How to Use Hydraulic Tools to Work on Live Power Lines

Lineworker using tools in bucket truck

When it comes to operating tools on a bucket truck, lineworkers can use either battery-powered tools or hydraulic tools depending on what job needs to be done. Battery-powered tools are becoming popular with line crews who maintain and repair live electrical power lines, however, there are several cases when crews will want to opt for hydraulic tools instead of battery-powered tools.

For example, tools including long-reach chainsaws, tampers, ground-rod drivers, and pole pullers work best on a hydraulic system. The amount of overall energy and run time needed to use these tools is not available from a battery.

Here are a few tips for using hydraulic power tools on the jobsite:

Hydraulic power tools must be equipped with orange nonconductive hoses to prevent cross-phase or energizing the boom tip while working near energized power lines.
In the bucket, all covers must be in place and hydraulic couplers must not be exposed where they can contact a power line.
Users should be aware that hydraulic oil is flammable and can catch fire if an arc occurs.
Most bucket trucks are equipped with wire-reinforced hoses on reels for use at the ground because this type of hose is more durable. For this reason, there must be an insulating section – often called a ‘whip hose’ – between the tool and the wire-braided hose from the truck to keep the worker isolated from the vehicle to reduce the chance of tool operator electrocution if the vehicle or boom become energized.
There are two types of hydraulic systems: open center and closed center. The type of hydraulic system used by the tool must match the truck otherwise the hydraulic system and tool will overheat.

The tools and tool hoses, like all other components of a bucket truck, must be inspected before each use for leaks and damage and to ensure proper operation.

Hydraulic tools, in combination with battery-powered tools, may be the best of both worlds based on the job requirements. Both battery-powered and hydraulic tools can provide reliable solutions that can help crews finish their daily tasks efficiently. It is always best to consult with an employer’s work practices and preferences before making the decision about using hydraulic or battery-powered tools on the job site.  