When Acker Drill Company set out to select a Final Tier 4 engine for its RENEGADE drill rig, engineer Joe Rochinski wanted it to be just the right fit.
Multipurpose drills from Acker Drill work in a wide variety of applications, including geotechnical drilling, environmental testing and mineral exploration. When traveling from one hole to another, the drill’s mast hydraulically lowers to a travel position — meaning that the exhaust components on the engine needed to fit within the drill profile.
"The drill frame lays down over the top of the machine while traveling, and having exhaust components on top of the engine doesn’t work for us," said Rochinski. "We wanted a diesel power unit with a special exhaust configuration to fit our track-mounted drill correctly."
In order to achieve this task, Rochinski called his John Deere engine distributor, Bell Power Systems. "Our account manager told us of an engine application already in production with a custom radiator package and exhaust components mounted on the side of the engine," he said. "It fit perfectly for us, so that was a big factor that made us say, ‘yeah, let’s go with this.’"
This "perfect fit" came in the form of a PowerTechä PWL 4.5L engine. It meets Final Tier 4/Stage IV emissions standards without requiring a diesel particulate filter (DPF). Plus, mounting the exhaust components alongside the engine reduced the height of the power unit.
"Collaboration between the Bell Power Systems and Acker Drill engineering teams resulted in an alternative power unit configuration, which fully complied with the drill’s design requirements and envelope restrictions," said Bill Rockelmann, account manager at Bell Power Systems.
The RENEGADE is Acker’s first drill rig driven by a John Deere Final Tier 4/Stage IV industrial engine, which powers hydraulics through a John Deere–manufactured Funkä Series triple pump drive.
Rochinski says operators report good field performance from the John Deere Final Tier 4/Stage IV engines.
"The engines start well in cold weather, rarely require a (forced) regen, and they deliver tons and tons of power," he said. "We are pleased with our choice.
Collaboration between the Bell Power Systems and Acker Drill engineering teams resulted in an alternative power unit configuration, which fully complied with the drill’s design requirements and envelope restrictions.