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TM5-4120-376-14
5-21. CHARGING VALVES, PRESSURE SWITCHES, LIQUID RECEIVER, SIGHT INDICATOR,
PRESSURE RELIEF VALVES/Replaee
T h i s T a s k c o v e r s:
a. Removal
b. Replace
c. Installation
INITIAL SETUP
NOTE
Replace maintenance function is done by Removal/Installation Maintenance
Tasks.
NOTE
All maintenance functions for tubing and fittings are covered by Brazing and
Debrazing discussed in paragraphs 5-9 and 5-10.
Disconnect Power
Tools
TOOL KIT (SC 5180-90-CL-N18)
LOCATION/ITEM
CHARGING VALVES/PRESSURE SWITCHES/SIGHT INDICATOR/PRESSURE RELIEF VALVES
Removal:
1. Remove eight screws (1) and access cover (2) to valve charging box from housing.
WARNING
Purge system with dry nitrogen prior to soldering” Refrigerant heated to
1200° F (649°C) creates phosegene gas.
NOTE
Leak check fittings. Always perform inspections, adjustments
removing refrigerant components.
and test before
5-49
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