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Page Title:
PRESSURE SWITCHES. |
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 TM5-4120-384-14
5-26.
ACTUATING CYLINDER.-Continued
Installation/Adjustment.
c.
(1) Secure actuating cylinder
to
bracket
with
two
nuts
and
washers. Do not tighten nuts.
(2) Install bearing insert pivot arm, washers, and screw
onto
pivot bracket. Tighten two bolts holding pivot bracket.
(3) Connect refrigeration
tubing
to
actuating
cylinder
and
tighten flare nut.
(4) Adjust condenser air discharge
louver
and
linkage
to
actuating cylinder per paragraph 4-17.
(5)
Replace
(See
(6) Leak
test
newly
connected
joints
and
all
connections
in
the
area.
(7) (Models F18H-3S F18H-1S) Install top three covers (para
(8) Evacuate and charge the refrigeration
system
in
accordance with paragraphs 5-15 and 5-16.
5-27.
The HIGH PRESSURE switch S4 and LOW PRESSURE switch S5 are located
on the front of the unit below the control module and junction box.
(See fig. 5-15.)
a.
Inspect.
(1)
Disconnect
power
at
power
source.
(2) Remove control module and junction box (para 4-21 and
4-26).
It is not necessary to totally remove all wire connections
and capillary line so long as the junction box can be pulled out
Support the
enough to gain access to the pressure switches.
junction box so that wires and capillary line are not damaged.
(3) (Models F18H-3S and F18H-1S) Remove front and rear top
covers (para 4-11). (Models F18H-3SA and F18H-3SB) Remove top
cover (para 4-11).
(4)
Inspect
pressure
switches
for
visible
signs
of
damage.
b.
Test.
(1)
Tag
and
disconnect
wires
to
pressure
switches.
5-59
Change 2
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