DIGGER DERRICK
1-11
Digger Derrick Terex South Dakota, Inc. 463280 - 9/14
OPERATION GUIDELINES
CONTROLS BELOW ROTATION FUNCTIONS
NOTE: *Can be included with two-speed throttle circuit. When vehicle engine is disabled, the
auxiliary let down power can be activated by the two-speed throttle switch.
NOTE: *Do not operate longer than 30 seconds. Continuous operation will drain battery and/or
overheat pump motor.
Outrigger Controls Pull “UP” to raise outrigger.
Push “DOWN” to lower outrigger.
Hydraulic Tools
(Optional)
Push “DOWN” to enable tool circuit.
Pull “UP” to disengage.
Selector Outrigger are operational when the controls are in the
outrigger position.
Pull “UP” to enable boom functions.
Push “DOWN” to enable outriggers.
The Selector will function as an emergency stop by taking
oil flow away from the active controls.
Engine Stop/Start
(Optional)
Can be used to stop vehicle engine in an emergency.
Push and hold to crank vehicle engine.
Push and release to stop engine.
Two-speed Throttle
(Optional)
Push and release to increase engine RPM to preset high
speed.
Push and release to return engine RPM to idle speed.
*Auxiliary Let Down
Power
(Optional)
Push and hold to engage auxiliary lowering system.
Used when vehicle engine is not operable.
Do not use to operate Digger Derrick continuously.
Unit may be equipped with vehicle winches, capstan drives, and lower tool outlets.
Use of these options while boom is elevated near energized components exposes
ground personnel to death or serious injury due to electrocution if vehicle
becomes energized. Follow your company policies for use of this equipment.
4
4
7
6
1
1
O/R
DOWN
UP
ENGINE
STOP/START
PUSH
444253
2-SPEED
THROTTLE
PUSH
444254
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