DIGGER DERRICK
1-55
Digger Derrick Terex South Dakota, Inc. 463280 - 9/14
OPERATION GUIDELINES
AERIAL OPERATION
A manual or hydraulic fiberglass third section is available on insulated digger derricks. The Digger Derrick
may be equipped with single or dual fiberglass personnel platforms with brackets for attaching to the 3rd
boom. Controls to operate the equipment from the platform are required when working on structures with
energized components.
For use in aerial operations, the Digger Derrick must be manufactured and tested for use with a platform as
an aerial. This must be indicated on the ID Placard in the areas shown below.
PLATFORM CAPACITY ON ID PLATE
LIFT LOCK CONTROL HANDLE
Individual control levers at the upper controls will have lift lock handles for the boom functions. Single stick
controls are equipped with an enable feature.
A spring-loaded lift lock on each boom function locks the boom control lever in a neutral position and
prevents accidental actuation. A control lever placard indicates the direction to move the control lever to
activate a specific boom movement. To activate a boom movement, the control lever must be lifted "UP" and
held, so the control lever can operate the desired boom function. When the handle is released, the control
handle will return to the neutral position and the lift lock will re-engage.
LIFT LOCK
Number of platforms
Total capacity all platforms
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