Increased power capability

Cummins Inc. highlighted its new Tier 4 Interim QSB3.3 engine at ConExpo-Con/Agg. The company says the engine has an increased power capability to 120 horsepower, one of the highest in the industry for an engine of its size, representing an 11-percent increase in power output above the current Tier 3 engine. According to the company, the power increase is made possible by the more-efficient combustion realized by the aftertreatment simplicity of the Cummins Compact Catalyst, specifically developed to meet EPA Tier 4 Interim emissions taking effect Jan. 1, 2012. The catalyst is less than 20 inches long and removes particulate matter by oxidation with simple exhaust flow-through operation.

Backup mechanical locks

The new JRB PowerLatch was on display in Paladin Construction Group’s booth at the show. The unit features backup mechanical locks on both the front and rear attachment pins that are independent of the machine’s hydraulic locking and operating system. The ABS mechanical backup safety system automatically locks both pins so coupler engagement is maintained, even if a hydraulic failure occurs. Attachments can only be removed under operator control when they are in a safe, curled position.