TM9-4120-400-14
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EXPANSION VALVE (QUENCH). - continued
5-23.
REPLACEMENT
1.
Unwrap insulation from thermal bulb (1).
Loosen the hardware in clamps (2) that hold thermal bulb (1) in place and slip thermal bulb out of clamps.
2.
Cut the plastic tiedown strap (3) from the capillary line.
3.
Debraze two tube connections (4) to valve (5).
4.
Remove two screws (6), post spacers (7), brackets (8), and self-locking nuts (9).
5.
Remove valve (5) from the unit.
6.
7.
Install flush bushing (10) in valve (5).
Place expansion valve (5) in unit and align tubing ends (4).
8.
Braze joints. (See para 5-12.)
9.
10. Secure valve (5) to housing with two each screws (6), post spacers (7), brackets (8), and lock nuts (9).
11. Install sensing bulb (1) in clamps and tighten screw and nut.
12. Rewrap insulation at sensing bulb.
13, Coil excess capillary line of expansion valve (5) and secure with tiedown straps (3).
NOTE
FOLLOW-ON MAINTENANCE:
Install new dehydrator (para 5-20).
Install top panels (para 4-11).
5-57
