Valve Subassembly (Type A-1 Only)

TM 9-6685-202-14

KEY to fig. 4-5

KEY to fig. 4-4

1. Screw, cap, socket head HIC 4-40 x 3/8

A. Screw, cap, socket head HIC 4-40 x 3/4

2. Nut, adjusting HIC 10-20-16

B. Nut, locking HIC 10-20-16

3. Screw, correcting HIC 10-30-06-B

C. Washer, steel HIC No. 4

4. Screw, cap, socket head HIC 4-40 x 3/8

D. Washer, valve HIC 10-00-08-A

5. Washer, flat HIC No. 4

E. Diaphragm HIC 10-00-09-A

6. Screw, cap, socket head HIC 4-40 x 1/2

F. Stud, valve HIC 10-00-06

7. Washer, fiat HIC No. 4

G. Nut, stainless steel HIC 4-40

8. Washer, lock HIC No. 5

H. Valve, ball HIC 10-00-07

9. Nut, adjusting HIC 10-20-16

NOTE

10. Eccentric, correcting HIC 10-30-03

The key letters shown below in

11. Setscrew HIC 4-40 x 1/8

parenthesis refer to figure 4-4.

12. Bracket, correcting screw HIC 10-30-05-B

b. Valve Subassembly (Type A-1 Only) (Fig. 4-4).

13. Stud, correcting screw bracket HIC 10-30-

To disassemble the valve subassembly for purposes of

cleaning, lift valve subassembly out of barometer tube,

14. Nut, flexlock HIC No. 4-40

remove socket head cap screw (A), to separate locking

15. Index, temperature HIC 10-30-10-B

nut (B), steel washer (C), valve washer (D), and

16. Screw, cap, socket head HIC 4-40 x 3/8

diaphragm (E) from valve stud (F). Unscrew ball valve

17. Arm, camrod HIC 10-30-13-B

(H) and nut (G) from valve stud (F).

18. Setscrew, socket head HIC 4-40 x 1/8

NOTE

19. Scale, temperature and gravity HIC 10-30-

The valve assembly is precision

machined to match a particular

20. Screw, round head HIC 3-56 x 3/16

barometer tube. If the barometer

21. Washer, fiat HIC No. 3

tube has been broken, a new valve

22. Block HIC 10-30-16-B

subassembly will be supplied with

NOTE

the replacement tube.

Do not

The key numbers shown below in

interchange barometer tubes and

parenthesis refer to figure 4-5.

valve subassemblies.

4-13