DIGGER DERRICK
1-10
463280 - 9/14 Terex South Dakota, Inc. Digger Derrick
OPERATION GUIDELINES
CONTROLS BELOW ROTATION
Control locations and function varies depending on purchaser’s requirements and options. Some of the
following control functions may not be included in the controls for this Digger Derrick. Refer to the control
decals on unit for proper operation.
ITEM CONTROL DESCRIPTION
1. Outrigger Controls Allows extending and retracting of outriggers.
2. Hydraulic Tools (Optional) Directs oil flow to the tool when connected to the quick couplers.
3. Two-speed Throttle (Optional)
Auxiliary Let Down
(Optional)
Two-speed throttle provides two engine speeds, low and high, with
engine running. Low speed is engine idle.
Auxiliary let down power provides hydraulic power to lower and stow
the Digger Derrick in the event of a prime power source failure.
4. Engine Stop/Start (Optional) Allows operator to stop and start engine.
5. Selector A selector valve that allows operation of boom functions when in the
“UP" position and operation of the outriggers when in the “DOWN"
position.
The Selector will function as an emergency stop by taking oil
flow away from the active controls.
6. Hydraulic Tool Couplers
(Optional)
Quick couplers for hydraulic tool connection.
The decals are an integral part of this Digger Derrick. If the decals are missing or
illegible, they must be replaced.
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