TM 9-4120-378-14
5.27 COMPRESSOR. - continued
Remarks
Action
Location/ltem
Decontamina-
NOTE
tion
An unused dehydrator or other suit-
Continued
able medium may be used as a filter.
The other end of the temporary suction line should
j.
be connected to a small drum or suitable reservoir.
Aline should be run from the bottom of the reservoir
k.
to the inlet of the pump.
Avoid inhaling fumes and burns from
any acid formed by burnout of oil and
refrigerant. Wear a gas mask if area is
not thoroughly ventilated. Wear pro-
tective goggles or glasses to protect
eyes. Wear rubber gloves to protect
hands.
l.
Fill reservoir with fluorocarbon refrigerant R-11 and
start the pump. Continue filling the reservoir with
refrigerant R-11 until it begins to pour out of the re-
turn line. Continue flushing for at least 15 minutes.
m. Reverse the pump connections, replace the filter
with a new filtering medium, and back-flush the sys-
tem for an additional 15 minutes.
n.
Remove the pump, reservoir, filter, and dehydrator
jumper. Place an empty container below the com-
pressor connections, and connect a cylinder of dry
nitrogen to each filter-drier connection in turn. Blow
down each leg of the system at 50 psig (3.5 kg/cm2)
for at least 30 seconds.
o.
Disconnect the dry nitrogen cylinder. Cap or plug
open connections if compressor and filter-drier are
not to be installed immediately.
Repair/Wiring
a.
Remove the insulation to expose 1/2 inch (1.27 cm)
of bare wire on each side of break or damaged in-
sulation.
b.
Insert the ends into a splice-connector: splice and
crimp the connector to make firm electrical contact.
5-82
