R
rooster cogburn
Member
Hello have a 2007 case cx80 digger how do I make the hammer line work a single action ram as in a post driver. So the ram returns free
Thanks in advance
Thanks in advance
CPS
Well-known member
Put it into hammer mode
R
rooster cogburn
Member
Only a foot pedal pushed ram out but won’t let it back in
R
rooster cogburn
Member
Protech post driver
CPS
Well-known member
The pedal needs to be double acting to move the spool both ways, which then needs the hammer line return valve to be returned to tank
doobin
Well-known member
You won’t need single acting for a post knocker. Or direct return to tank.
Sounds like there is something funny going on. Single acting should work just fine when you ‘release’ it- think of a tractor linkage going down with gravity. Double acting just means you’ll load the (unused) other side of the digger pipework up momentarily when you release the ram, but it’s such a small ram that this dead ending is a momentary blip before the weight hits home.
Sounds like there is something funny going on. Single acting should work just fine when you ‘release’ it- think of a tractor linkage going down with gravity. Double acting just means you’ll load the (unused) other side of the digger pipework up momentarily when you release the ram, but it’s such a small ram that this dead ending is a momentary blip before the weight hits home.
Storrsy
Well-known member
There will be a tap or valve somewhere either near the hyd tank or main valve block. Turn that and it should go into single acting. As Doobin said it should still work in double but it's not very nice as the pump is deadheading on the drop phase
Storrsy
Well-known member
Trying to remember where it was on my 2007 case cx75 which is very similar to what you have, I never needed to swap it. Think there's a little door/hatch just to the left of your king post as you stand looking at the cab from the front. Have a look around there and see if you can see anything
CPS
Well-known member
As said, the pedal needs to be double acting or it wont move the spool
Regy53
I like cake
give Ian at Southern Plant Solutions a call thats litrally his game, he can convert for you. let him know ross sent you
CPS
Well-known member
Your in Co Down, im interested tyrone, call me on 07762626325 if you like
R
rooster cogburn
Member
Hello yes I believe there might be a valve that might let the ram free flo back into tank when ever the pedal is released. I might try and locate this later in week. I only ever had a hammer on it once so I take it the oil just pumps one way and then up the return.
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