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 282 of 590

TM 9-1240-401-34&P

5.1-20. COUNTER ASSEMBLY MAINTENANCE INSTRUCTIONS

This task covers:

a. Disassembly

b. Repair

c. Assembly

INITIAL SETUP

Tools

References

Fire Control Maintenance and Repair Shop Specialized

TM 9-254

Equipment Wrench Set, Spanner, DS, GS Maintenance:

TM 9-2350-311-20-2

Tubular, Double Ended, Concave, Inserted Blade Set, 76

Wrenches 4931-00-580-0012

Equipment Conditions

Shop Equipment, Instrument and Fire Control: Field

M15 quadrant removed from howitzer (TM 9-2350-311-

Maintenance, Basic (SC4931-95-CL-A07) 4931-00-754-

20-2)

0740

Cover assembly removed (ref. para 5.1-14)

Cross-level knob removed (ref. para 5.1-14)

Tool Kit, Instrument and Fire Control System, Repair,

Field Maintenance (SC5180-95-CL-B29) 5180-01-168-

0487

Counter assembly removed (ref. para 5.1-19)

Knob assembly removed (ref. para 5.1-14)

Materials/Parts

Grease

Item 6, appx B

Lockwasher (4)

MS35338-134

Lockwasher (4)

MS35338-136

5.1-48

Change 1