TM9-4120-400-14
DEHYDRATOR (FILTER/DRIER). - continued
5-20.
3. Connect two flare nuts (3) to each end of dehydrator (4).
4. Install mounting clamps (2) with two screws (1).
NOTE
FOLLOW-ON MAINTENANCE:
Leak test refrigerant system (para 5-14).
Evacuate refrigerant system (para 5-15).
Charge refrigerant system (para 5-16)
Install top rear panel (para 4-11).
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EVAPORATOR COIL.
This task covers:
Replacement
INITIAL SETUP
Tools
Equipment Conditions
Remove top panels (para 4-11).
Refrigeration Unit Service Tool Kit
Remove supply air louver (para 4-14).
Appendix B, item 1
Remove mist eliminator (para 4-16).
Gloves
Remove dehydrator (para 5-20).
Appendix B, item 2
Purge refrigerant system (para 5-11).
Materials/Parts
General Safety Instructions
Evaporator Coil
When handling coils wear gloves to avoid cuts and
reduce fin damage on the coil.
REPLACEMENT
1. Remove two screws (1) securing solenoid valve (2).
2. Debraze tube connections at elbow (3) and expansion valve (4) (para 5-12). Take care that expansion valve is
not damaged during debrazing operations.
3. Remove top two flat head screws (5) that attach coil (6) to housing. Remove side two flat head screws (7) and
two each screws (8), lock washers (9), and flat washers (10) that attach the mist eliminator holder(11 ) and coil
(6) to housing.
4. Lift mist eliminator holder(11) up and out of unit.
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