Can someone tell me what these 3 lines are for?

[harleyman_1000]

 I need to know which one is the exhaust 

[treeplanter]

depends on left or right air motor for location on each motor, lines are run, park, and  exhaust.I have a diagram i can take a picture of if you need it.

[harleyman_1000]

depends on left or right air motor for location on each motor, lines are run, park, and  exhaust.I have a diagram i can take a picture of if you need it.

  Yes please send it to me, or post it here. Would I be right to assume that I can connect the line that connects to the end to either end then and it will work the same?

[treeplanter]

hope this gets you where you need to go.