It is also important to regularly check that the breaker and the carrier are properly adjusted. “Most hydraulic excavators allow the operator to adjust the hydraulic input to the breaker right from the cab,” Cadnum says. “It’s extremely important that the operator understands what setting is appropriate for that hydraulic attachment. If the setting is incorrect, it could damage the breaker.”

Graham adds that when a breaker is moved to a different machine, the carrier needs to be flow tested and properly adjusted for that breaker. “Otherwise, it can really reduce the life of the hydraulic seals inside the breaker. Anytime the breaker has been rebuilt — and annually, at a minimum — the carrier should also be flow tested and adjustments made as necessary.”

Proper storage is essential

Finally, at the end of the day, the breaker should be stored standing upright. This takes the weight of the piston off the seals. Storing in this position also helps to keep rain from getting into the vital areas of the breaker. The shiny surface of the piston is exposed when the breaker is not running, and if the breaker is lying flat, water can sit on the piston and cause it to rust. If it’s not feasible to stand it upright, the best alternative is to elevate the bracket end of the breaker that attaches to the machine. Place a tarp over the tool end of the breaker to protect it against the rain.

Breakers can be very expensive to repair. However, “if you’re doing your routine maintenance and operating the equipment correctly, you should be able to schedule repairs when you are ready,” Graham says. “The whole idea is to ‘pick your downtime.’”