TM 9-4110-256-14
5-33. HEAT EXCHANGER REPLACEMENT .
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Self Locking Nuts (2)
Refrigeration system discharged (para 5-8) and
12, Appendix G
purged (para 5-9).
Insulation Tape
Evaporator coil guard removed (para 4-18).
10, Appendix E
a. Removal.
(1) Remove insulation (1).
(2) De-braze four fittings (2) from heat exchanger (3) (para 5-10).
(3) Remove two self locking nuts (4), bolts (5), heat exchanger (3), and clamps (6). Discard self locking nuts.
Figure 5-29. Heat Exchanger
b. Installation.
(1) Install two clamps (6) onto heat exchanger (3), then install heat exchanger, two bolts (5), and new self
locking nuts (4).
(2) Braze four fittings (2) onto heat exchanger (3) (para 5-10).
(3) Install insulation (1) and secure with insulation tape.
NOTE
FOLLOW-ON MAINTENANCE:
Install evaporator coil guard (para 4-18).
Replace dehydrator (para 5-15).
Leak check (para 5-11), evacuate (para 5-12), and charge (para 5-13) the refrigeration system.
5-62