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TM5-4120-376-14
5-21. CHARGING VALVES, PRESSURE SWITCHES, LIQUID RECEIVER, SIGHT INDICATOR,
PRESSURE RELIEF VALVES/Replace (Cont)
LOCATION/ITEM
SIGHT INDICATOR
Installation:
CAUTION
Maintain a 1-2 cpm (0.1-0.2 M3 Min) flow of dry nitrogen through the
refrigeration system to prevent oxidation and scaling when brazing or debrazing
components.
1. Braze in accordance with paragraph 5-10, page 5-12 and 5-13.
2. Align sight indicator (6) and one clamp (5) with holes in housing
and two lock washers (4).
HIGH PRESSURE SWITCHES
and secure two screws (3)
CAUTION
Assure sampling tubing is reinstalled in proper location to prevent damaging.
3. Attach wires to appropriate terminals in accordance with Appendix E and remove tags.
4. Connect sampling tubing flare nut (6) and tighten.
5. Align pressure switches (5) with charging valve box (1) and secure with two screws (4).
6. Align charging valve box (5) with housing and secure charging valve box to housing with
four screws (3).
5-58
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