TM-9-1240-401-34-P

TELESCOPE MOUNT M146: M118A2 AND M118A3; TELESCOPE MOUNT M145: M145A1; PANORAMIC TELESCOPE: M117 AND M117A2; FIRE CONTROL QUADRANT: M15; PERISCOPE: M42

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

JULY 1993

TM-9-1240-401-34-P - Page 329 of 590

TM 9-1240-401-34&P.

Section IV. Direct Support Maintenance Procedures

7-10. LINKAGE ASSEMBLY MAINTENANCE INSTRUCTIONS

This task covers:

a. Disassembly b. Repair c. Assembly

INITIAL SET-UP

Tools

Lockwashers (4) (Item 79, appx E)

Self-locking

Tool Kit, Electronic System, Repair, Field Mainte-

nance (SC5180-95-CL-B29) 51 80–01-1 68-0487 References

TM 9-254

nuts (2) (Item 18, appx E)

Grease (Item 6, appx B)

Lockwasher (Item 78, appx E) for 8267877

Linkage assembly removed from howitzer

Lockwasher (Item 74, appx E) for 12563124

(TM 9-2350-311-20-2 /TM 9-2350-314-20-2)

a. Disassembly

I

1

2

3

4

5

6

7

8

9

Remove four cap screws (1) and four Iockwashers

(2). Discard Iockwashers.

Remove

(5).

Remove

shaft (7).

plate (3), plate (4), and two gripspring sets

two self-locking nuts (6) from shouldered

Tap shouldered shaft (7) from arm (8)

with brass drift punch. Discard self-locking nuts.

Separate arm (8) from link (9) and remove two

gripspring sets (10).

Remove two washer bearings (11) and bearing

(12) from link (9).

Remove cap screw (13), Iockwasher (14), and

setscrew (15) from connector (16). Discard lock-

washer.

Using adjustable spanner wrench, remove

threaded ring (17).

Remove retaining ring (18), bearing (19), and shaft

(20) as a unit.

Remove retaining ring (18) and bearing (19) from

shaft (20).

7-5