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TM 5-4120-356-14
TS54120-356-14/4-17
REMOVAL OF SERVICE VALVES
REFER TO FIGURE 4-2 AND RELEASE REFRIGERANT FROM THE SYSTEM.
1.
2. REMOVE VALVE CAPS (1).
3. LOOSEN FLARE NUTS (4) AND REMOVE TUBING FROM SERVICE VALVES (5) AND (6).
4. REMOVE SCREW (2) AND WASHER (3) FROM EACH VALVE AND REMOVE VALVES FROM UNIT.
INSTALLATION OF SERVICE VALVES
1. POSITION SERVICE VALVES (5, 6) IN UNIT AND SECURE WITH SCREWS (2) AND WASHERS (3).
CAUTION
USE CARE IN APPLYING HIGH VACUUM GREASE
TO FLARE NUT FITTINGS SO THAT NONE OF THE
MATERIAL GETS INSIDE THE REFRIGERANT SYSTEM.
2. APPLY HIGH VACUUM GREASE NSN 9150-00-965-2408) OR EQUIVALENT TO THE SEATS OF FLARE NUTS
(4) AND CONNECT TUBING TO BOTH SERVICE VALVES (5, 6).
3. INSTALL VALVE CAPS (1) ON SERVICE VALVES (5, 6).
4. REFER TO PARAGRAPH 4-14h FOR FINAL STEPS IN MAINTENANCE OF THE SERVICE VALVES.
Figure 4-17. Removal and installation of service valves

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