Temperature and Gravity Scale Assembly (Type A-1 Only)

TM 9-6685-202-14

6. Spring, correcting lever bracket HIC 10-30-

c. Temperature and Gravity Scale Assembly (Type

23-A

A-1 Only) (Fig. 4-5). Perform the following steps to

7. Screw, correcting lever HIC 10-30-25-A

disassemble the temperature and gravity scale

8. Bracket, cam follower HIC 10-30-21-A and

assembly for utilization of authorized replacement parts.

follower HIC 10-30-26

(1) Remove socket head cap screw (1),

9. Pin, dowel, cam follower HIC 10-30-32

adjusting nut (2) and correcting screw (3) by removing

10. Pin, correcting lever HIC 10-20-23

cap screw (4) and flat washer (5).

11. Pin, correcting HIC 10-20-14-A

(2) Remove correcting eccentric (10) from

12. Lever, correcting HIC 10-20-11

adjusting nut (9) by removing set screw (11).

13. Screw, correcting lever HIC 10-20-10B

NOTE

14. Vernier HIC 20-10B

Older barometers already in service

15. Screw, machine, fillister head HIC 0-80NF-

employ a different type of correcting

2 x 1/8

nut than the model covered in this

16. Lamp (No. 323) 6240-155-7864

manual. These correcting nuts have

17. Bracket, light HIC 10-21-01

a socket head screw (6), flat washer

18. Ring, sighting HIC 10-20-09

(7), and lockwasher (8) installed in a

19. Screw, machine, fillister head HIC 0-80 NF-

tapped hole passing through the

2 x 3/32

diameter.

20. Screw, machine, fillister head HIC 0-80NF-

2X32.

(3) Remove correcting screw bracket (12)

21. Slide, sighting ring HIC 10-20-17-B

which is secured to block (22) by removing correcting

22. Strip, contact HIC 10-20-20-A

screw bracket stud (13) and flexlock nut (14).

23. 3crew, machine, fillister head HIC 0-80NF-

(4) Remove temperature index (15) by

2X3/32

removing socket head cap screw (16).

24. Strip, contact insulating HIC 10-20-21-A

(5) Remove arm (17) by removing setscrews

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

(18)

26. Magnifier HIC 81-26-05

(6) Remove temperature and gravity scale

27. Post, magnifier HIC 10-20-07-A

(19) by removing round head screws (20) and flat

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

washers (21) from block (22).

29. Strip, vernier HIC 10-20-24

KEY to fig. 4-6

30. Screw, machine, fillister head HIC 0-80NF-

1. Bracket, adjusting rod clamping HIC 10-20-

2 x 1/8

31. Slide, vernier HIC 10-20-18

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

NOTE

3. Nut, locking HIC 10-20-16

The key numbers shown below in

4. Bushing, clamp HIC 10-20-15

parenthesis refer to figure 4-6.

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

4-15