Timber trailer pto pump/gearbox

[valcat]

Was running Botex 560 crane with pto pump running on 540. Now changed tractor now with only 1000 pto. Even at engine idle (370 rpm on pto )crane moves fast and pump/gearbox is noisy. Gearbox ratio is 3:1 so that pump is now spinning fast. Spoke to Wilsons who said run pto at 450rpm.

Thinking this set up is going to overheat the pump especially with summer approaching. Does anyone know of a pto gearbox supplier at 1:1 ratio or is happily running a botex off the tractor hydraulics. TIA

[doobin]

Good chance that a large modern tractor (1000 PTO only) will have plenty enough hydraulic flow. WIll only cost you half an hour and a pair of hydraulic fittings to find out.

[gdh]

What tractor is it on? Most newer tractors should run fine off the spools.

[valcat]

Its a valtra t190 2006 so not so modern. Rated at 91ltrs min at 2100 rpm with max pressure 190bar at 1500 rpm when it was new. The pto pump set up pulled 210bar at about 900 rpm on my old tractor so running on new tractor system it will be down abit for those big lifts.

I do like the extra crane speed and engine at tickover  but I don't think the pump will last.

[doobin]

That's modern by Arb standards. I'd give it a go.