TM 9-4120-407-14
4-20. REFRIGERANT DESICCANT DEHYDRATOR (FILTER-DRIER) INSPECTION AND
REPLACEMENT.
This task covers:
a. Inspection b. Removal
c. Installation
Tools
Materials/Parts
Service Refrigeration Unit Tool Kit
Self Locking Nuts, Qty 2 (Item 15, Appendix G)
(Item 1, Appendix B)
a . Inspection. Inspect refrigerant desiccant dehydrator (1) for visible signs of damage. Replace if
damaged.
b Removal.
(1) Discharge refrigerant system. See paragraph 4-12.
(2) Remove lower front panel. See paragraph 3-14.
(3) Loosen and move electrical component bracket. See paragraph 3-28.
(4) Loosen and disconnect two flare nuts (2).
Figure 4-12. Refrigerant Desiccant Dehydrator (Filter-Drier)
(5) Remove two self locking nuts (3), flat washers (4) and screws (5). Slip refrigerant desiccant
dehydrator (1) and two brackets (6) from air conditioner. Discard self locking nuts.
(6) Remove refrigerant desiccant dehydrator (1) from two brackets (6).
4-50
