APPENDIX B
Appendix B Terex South Dakota, Inc. B-7
APPENDIX - B
10. RESPONSIBILITIES OF OPERATORS
10.1 General Responsibilities. Each operator shall comply with the requirements of this section.
10.2 Personnel. Only trained and authorized personnel shall be permitted to operate the digger derrick.
Depending on their use, digger derricks may be defined as a crane by government regulations, and
operator’s certification may be required.
10.3 Operation. When operating the digger derrick from the lower controls, the operator shall stand or sit at
the control station provided. Operation of the lower controls from any position other than designated control
stations shall not be permitted. Remote controls shall be used such that the operator is not placed in the
electrical path between the unit and the ground.
During operation of the digger derrick, all platform occupants shall use appropriate fall protection equipment
connected to the digger derrick anchorage(s).
Operation of a digger derrick with platform occupant(s) requires the use of capacities different from those of
the rated load capacity chart for the digger derrick. When operating a digger derrick with occupied
platform(s) and simultaneously using material handling components, operation shall be in accordance with
requirements for combined use (see 4.5.3).
NOTE: Winch ropes are not insulating.
When operating a digger derrick with the platform occupied, it shall not be used for digging holes, setting
screw anchors or handling poles. When the platform is occupied, the winch line of the digger derrick shall
only be used for raising or lowering equipment to the worker’s position and material handling shall be limited
in accordance with the manufacturer’s load capacity chart provided for combined use. Combined platform
and material handling load shall not exceed 3,000 pounds.
When operating a digger derrick with a platform but no top controls, the operator shall not leave the lower
controls unattended when personnel are aloft in the platform.
10.4 Work Platform. The operator shall not use railings, planks, ladders or any other device in or on the
work platform for achieving additional working height or reach.
10.5 Brakes. The vehicle parking brake(s) shall be set at all times that the boom is elevated.
10.6 Loading. Any loading which includes a horizontal load shall be avoided unless the mobile unit is
designed for that application.
10.7 Alterations. Altering or disabling the function of safety devices, guards or interlocks, if so equipped, is
prohibited.
10.8 Observations. Observations during operation for any defects shall be conducted on an ongoing basis.
10.8.1 Pre-Start Inspection. Items determined by the owner in accordance with the manufacturer’s
recommendations for each specific digger derrick shall be inspected for defects prior to each day’s
operation. The operator shall perform the following tests and inspections once daily, prior to first use:
(1) Conduct walk around visual inspection looking for damaged components, cracks or corrosion,
excessive wear and any loose deformed or missing bolts, pins fasteners, locking devices and
covers.
(2) Check all controls and associated mechanisms for proper operation to include, but not limited
to, the following:
(a.) Proper operation of interlocks.
(b.) Controls return to neutral when released and not sticking.
(c.) Control functions and operation clearly marked.
(3) Check visual and audible safety devices for proper operation.
(4) Visually inspect fiberglass and insulating components for visible damage and contamination.
(5) Check for missing or illegible operational and instructional markings.
(6) Check hydraulic and pneumatic systems for observable deterioration and excessive leakage.
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