MikeW Posted December 4, 2016 Report Share Posted December 4, 2016 Hi all, I have just bought a wrag post driver for the bobcat e45 digger and have been trying it out today. it runs through a valve block on the knocker through the double acting circuit. When I have the aux flow on low the weight doesn't come down quick enough but on medium (2) it seems fine but the controls are a bit savage. It says in the digger book it has a return to tank valve but I don't seem to have one. I was just wondering how you ran yours and whether or not you need a free flow return and or will it do any damage to the machine like it is? Thanks Mike Quote Link to comment Share on other sites More sharing options...
wfencing Posted December 4, 2016 Report Share Posted December 4, 2016 My last bobcat had a free flow return lever but e45 like yours does not. Dealer says ok . My protech on digger has no valve block just straight to ram and with proportional control works smoothly Quote Link to comment Share on other sites More sharing options...
Goaty Posted December 5, 2016 Report Share Posted December 5, 2016 Id prefer a free flow, unnessary friction and heating of the oil and pressurising of components not a good idea although diggers are intended to jackhammer, it's known to be a stressor and wears them out. Shouldn't be too expensive or hard to retro fit a free flow. Don't forgot to oversize the return pipe bore. Quote Link to comment Share on other sites More sharing options...
MikeW Posted December 5, 2016 Author Report Share Posted December 5, 2016 I have spoken to bobcat today and they say it has an automatic to tank valve as it is a later model so they said if I use the right auxiliary setting its all ok. Thanks for your help Mike Quote Link to comment Share on other sites More sharing options...
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