiometer

should rotate smoothly without binding.

16. Nut

(7) Replace damaged or unserviceable parts.

17. Setscrew

e. Assembly.

18. Speed potentiometer

19. Actuator

(1) Install potentiometers (14, 15 and 18, fig. 9-

20. Setscrew

15) in control box and secure with nuts and lock

21. Collar

washers. Install actuator (19) on speed potentiometer

22. Stop screw

shaft and secure with setscrew (17) and nut (16). Install

23. Nut

wiring harness (12) and secure with connector (13).

24. Washer

Solder correct leads to potentiometers (fig. 9-3).

25. Return spring

(2) Install flange bearings (35, fig. 9-15) on

26. Pin

27. Accelerator shaft

control box and secure with screws (32), lock washers

28. Arm

(33) and nuts (34). Press bearing (30) into bracket (31).

29. Pin

Install bracket on shaft.

30. Bearing

(3) Install bearing (5) on end of shaft and secure

31. Bracket

with screw (1), washer (2), lock washer (3) and nut (4).

32. Screw

(4) Start end of assembled shaft through flange

33. Lock washer

bearing. Slide arm (28), spring (25) and collar (21) on

34. Nut

35. Flange bearing

shaft and slide end of shaft into other flange bearing.

36. Box

(5) Install pin (26) through arm and shaft. Install

(2) Tag harness leads (fig. 9-3) and cut off

stop screw (22) and secure with nut (23) and lock

leads at potentiometers. Remove nut and harness

washer (24). Attach end of spring to stop screw between

connector (13) and remove harness (12).

lock washer, nut and control box bracket.

(3) Remove nut (23), lock washer (24) and

(6) Connect other end of spring to pin on arm.

screw (22) to release end of spring (25). Drive pin (26)

(7) Check operation of shaft assembly in flange

from arm and loosen setscrew (20) in collar. Remove

shaft (27). Remove screw (1), washer (2), lock washer

bearings. Slide collar against flange bearing and tighten

(3) and nut (4) and remove bearing (5) from shaft.

collar setscrew to hold shaft in position.

Install

Remove bearing bracket (31) from shaft and press

expansion plugs (11) in holes in box.

bearing (30) from bracket.

f. Installation.

(4) Remove collar (21), spring (25) and arm (28)

(1) Install accelerator control box (14, fig. 9- 14)

from control box.

on frame. Start threaded rods (10, fig. 9-15) through

(5) Remove nut (16) and setscrew (17) and

holes in frame. Install nuts (13, fig. 9-14) and lock

remove actuator (19) from speed potentiometer. Remove

nuts and lock washers securing potentiometer to control

washers (12) on rods but do not tighten. Install two nuts

box bracket and remove speed potentiometer (18) from

(6, fig. 9-15) and lock washers (7) on threaded rods

control box.

inside of box.

(6) Remove nuts and lock washers and remove

inching potentiometer (14) and plugging potentiometer

(15) from control box.

(7) Remove screws (32), nuts (34) and lock

washers (33) and remove flange bearings (35) from

control box.

d. Cleaning, Inspection and Repair.

WARNING

Cleaning

compound

solvent

(Fed.

Spec.

9-22