Terex Digger Derrick User Manual

DIGGER DERRICK
-X
463280 - 9/14 Terex South Dakota, Inc. Digger Derrick
SAFETY
ELECTRICITY OBEYS NO LAW, BUT ITS OWN.
1. Electricity is an ever-present danger when using a Digger Derrick and working from a platform. Follow all
OSHA, ANSI, state, federal and company rules and regulations when working on or near energized
power lines.
2. Always maintain proper clearance from energized power lines. A Digger Derrick cannot protect you from
phase-to-phase or phase-to-ground contact, which occurs above the insulating boom section when
operating from the platform:
• Allow for sag, sway or rocking.
• If any part of boom-tip, contacts an energized conductor, the entire boom-tip, including the control
handle(s), must be considered energized.
• If any part of the boom-tip, contacts a grounded object the entire boom-tip including the control
handle(s) must be considered grounded.
3. The boom and operators shall be properly insulated from any contact with electrical conductors;
including neutral or ground lines, poles, cross arms, and guy wires. Utilize proper insulation such as line
covers, rubber blankets and hot line tools.
4. Never place booms, platforms, or personnel between energized conductors or between an energized
conductor and a grounded conductor without proper cover up.
5. Digger/auger must be in the stored position when personnel are in the platform.
6. Never operate the Digger Derrick in an electrical environment unless the unit has been properly
maintained with frequent and periodic inspections and a current annual dielectric test. When the
fiberglass boom components are contaminated by moisture, dirt, or improperly maintained the dielectric
protection will be compromised.
7. Never allow ground personnel to come in contact with the Digger Derrick, vehicle or vehicle attachments
while in operation near energized power lines.
8. When working on or near energized power lines or equipment, the vehicle must be grounded and/or
barricaded according to your employer’s policies and considered energized.
9. Never rely on the fiberglass platform for insulation. The platform may contain small unseen cracks that
will allow an electrical path into the platform. Follow your employer’s policies for use of a platform liner.
10. Never touch the controls or boom tip area when in the platform without proper protection (insulating
gloves), while contacting any conductors, neutrals, grounds or other structures.
11. Ground personnel must wear insulating gloves if they may contact load line, load, auger, or screw
anchor attachments while boom is in area of electrical wires.
12. Do not increase the chance of accidental contact when working on or near energized structures or
power lines, defeating the purpose of the liner:
• All tools, accessories and other objects must be contained within the platform.
• Do not attach any metal objects from outside the platform to the inside of the platform.
• Do not hang metal objects from the lip of the platform. This includes extension cords, guy wires or
conductors.
13. Fiberglass boom section shall be fully extended when using personnel platform on or near energized
power lines.
14. The load line must be considered conductive.
ELECTRICAL DANGERS

Terex Digger Derrick Specifications

General

Brand	Terex
Model	Digger Derrick
Category	Trucks
Language	English