TM 9-4110-255-14
(3) Install dual pressure control switch (5), two new lock washers (13), and bolts (12).
(4) Using tags on old dual pressure control switch (5) for reference, neatly route new capillary tubing to tees
and carefully coil excess tubing as necessary.
(5) Align each capillary tube (10) and tighten two flare nuts (11).
(6) Install clamp (8) around capillary tube (10). Install bolt (7) and new self locking nut (6).
(7) Secure each capillary tube (10) with tie down strap (9) as shown.
(8) Push wire leads (3) through grommet (14) and into dual pressure control switch (5). Using tags and wiring
diagram (fig. 2-4), install wire leads and secure with two screws (4). Remove tags.
(9) Install cover (2) and tighten screw (1).
(10) Adjust HIGH PRESSure CUTOUT to 305, low pressure CUT IN to 0, and low pressure CUTOUT to 15 IN.
VAC.
NOTE
FOLLOW-ON MAINTENANCE:
Install battery (para 4-35).
Replace dehydrator (para 5-17).
Leak check (para 5-13), evacuate (para 5-14), and charge (para 5-15) the refrigeration system.
Close left side door.
5-37. HEAT EXCHANGER REPLACEMENT .
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Insulation Tape
Refrigeration system discharged (para 5-10) and
6, Appendix E
purged (para 5-11).
Evaporator coil removed (para 5-39).
a. Removal.
(1) Remove insulation (1) as necessary.
NOTE
Note flow direction prior to removal.
(2) Purge (para 5-11) and de-braze (para 5-12) four fittings (2) and remove heat exchanger (3).
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