This section provides
maintenance instructions for the control
Battery power (24 vdc) may be pre-
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
when engine is running.
and instruments are described briefly in
and instruments is described relative to
To prevent shock hazard, flash
system functions controlled or monitored as
burns, or equipment damage, observe the
following precautions for all control panel
Shut down engine and disconnect
battery before opening control panel, or con-
tacting any electrical terminals with body or
Temporarily install control panel
AC 115 VAC 400HZ
before starting engine to verify corrective ac-
Open control panel access door (1,
Electrical components are identified by
for explanation of reference designators.
While holding control panel (2) in
place, remove four screws (3) and washers (4).
Carefully lift control panel and rest
lower edge of panel on ledge below panel.
Lower top of panel until panel is supported by
Remove battery charger access panel