ILLUMINATING HEAD ASSEMBLY--(EARLY PRODUCTION)--MAINTENANCE INSTRUCTIONS.

ARMY

TM 9-6650-235-13&P

MARINE CORPS

TM-08552A-13&P

5-13. ILLUMINATING HEAD ASSEMBLY--(EARLY PRODUCTION)--MAINTENANCE INSTRUCTIONS.

This task covers:

a. Disassembly

c. Reassembly

b. Cleaning/Repair

INITIAL SETUP:

Tools and Special Tools

References

Instrument and fire control shop

TM 9-254

equipment SC 4931-95-CL-A07

Socket wrench case 11584760

Troubleshooting References

Helicoil insert and tool kit

5-7 Lamp in illuminating head

4131-04-1

assembly or blind illuminating

head assembly is too bright or

Materials/Parts

too dim

Lens paper (item 10, app D)

5-5 Lamp will not illuminate in

Optical lens cleaning compound

illuminating head assembly or

(item 2, app D)

blind illuminating head

Solder (item 15, app D)

assembly

DISASSEMBLY.

CAUTION

Do not mar finish on conductor tubes

during disassembly or reassembly.

a. Twist and pull out lamp (1).

b. Remove three machine screws (2).

c. Remove small reflector (3).

d. Remove preformed rubber packing (4) from

small reflector (3).

5-15