TM 3-6665-209-35
8. Remove four nuts (21) and
corrected.
Make certain all
screws (22) which secure the
markings on the front panel are
terminal board TB2 (20) to the
legible. Repaint if necessary.
valve mounting bracket (15) and
(h) Apply 115 volts A.C. to the solenoid
remove the terminal board.
valves L1 and L4.
Each valve
(y) Front panel and related parts.
should close when current is
1. Remove four nuts (61, fig. 4),
applied.
lockwashers (62), and screws
(i) Apply 115 volts A.C. to the solenoid
(51) which secure the bracket
valves L2 and L3.
Each valve
(30) to the chassis base (31).
should open when current is
Remove the front panel with its
applied.
attaching parts from the chassis
(j) Check the pressure gage setting.
base.
The gage pointer should be on zero
2. Remove
two
nuts
(49),
of the graduated scale.
If
lockwashers (50), and screws
necessary, adjust in accordance
(53) from each panel guide
with paragraph 23b(4).
bracket (23) and remove both
(k) Check the length of the test valve
the panel guide brackets and
spring.
It should measure three
the brackets (30) from the front
quarters of an inch.
panel.
(3) Assembly and installation.
3. Remove the screws (26) and
(a) Front panel and related parts.
lockwashers (25) from each
1. Install two panel handles (19,
panel handle (19) and remove
the two handles from the front
3) and secure each handle in
panel.
place with two lockwashers (25,
(2) Cleaning and inspection.
fig. 4) and screws (26).
(a) Clean all parts with dry-cleaning
2. Position a bracket (30) and a
solvent and wipe dry with a clean,
panel guide bracket (23) on
dry cloth.
each side of the front panel and
(b) Check all wires for broken or
secure each set of brackets in
cracked insulation.
If wire is
place with two screws (53),
damaged or there is doubt as to its
lockwashers (50), and nuts (49).
condition, replace the wire.
3. Position the front panel with its
(c) Inspect all copper tubes for dents
related parts on the chassis
and cracks. If tubes are damaged in
base (31) and secure each
any way, replace the tubes.
bracket (30) to the chassis base
(d) Inspect the rubber tubes, washers,
with
two
screws
(51),
and grommets for breaks and
lockwashers (62), and nuts (61).
deterioration. Replace them if there
(b) Solenoid valves and related parts.
is any evidence of damage.
1. Position the terminal b ard TB2
o
(e) Inspect the terminals of the switches
(20, fig. 11) on the valve
and terminal boards for good
mounting bracket (15) and
electrical conductivity.
secure it in place with four
(f) Inspect
the
threads
of
all
screws (22) and nuts (21).
components for burrs or other
2. Screw the filter mounting flange
damage. If threads are damaged on
(5) with the filter FL1 (6), the
nuts, screws, or pipe fittings, replace
filter holder (7), and the adapter
the damaged item. If threads are
(11) into the solenoid valve L2
damaged on such components as
(4).
solenoid valves, retap the threaded
holes.
Note
(g) Check the front panel, the chassis
base, and the brackets for burrs,
Before installing the flange or any
bends, and distortion.
Replace
other threaded pipe connection,
them if their condition cannot be
apply
AGO 8069A
26
