TM 55-1730-229-12
AG 320A0-OMM-000
TO 35C2-3-473-1
TM 1730-12/1
RADIO INTERFERENCE SUPPRESSION
Section VII.
control
(3) Shielded
PROPER SUPPRESSION. Essentially, sup-
unit and battery charger.
pression is attained by providing a
low resistance path to ground for
(4) Filter unit installed on gen-
stray currents.
The methods used in-
erator.
clude shielding the ignition and high-
frequency wires, grounding the frame
(5) Welded one-piece frame and
with bonding straps, and using filtering
housing assembly with latching access
systems.
door.
SUPPRESSION
COM-
PONENTS.
(6) Ground stud on frame to ground
via ground strap.
a. Primary Suppression Components.
The primary suppression components are
those whose primary function is to sup-
b. Secondary Suppression Compo-
press radio interference. These compo-
These components have radio
nents.
interference suppression functions which
nents include:
are incidental or secondary to their
(1) Bonding straps to frame.
They are the lock-
primary function.
washers used on the fuel pump, elec-
(2) Shielded ignition unit and
tronic control unit, generator control
unit, and battery charger.
ignition wire to igniter plug.
MAINTENANCE OF FRAME AND HOUSING
Section VIII.
flapper (11) is attached to the roof,
which is opened by exhaust gas from the
a. Frame and Housinq Components.
exhaust ejector when the engine is
started.
The frame and housing (figures 1-1 and
1-6) consists of a frame (one-piece
shields)
(and
welded), panels (welded to frame), lift-
c. Covers. Covers
ing eyes, covers, access doors, battery
are shown in figures 4-5 and 4-6.
holddown, exhaust ejector assembly, air
cleaner assembly, ground stud, and drain
d. Access Doors. There are seven
access doors plus an exhaust flapper,
hoses/lines.
Construction. The frame
b. Frame
is constructed of steel channel pieces
(1) Control panel access door
(rear of AGPU).
welded together to form a unitized, one-
piece assembly. Steel panels are welded
to the frame assembly to form the hous-
(2) Electrical trays access door
ing. Four lifting eyes (6, figure 4-5)
(right upper rear of AGPU).
are attached to the frame assembly. A
roof assembly (2) is attached to the
(3) Battery access door (right
lower rear of AGPU).
housing by four latches (1). An exhaust
