What speed should my spinner discs be turning at?
Your spinner discs should be turning at 850RPM (at 35 litres/minute at 2000psi). This can be easily measured with a tachometer. These are available from our parts department if you need one. Or any local mechanic.
When standing at the back of the machine, the right-hand spinner disc should turn clockwise and the left-hand spinner disc anti-clockwise.