Largeish Hydraulic Press Build

Back relief right off, hold lever and dead head cylinder, wind up relief till amp draw is at whats on the motors ID plate....as long as the pressure is still lower that the max working pressure of the pump/cylinder/valve/hoses. You mite be able to fudge it up a tad, go easy tho.


If the motor slows now, my guess is that the HP input required by the pump is significantly higher that the motors 5HP rating. You should be able to hear the relief going off (squealing) before this stage.


Looking at the thermometer on the wall that tells me its only 13 deg inside.....Cooktown sounds good about now!

Thanks Rick and Dave

Ill rustle up a clamp meter and see what is what with cylinder dead headed

Dave tell me more about pump slip... I cannot see how a gear pump can slip. If it is turning it is forcing fluid. If the head pressure is too high I guess it just makes heat?

Rick what is a fridgy doing in a town as cold as yours - just put the milk out on the porch! You do need to come north ;)

Steve

milk on the porch would work in about a month or so, have had a spoon freeze into a cup of water sitting on the sink overnite before....-11 that nite!

In Tamworth , I can beleive that.
Pulled over there once for a sleep one night. Nearly froze to death, and nearly fried on a sumer day.

Actually this winter was quite mild as such. No frozen/busted pipes that pump 5000L of water into the laundry while I'm at work....1st for a few years :D

Quote:

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Originally Posted by Rick1970

Actually this winter was quite mild as such. No frozen/busted pipes that pump 5000L of water into the laundry while I'm at work....1st for a few years :D

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Hello Rick,

It has been a couple of years since the last posting of your press. Just wondering if you have done anything more than split wood with it? Do you use it for pressing panels or the like? Or just basic stuff like pressing out bushes on Land Rover leaf springs?

Was there a thread on AULRO where someone made a 55 ton press? Or was it another site? Hmmm, I best keep looking - it is raining here anyway - and it is Sunday!

P.S. Found it! Accessed June 19th, 2016 from http://www.aulro.com/afvb/projects-t...ml#post1735573. The thread has been inactive for quite a long while.

Kind Regards
Lionel

Lionel
Press is used regularly
Pressing bushes and bearings etc
I have also made up some specific dies for certain jobs such as forming dies for 50x6mm 316ss saddles
I made up a shoe for pressing off the beads on tyres welded on a bracket to hold a manual tyre changer frame is sturdy enough to support easy changes of tyres
I also made up a press brake attachment using commercial bending dies up to 1200mm wide
Nearly finished fabricating a rotary draw bender that via a lever uses the ram to rotate dies to bend tube and pipe

It's perhaps my favourite bit of metal in the shed

Steve