3-line attachments to a 2-line machine.

[mikweb]

I have a 2002 773G that has only 2 hydraulic connections and 1 power connector. I would like to run some 3-line attachments but do not know what is needed for the 3rd hydraulic line. Any help would be appreciated.

 

[mikweb]

Can you just not attach the small third hose from the attachment and the attachment will work? I am new to this and would appreciate some insight on how to plumb the needed 3rd line to the machine.

 

[laurencen]

what are you trying to run on the machine

 

[Robanybody]

The third line is meant to be a case drain for attachments. The drain just goes to tank so I don't see a problem with plumbing in a third line to handle that low pressure oil. There is a danger of blowing out motor shaft seals on and auger or other attachments without a place for that oil to go.

 

[RedNeckMike]

Because it is low pressure it may be easy to pipe a new line back to your hydrualic oil tank. Then you know you are safe.

 

[laurencen]

if it was as simple as a Tee in the return line the attachment manufacturer would have done it, the return line when the attachment is running will have more pressure than a case drain line, I would not Tee it in but its not my machine

better run a line to the hydraulic tank