TM 55-1730-229-12
AG 320A0-OMM-000
TO 35C2-3-473-1
TM 1730-12/1
MAINTENANCE
OF
CONTROLS
AND
INSTRUMENTS
Section XVII.
This section provides
maintenance instructions for the control
Battery power (24 vdc) may be pre-
panel, figure 4-73, located at the rear of the
sent at terminals on back of control
AGPU. The controls and instruments are ar-
panel whenever battery is connected.
ranged in functional groups on front of con-
Ac power (115 vac) may be present
trol panel as shown in figure 4-74. All controls
when engine is running.
and instruments are described briefly in
and instruments is described relative to
To prevent shock hazard, flash
a.
system functions controlled or monitored as
burns, or equipment damage, observe the
follows:
following precautions for all control panel
maintenance:
Paragraph
Control/Instrument
Reference
Groun
Shut down engine and disconnect
(1)
battery before opening control panel, or con-
MASTER SWITCH
tacting any electrical terminals with body or
BATTERY 24VDC
tools.
DC 28VDC
GTE
LIGHTS
Temporarily install control panel
(2)
AC 115 VAC 400HZ
before starting engine to verify corrective ac-
PNEUMATIC
tion.
DRIVE
Open control panel access door (1,
b.
Electrical components are identified by
reference designators. Refer to paragraph 4-23
for explanation of reference designators.
While holding control panel (2) in
c.
place, remove four screws (3) and washers (4).
PREPARING CONTROL
PANEL
FOR MAINTENANCE.
Carefully lift control panel and rest
d.
lower edge of panel on ledge below panel.
Lower top of panel until panel is supported by
cable.
e.
Remove battery charger access panel
below control panel. Refer to paragraph 4-15.
Change 1
