TM9-4120-400-14
[
5-21.
9. Align tubing connections to elbow (3) and expansion valve (4). Braze joints (para 5-13). Take care that
expansion valve is protected during brazing operation.
10. Secure solenoid valve (2) with two screws (1).
NOTE
FOLLOW-ON MAINTENANCE:
EXPANSION VALVE (PRIMARY). ]
[ 5-22.
This task covers:
Replacement
INITIAL SETUP
Equipment Condition
TOOIs
Refrigeration Unit Service Tool Kit
Expansion Valve
Tie Down Straps
Insulation Tape
REPLACEMENT
Unwrap insulation from thermal bulb (1).
1.
Loosen hardware in thermal bulb clamps (2) and slip bulb (1) out of clamps.
2.
3. Cut plastic tiedown strap (3) holding capillary tubing coil to tubing
4.
Debraze three tube connections (4) to valve. (See para 5-12.)
Remove valve (5) from unit.
5.
Place expansion valve (5) in unit and align tubing ends (4).
6.
7.
Install thermal bulb (1) in clamps (2) and tighten hardware.
8.
5-54