DIGGER DERRICK
1-58
463280 - 9/14 Terex South Dakota, Inc. Digger Derrick
OPERATION GUIDELINES
When using the Digger Derrick as an insulated aerial platform, the following conditions must be maintained:
1. The fiberglass section must be fully extended with a current dielectric test in accordance with ANSI
A10.31.
2. The fiberglass section must be dry, clean, and free of damage.
3. The load line shall be removed from the boom tip and stored on the winch drum.
4. The fiberglass section shall not be brought into contact with or in proximity to an electrically charged or
energized conductor.
5. The lower and intermediate boom sections or the components mounted on them shall not be brought
into contact with or in proximity to an electrically charged or energized conductor. Maintain minimum
approach distance.
6. Do not operate boom controls while standing on the ground or other structures to prevent electrocution if
the vehicle or Digger Derrick becomes energized.
7. Never operate from the ground controls with personnel in the platform if working on structures containing
energized components. Operation must be controlled by the platform operator, except in case of an
emergency.
8. All ground personnel must be warned to stay away from the vehicle prior to lifting the boom assembly
out of the boom rest. Ground personnel must not make contact with the vehicle or any apparatus that is
attached to the vehicle until the boom assembly has been returned to the boom rest. This may be
accomplished by barricading the vehicle.
9. All electrically charged or energized conductors in proximity to the work area must be properly covered
or de-energized.
10. Ground and/or barricade the vehicle per OSHA, ANSI and your company policies.
11. Electricity is an ever-present danger when using a Digger Derrick. Follow all OSHA, ANSI, state, federal
and company rules and regulations when working on or near energized power lines.
12. Never touch the controls or boom tip area when in the platform without using proper protection (wear
rubber gloves with leather protectors) while holding any conductors, neutrals, grounds, or other
structures.
13. Operator(s) must wear an OSHA approved fall arrest system with a lanyard attached to the anchor(s)
provided.
14. Wear personal protective equipment such as: Insulated hard hat, rubber gloves with leather protectors,
and rubber sleeves. Hearing and eye protection, proper boots and suitable clothing may also be
required. Follow OSHA and employer’s policies for fire retardant (FR) clothing and arc flash protection.
15. 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.
16. Do not allow ground personnel under the platform work area.
17. Do not move the vehicle with personnel in the platform.
Violation of any of the following conditions can result in serious injury or death.
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