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Blew up my logsplitter

Apparently, the Barnes 11GPM two stage pumps can pump a decent dead head. The limiter valve stuck in the spool valve and the pump bent a

1/2" thick stop plate, buttressed with 1/2" side plates at each end. Buckled the 6" H beam vertical web doing it. My welds held, though :). This is my homebrew logsplitter, 5HP Briggs, 4X24 cylinder. Gonna get around to posting it in the Dropbox some day. Anywho-the pump locked up at that point, stopping the Briggs cold in it's tracks. Autopsy this weekend. JR Dweller in the cellar
Reply to
JR North
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I would think that that 5hp would have stalled first but then again maybe not

Reply to
jeff

JR North fired this volley in news:OeqdnfqZ3t1J10vXnZ2dnUVZ snipped-for-privacy@posted.isomediainc:

I built one around the same pump, with an 8HP downdraft Briggs. It will slightly warp the 6x8 beam (not beyond its elastic limit), but will stall out before bending anything else. But, then, again, my stops, pushers, and buttresses are all made from 1" plate.

LLoyd

Reply to
Lloyd E. Sponenburgh

Having learned most of the hydrualics I know from my backhoe, I'd say that this supports the concept of an overpressure relief valve. Set properly, you can work the machine as hard as it was designed to work, but not break it when you latch onto something too big. Or in your case, when some part of the control system fails.

I have given thought to building a wedge to go on the end of the dipperstick, and using the bucket cylinder for a splitter ;-)

Reply to
Ecnerwal

When I replaced the pump on my logsplitter I added a gauge at the outlet to set and check the overload. 2500PSI will curve the beam but doesn't damage anything.

jsw

Reply to
Jim Wilkins

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