Atco Groundsman cone clutch

[sten 84]

Hi, can anyone tell me if the cone clutch on an Atco Groundsman is supposed to have a lining of some sort or is it metal to metal, thank you.

[Wristpin 399]

Metal to metal. We used to see the odd one that had been over lubricated and the cast cone and cup had absorbed some excess oil which then leached out when the clutch warmed up resulting in repeated bouts of slippage. Various cures were tried including dunking in petrol and cooking with a blow torch (not simultaneously!) , some more successful than others.

[sten 84]

Thanks Wristpin, so is it supposed to have some lubrication or left dry

[Wristpin 399]

From memory there is a small screw that is removed to add a couple of drops of oil to aid the cone in sliding on the shaft and that it was over enthusiastic oiling that led to the excess being thrown around inside the cup but the actual friction faces should be left dry.

[sten 84]

ok, thank you

[Wristpin 399]

Memory was a bit adrift the screw is in the cup not the cone . Part R73  on the attached parts illustration.

https://www.dropbox.com/s/eaawvwohiw2yscx/Atco%20Groundsman%20Clutch0002.pdf?dl=0