Enerpac has a new lifting system for safer excavator maintenance. Based on Enerpac SCJ-Series cube jacks, the new system enables lifting and holding of the entire cab, boom, and arm, allowing the undercarriage to be safely removed.
During maintenance of the excavator's swing drive and bearings, the undercarriage unit must be separated from the upper body cab and arm to give access to the swing motor and multiple sets of planetary gears. Until now this would have involved at least two service engineers jacking up the body and holding it on stands.
The Enerpac cube jack lifting system offers a safer, CE-certified, approach to removing the undercarriage. It comprises two pairs of cube jacks providing coordinated hydraulic lifting of loads up to 25 tons per jack to a height of 6.5 feet. Two cube jacks are positioned under a lifting beam at the rear of the excavator, while two cube jacks are located under the arm's bucket lugs. Each pair of cube jacks are connected to a hydraulic pump to lift and lower the excavator body and arm.
The SCJ-Series cube jacks use a base lifting frame and self-aligning, lightweight steel cribbing blocks to provide high-capacity and stabilized lifting-offering a safer, controlled, and more efficient alternative to climbing jacks with wooden cribbing.
