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Page Title:
PRESSURE REGULATOR. |
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 TM5-4120-383-14
PRESSURE REGULATOR.
The pressure regulator is located in the rear (compressor/
condenser) compartment just below the actuating cylinder. The
pressure regulator is factory set at 68 psig and sealed so that it
is not field adjustable.
a.
Removal.
(See fig. 5-13.)
(1) Disconnect power at power source.
(2) Remove top front and rear covers (para 4-11).
(3) Discharge and purge refrigeration system per paragraphs
5-11 and 5-12.
(4) Remove screw, lock washer, clamp, and post spacer.
(5) Debraze two tube connections and remove pressure
regulator.
b.
Replace.
If pressure regulator is suspected bad replace it.
c.
Installation.
(1) Slip pressure regulator in place.
(2) Protect pressure regulator from overheating during
brazing operations. Direct flame away from valve body and wrap
valve body with a wet rag.
(3) Braze two joints in accordance with paragraph 5-13.
(See para 5-30.)
(4) Replace dehydrator.
(5) Leak test newly connected joints and all connections in
the area.
(6) Secure pressure regulator with a screw, lock washer,
clamp and post spacer.
(7) Install top front and rear covers (para 4-11).
(8) Evacuate and charge the refrigeration system in
accordance with paragraphs 5-15 and 5-16.
5-56
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