Hi all,
Was using my Powerfab (1250) today for the last time before carrying out some general maintenance/hose replacements etc - was nearly finished digging another large pond for some friends locally.
Was just rotating the machine when I suddenly heard a 'crunching' noise and then all movement stopped and oil started spraying out from underneath. On first investigation I found two hoses sheared on the connector but then looking closer found the whole cylindrical component body buckled on it's mountings. In my ignorance I am not quite sure what this component is but believe it is part of the undercarriage drive system. I will try to attach a picture (looking down onto the component) and would really appreciate if the component can be identified and any initial thoughts as to how I can start to repair or where I can get prompt help whatever it may cost. The digger is now stranded and I will need to move it without delay. My first thoughts are to undo all the hose connections to the main arm and dismantle the arm from the machine to reduce weight (at the same time will look at pin repairs !) and then hopefully have a slightly more manageable beast to drag up onto my trailer to either take home to look at further or take to anyone who may be able to repair/service. Maybe it was a fatigue failure or something like a rock/stone got in and jammed things up.
Cheers and any help desperately appreciated.
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Not Slew(ing) motor- I think a Rotator is a more accurate name for it.
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No, I'm wrong again. In USA they're called track motor spools. Google the term and you'll find some YouTube videos explaining use.
On Wednesday, October 10, 2012, 125WTD wrote:
Not Slew(ing) motor- I think a Rotator is a more accurate name for it.
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The part is usually referred to as either a 'rotary junction' or 'rotary coupling' in the UK & is found in all 360s. Powerfab did not make this but at the time were buying from Kubota. Also they used Kubota slew ring & hydraulic slewing motor. A kit of seals & O rings exists for most of these junctions as failure is not unknown. There may be a part no on it somwhere. A hydraulics workshop may be able to rebuild it. Cautrac is one firm that can get Kubota & other jap parts inc for 'grey market' machines - ie those imported 2nd hand from Japan etc. Kubota is one of the few digger makers that will & do sell components to other makers, eg including Euromach.Before removing the part for repair I would buy some no stamps or an engraver so that all hoses can be re connected correctly (the part may have numbered ports allready). I would guess you have 7 hoses passing throu this part - 2 high pressure ones going to each track motor, a common small lower pressure hose acting as a drain from track motor seals - goes to neutral circuit or directly to hyd tank, & finally a pair of hoses to operate the blade. Important not to mix any up on reconnection - not least because blade goes to a 'ram spool' (valve) while motors go each to a 'motor spool'I have great difficulty signing in to this group (prob my old PC) but will help further if I can
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I have the same machine and am interested in any info / literature available.
Thanks,
Peter.