Brothers Noel and Ger Hickey from County Waterford, Ireland, have designed a retrofit system for vacuum-type slurry tankers that swaps the pto drive for a hydraulic motor.
Installation involves bolting a 10mm thick baseplate between the existing vacuum pump and tanker chassis, before slotting in a hydraulic motor that provides the necessary rotational force required to replace the original mechanical pto drive.
The easy-to-fit system requires just 40 litres/minute oil flow, so can be powered by almost any tractor regardless of age or specification.
Some clever hydraulic plumbing and valve work allow for a soft-start function to protect the vacuum pump and gearbox, and also avoid damaging the components by accidentally driving it in reverse.
Higher spec options include electronic monitoring of vacuum pump speed and electro-hydraulic control.