operation and extends the usable life of the vehicle. When you are operating the bucket, safety of operation should be your prime concern. Although the bucket is insulated, all personnel should maintain a constant awareness of the hazards of operating in and around high-voltage power lines.
Another high-production piece of line equipment is the earth auger. This truck-mounted unit, as shown in figure 4-39, is designed to dig holes up to 7 feet deep and comes with different sizes of auger bits to enable you to vary the diameter of the hole. The auger truck usually has a winch attached that enables it to be used to set poles and other attachments that allow it to install some types of guying anchors. These features are normally used when a framing crew is assigned with the auger truck. They install all line hardware on the pole before they set it in place (except when the hardware is too heavy) and place the anchors. This method is used when long power lines are being constructed. It requires less pole time for the linemen and enables them to devote more time to stringing conductors, installing the line equipment, and making connections on the poles.
There are many different types of manual lifting equipment used in line work. Some of the various types and uses of manual lifting equipment are discussed in the paragraphs below.
The pole gin, as shown in figure 4-40, is designed for temporary attachment to a pole. It provides a secure point for attaching other lifting equipment, such as a block and tackle used in lifting heavy objects, for mounting on the pole. Transformers, capacitors, regulators, heavy lighting fixtures, and heavy crossarms are a few examples of the types of equipment that may be lifted by using the pole gin.
When you are lifting a distribution transformer, it should be handled carefully. Bushings and other equipment on the transformer can be damaged easily. The windings of the transformer may be damaged if the
Figure 4-39. - Earth auger.Continue Reading