TM 9-2320-269-10
DERRICK HYDRAULIC CONTROLS-OPERATOR'S CONSOLE - CONTINUED
Key
Control or Indicator
Function/Use
NOTE
The emergency power switch will not work if the key switch and emergency power switch on the cab
instrument panel are not turned on.
1
EMERGENCY POWER BUTTON
With key switch and emergency power switch in ON position at the
(RED)
truck cab instrument panel, you can push and hold the emergency
power button on the operator's console. This operates an electric
motor which drives a hydraulic pump if you lose engine power.
The emergency power system should only be used to bring down the
derrick leg, and put it in the stowed position, raise the outriggers, when
engine power is lost.
There are two emergency power buttons:
1. On operator's console (above).
2. Located next to the right side outrigger controls, and identified by
TA 222533
2-24