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 TM5-4120-384-14
5-25.
PRESSURE REGULATOR.-Continued
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
(4)
Replace
(See
(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) (Models F18H-3S and F18H-1S) Install three
top covers
(para 4-11). (Models F18H-3SA and F18H-3SB) Install
top cover
(8) Evacuate and charge the refrigeration
system
in
accordance with paragraphs 5-15 and 5-16.
5-26.
ACTUATING CYLINDER.
The actuating cylinder is
located
in
the
rear
condenser) compartment.
a.
Removal.
(See
(1)
Disconnect
power
at
power
source.
(2) (Models F18H-3S and F18H-1S) Remove all three top covers
(Models F18H-3SA and F18H-3SB) Remove top cover (para
(3) Discharge
and
purge
refrigeration
system
per
5-11 and 5-12.
(4) Disconnect refrigeration
tubing
from
actuating
cylinder
by
loosening flare nut.
(5) Loosen two screws holding pivot bracket. Remove center
screw, washers, pivot arm, and bearing insert from pivot bracket.
(6) Remove two nuts
and
flat
washers
and
slip
actuating
cylinder out of the unit.
Inspect actuating cylinder
for
defects
and
b.
Inspect/Replace.
broken or missing parts. Replace if defective.
5-57
Change 2
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