VARIABLE R E S I S T O R INSTALLATION

TM 9-1240-322-34&P

TOOLS: #2 cross tip screwdriver (Phillips type)

5/64" socket head screw key (Allen wrench or equivalent)

5/8" open end wrench

Soldering iron

Solder (item 5, App. A)

SUPPLIES:

Sealing compound (item 4, App. A)

PERSONNEL: One

REFERENCES: JPG 4lC for: Soldering wires

Using sealing compound

EQUIPMENT CONDITION: Infinity sight on work bench

FRAME 1

Procedure

Step

Using soldering iron, solder wires (tagged during removal procedure) to terminal (1) of

variable resistor (2) (JPG).

Using soldering iron, solder wires (tagged during removal procedure) to terminal (3) of

variable resistor (2) (JPG).

NOTE

Make sure that prong (4) is put into the hole on the

back side of cover (5).

Place cover (5) on variable resistor (2).

Using open end wrench, install nut (6) on variable resistor (2).

Put small amount of sealing compound on threads of six screws (7) and cover (5)

(JPG).

Using screwdriver, install six washers (8) and six screws (7) into cover (5) and infinity

sight housing (9).

Install knob (10) on variable resistor (2) and using Allen wrench, tighten setscrew (11).

Turn knob (10) fully counterclockwise to OFF position.

NOTE

FOLLOW-ON MAINTENANCE

Do checkout procedure (Vol I, para 2-2 ).

END OF TASK

Vol II

4-18