RESSSEMBLY (CONT) - TM-3-4230-209-20-P0220

TM 3-4230-209-20&P

2-188

2-33. CONTROL BOX ASSEMBLY (CONT).

REMARKS

ACTION

LOCATION/ITEM

CAUTION

Do not bend or kink capillary tube. Any damage requires

replacement. Do not coil capillary tube in a coil less than 6

inches in diameter while handling it.

Control Box Assembly/

Screw check valve (19) with preformed packing (20) attached into bottom

Check valve (19)

Preformed packing (20)

of temperature regulating valve (21). Wrap male threads of pipe-to-tube

Temperature regulating

elbow (22) with antiseizing tape before screwing into top of temperature

valve (21)

regulating valve (21). Tighten pipe-to-tube elbow (22) so the open end will

Pipe-to-tube elbow (22)

point directly at the nonmetallic grommet (14). Tighten (do not loosen)

pipe-to-tube elbow (22) to aline. Install temperature regulating valve (21),

pipe-to-tube elbow (22), and check valve (19) as a unit into control box (2).

Selector line (23)

Stick selector line (23) through nonmetallic grommet (14) and screw tube

Tube coupling nuts (24)

coupling nuts (24) onto the pipe-to-tube elbow (22) and pipe-to-tube

tee (13) fingertight.

Hexagon plain nut (25)

Install hexagon plain nut (25) onto end of temperature

regulating valve (21 ) and tighten fingertight. Tighten

two tube coupling nuts (24) and hexagon plain nut (25).

Knob (26)

Install knob (26) with setscrew (27) installed. Tighten

Setscrew (27)

setscrew (27).