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Have a 2555 deere with syncro tranny tractor. has just

Have a 2555 John deere...
Have a 2555 John deere with syncro tranny tractor. has just started acting up with hyd system. It will work fairly well then all of a sudden zero hydraulics. No steering, 3pt, or loader movement. No chattering or other noises. Then it may start working again for a bit for a half minute like normal.. Then nothing again. What can be the issue? Valve someplace known to stick?
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1/16/2018
Curtis B.
Curtis B., Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 31,896
Experience: Technican turned service manager on multiple lines of equipment and rental equipment.
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Hi,let's see if we can work together to get to the root of your problem! will try my best to help!

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If the pump drive off the front crankshaft pulley was bad or stripped, I doubt that it would come back, just lose all hydraulics, But it does have a flow control valve that could be sticking See link below. The valve can stick or springs can be broken.

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Ask Your Own Agriculture and Farm Equipment Question
Customer reply replied 7 months ago
Ok. I'll check that tomorrow. Just in case, is there other valves that can cause the issue?

Valve in the pump, or this one shown.

Curtis B.
Curtis B., Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 31,896
Experience: Technican turned service manager on multiple lines of equipment and rental equipment.
Verified
Curtis B. and 87 other Agriculture and Farm Equipment Specialists are ready to help you
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Customer reply replied 7 months ago
The valve in the pump, is it on top of the front pump cover or the bottom? The other valve was pretty and clean and spring was good and pushes in and out smoothly.
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Customer reply replied 7 months ago
Thanks!!

Thank you.

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