TM 9-4110-258-13
5.33 DUAL PRESSURE CONTROL SWITCH S2 REPLACEMENT. - Continued
(8) Push two wire leads (3) into dual pressure control switch (5) and using tags and wiring diagram (fig. 1-4),
install wire leads and 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:
Replace dehydrator (para 5.15).
Leak check (para 5.11), evacuate (para 5.12), and charge (para 5.13) the refrigeration system.
Close right side door.
5.34
PRESSURE GAGE (LOW) REPLACEMENT.
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Lock Washers (3)
Refrigeration system discharged (para 5.8).
6, Appendix G
Left side door open.
Anti-Seize Tape
22, Appendix E
a. Removal.
(1) Remove three bolts (1), lock washers (2), and pressure gage (3) as far as copper tubing (4) will allow.
Discard lock washers.
(2) Loosen flare nut (4) and move copper tubing (4) over to one side being careful not to bend or kink tubing.
(3) Remove coupling (6).
b. Installation.
(1) Wrap anti-seize tape around pressure gage (3) connector threads.
(2) Install coupling (6).
(3) Aline copper tubing (4) and connect flare nut (5) to coupling (6).
(4) Install pressure gage (3), three new lock washers (2), and bolts (1).
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