What are Digger Derricks?
Digger derricks are specialized pieces of equipment used in utility work for drilling holes and setting poles, typically in the construction and maintenance of electrical and telecommunications infrastructure. It combines the functions of a drill, a crane, and an auger, allowing workers to efficiently dig post holes and lift and place poles or other heavy objects. Digger derricks are mounted on trucks or tracked vehicles, providing mobility and versatility in various terrains.
Types
There are two general types of digger derricks; truck mounted and trailer mounted ones. Both of them have their own applications and benefits that you must know before using either in the field. Here’s a quick look at the two types of digger derricks and what they’re used for:
Truck Mounted
A truck-mounted digger derrick is mounted on a truck chassis, allowing for easy transportation to various job sites. It is equipped with a powerful boom and auger for drilling holes and setting poles, commonly used in utility and construction tasks. The mobility provided by the truck chassis enhances efficiency and access to remote or urban locations.
Trailer Mounted
Trailer-mounted digger derricks are designed to be towed by a vehicle, providing flexibility in transport without the need for a dedicated truck chassis. It features a boom and auger similar to the truck-mounted version, enabling efficient drilling and pole setting tasks. This is ideal for job sites where space is limited or where the digger derrick needs to be used with multiple vehicles.
Digger Derricks vs Cranes
While digger derricks and cranes are often confused with each other, they differ in their functions.
Digger derricks are designed for drilling holes and setting poles, while cranes are primarily used for lifting and moving heavy objects. This is because digger derricks are equipped with an auger for drilling and a boom for lifting, combining multiple functions into one piece of equipment, whereas cranes focus solely on lifting and positioning heavy loads.
Additionally, digger derricks are commonly used in utility and telecommunications work, while cranes are used in a broader range of construction and industrial applications.
Uses & Applications
Digger derricks are highly versatile tools that are necessities in certain sites. Here are some of the different ways teams use digger derricks in the field:
Pole Setting & Removal
Digger derricks are extensively used in the utility and telecommunications industries for setting and removing poles. Its boom and auger combination allows for efficient drilling of precise holes for pole installation, and the same boom can then lift and position the pole into place. For pole removal, the digger derrick’s lifting capabilities enable the safe extraction of poles from the ground.
Drilling
Digger derricks are equipped with augers that enable efficient drilling of holes for various purposes, such as installing utility poles, signs, or foundations. The auger can penetrate different soil types, making it versatile for use in diverse terrains. This drilling capability is essential for creating stable and precise holes quickly, reducing manual labor and time.
Lifting
Digger derricks are great at lifting, allowing them to hoist and position heavy objects, such as utility poles, transformers, and other equipment. The boom’s extendable arm and hydraulic system provide precise control, ensuring safe and accurate placement of heavy loads. This lifting function is crucial in utility maintenance and construction, where heavy lifting is a frequent requirement.
Safety Tips for Operating Digger Derricks
Like with other construction equipment, digger derricks come with unique sets of risks. It’s important for organizations to create and implement the right protocols and workflows to mitigate those risks. So, here are a few safety tips to keep in mind when operating these pieces of equipment:
Training & Certification
Ensuring that operators of digger derricks are properly trained and certified is crucial for safety. Training programs cover equipment operation, hazard recognition, and emergency procedures, equipping operators with the knowledge to handle the machinery safely and efficiently. Certification confirms that the operator meets industry standards and regulations, reducing the risk of accidents and enhancing overall workplace safety.
Inspections
Regular inspections of digger derricks are essential to identify and address potential mechanical issues before they lead to accidents. Inspections should include checking hydraulic systems, boom integrity, auger condition, and safety mechanisms to ensure everything is functioning correctly. Routine maintenance and prompt repair of any identified issues help maintain the equipment’s safety and reliability.
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Proper Set Up
Proper setup of the digger derrick is critical for safe operation. This includes stabilizing the equipment on a level surface, extending outriggers, and ensuring the area is free from underground utilities or other obstacles. Correct setup minimizes the risk of tipping, equipment failure, or unintentional contact with hazardous elements, providing a secure working environment.
Clear Communication Channels
Maintaining clear communication channels among all team members is vital for safe digger derrick operations. Using hand signals, radios, or other communication tools ensures that everyone is aware of ongoing tasks, potential hazards, and emergency procedures. Effective communication helps coordinate movements, avoid misunderstandings, and promptly address any safety concerns.
Follow Safety Standards
Adhering to established safety standards and regulations, such as those set by the US Occupational Safety and Health Administration (OSHA) or the American National Standards Institute (ANSI), is essential for the safe operation of digger derricks. These standards provide guidelines on equipment use, maintenance, Personal Protective Equipment (PPE), and operational procedures. Compliance with safety standards ensures a consistent approach to safety, minimizing the risk of accidents and injuries.
Additionally, using the right monitoring devices and asset management platform ensure that all necessary parts are in their right places, and that they’re working as intended. These also help manage compliance with safety standards, as they help organizations view their issues at a glance and address them instantly.
FAQs about Digger Derricks
The main components of a digger derrick include the following:
- the boom, which is used for lifting and positioning;
- the auger, which drills holes;
- the hydraulic system for power and control;
- the truck or trailer chassis for mobility; and
- the operator’s controls for precise maneuvering.
Digger derricks are commonly used in utility, telecommunications, and construction industries. They are essential for setting poles, installing signs, and performing tasks that require drilling and heavy lifting, especially in infrastructure projects.
Key safety regulations for operating a digger derrick include US OSHA and ANSI standards, which mandate operator training, regular equipment inspections, proper use of PPE, adherence to operational guidelines, and thorough documentation of maintenance and safety checks. While US standards are followed across different countries and localities, they may still have other standards to consider depending on their environment.
To ensure the safe operation of a digger derrick, organizations must conduct thorough training and certification, perform regular inspections and maintenance, set up equipment properly, maintain clear communication channels among team members, and strictly follow all relevant safety standards and regulations.
Leon Altomonte
