TM 9-4940-568-20
5-5
(4) MAIN POWER SWITCH. The main
power switch allows electrical power
from the FRS 24 VDC system to power
up the crane’s electrical circuits. This
switch also serves as a circuit breaker
to prevent damage to the crane’s
electrical system in the event of a short
circuit.
(5) SHUTDOWN RELAY. The shutdown
relay is located in the junction box and
relays a signal from the remote control
emergency stop switch to cut power to
the manual override valve. This will
cause all hydraulic fluid to be blocked
from entering the crane’s hydraulic
system.
MAIN POWER
SWITCH
SHUTDOWN
RELAY
JUNCTION
BOX
