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 TM 9-4120-430-14
0054 00
WARNING
Ensure power source is disconnected. Ensure refrigerant
system is discharged.
INSPECT
Check valve and tubing for damage.
REMOVAL
1.
Remove screw (1), flat washer (2), and clamp (3) that secure the pressure relief valve (4) to the fan housing (6). See
figure 1.
2.
Debraze the pressure relief valve (4) from threaded female fitting (5) and remove valve from unit.
INSTALLATION
NOTE
It may be necessary to replace the female threaded fitting along with a new pressure relief valve.
1.
Install the threaded relief valve into the female threaded fitting (5). Braze and seal the connection sealing the
pressure relief valve (4) to the female threaded fitting. (See WP 0046 00).
2
Install clamp (3), flat washer (2), and screw (1) that secure the pressure relief valve (4) to the fan housing (6).
3.
Replace filter-drier (see WP 0051 00).
4.
Leak test refrigeration system (see WP 0047 00).
5.
Evacuate refrigeration system (see WP 0048 00).
6.
Charge refrigeration system (see WP 0049 00).
7.
Install top cover (see WP 0018 00).
0054 00-2
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