Understanding power beyond circuit

[Builder]

Mine has 3 lines. Why not just 2? (One supply, one return?) 2 of them have quick connects, one does not. The one that does not is looped to one of the remaining 2 with the quick connects. What's the deal? The tractor once had a backhoe on it. Are 2 feeds necessary to run a subframe mounted backhoe?

 

[kennyd]

On most CUT's when the backhoe is mounted the 3PH is bypassed, so there is a extra return that goes directly to the tank.

 

[Builder]

My 3ph is not bypassed and functioning normally. The rockshaft has its' own hydraulic line running to it.

 

[kennyd]

My 3ph is not bypassed and functioning normally. The rockshaft has its' own hydraulic line running to it.

It's only bypassed when the backhoe is mounted.

 

[Builder]

It's only bypassed when the backhoe is mounted.

Is that the reason for 3 circuits? When the backhoe is installed one is backhoe supply, one is backhoe return and the 3rd is the one is the 3pt hitch return?

 

[kennyd]

Is that the reason for 3 circuits? When the backhoe is installed one is backhoe supply, one is backhoe return and the 3rd is the one is the 3pt hitch return?

Yes, I kind of eluded to that in my first reply...there are TWO returns, one feeds the 3PH (what your "loop" is connected to now) and the other bypasses the 3PH and goes directly to the tank. Not positive your machine is this way-but a lot of CUT's are.

 

[deepNdirt]

On most CUT's when the backhoe is mounted the 3PH is bypassed, so there is a extra return that goes directly to the tank.

Yup! What -->kennyd Said<--,

 

[Builder]

Any uses for this loop of flowing hydraulic fluid other than a backhoe?

 

[Scotty370]

deepNdirt- About KennyD, I was the first to say : "Even when he thinks he's wrong, he's right!" ~Scotty

 

[kennyd]

Any uses for this loop of flowing hydraulic fluid other than a backhoe?

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