DIGGER DERRICK
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463280 - 9/14 Terex South Dakota, Inc. Digger Derrick
OPERATION GUIDELINES
POSITION THE DIGGER DERRICK TO AVOID DRAGGING THE LOAD
Lifting speeds can be controlled with the engine throttle and by metering the control valve. Slow speeds
should be used on all heavy loads or when working in close quarters. For smooth operation, start and stop
with low engine speed.
ROTATE BOOM TO THE LOAD, TO AVOID SIDE STRAINS
INTERMEDIATE SECTION (SECOND SECTION)
The second section extension is used for positioning loads and keeping the digger/auger vertical when
digging holes. It can also be used for plumbing poles by extending or retracting.
Use extreme care when extending the second section while handling loads. The vehicle can become
unstable if the second section is extended to a larger radius with load.
Do not exceed values shown on the load capacity chart for boom position.
When the second section is moved out of fully retracted position, use extended load from load chart.
HYDRAULIC UPPER BOOM (FIBERGLASS THIRD SECTION)
The fiberglass third section is used to position loads and has provisions for attaching a platform for aerial
work. Do not assume the fiberglass has any insulating value when lifting loads.
When the third section is moved out of the fully retracted position, use the third extended load from the load
chart.
Do not exceed the winch line capacity, which can result in serious injury or death.
Do not use the winch, lift cylinder, or extension cylinder to lift loads that are in
excess of the load capacity chart value for the boom position. This can overload
and cause damage to component parts, which can result in serious injury or death.
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