DIGGER DERRICK
1-18
463280 - 9/14 Terex South Dakota, Inc. Digger Derrick
OPERATION GUIDELINES
JOB SITE SURVEY
Before positioning the vehicle to work, perform a complete survey of the job site. During the survey, look for
items including the following:
1. Ambient conditions including temperature.
2. Consider the slope of the ground:
• Unit is tested on maximum 5 degree ground slope as a personnel lift.
• Lift capacity is reduced if not level for material handling.
3. Determine if the ground is firm enough to support the Digger Derrick. If the ground is not firm enough,
use pads under the outriggers and crib as needed to distribute the load.
4. If the vehicle must be parked on a slope, always keep the boom on the uphill side, chock the wheels,
and work off the rear of the vehicle.
5. If unit has one set of outriggers, evaluate the tire contact area. All tires and axle suspension springs
must be equally loaded prior to setting the outriggers.
6. Look for ditches, drop-offs, holes, debris, and overhead utility and power lines.
7. If grass or other combustible materials will be underneath when the vehicle is setup, follow company
policies to prevent a fire.
8. Underground Utilities, such as sewer and water lines, electrical lines, gas lines, and other lines. If
digging is to be done, mark the location of all utilities. Call your local “Call Before You Dig” hotline or the
National hotline (888) 258-0808 or 811 if available to have all underground utilities marked before
digging.
9. Determine the vehicle position needed to accomplish the work safely. If it is not safe to proceed use
another method or setup.
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