Question about John Deere 420,1020,2010,2020,2510,2520 Tractor Float
Posted by Anonymous on
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Posted on Jan 02, 2017
There are 2 potential problems -
1. Leaking spool on the control valve - rebuild the vale.
2. Cylinder blow-by. Disassemble piston and replace the seals.
To test if its the cylinder - retract the cylinders all the way... remove the hoses on the blind end (non rod end) of each cylinder, and again pull the valve to the retract position.
If fluid continues to pour out of the cylinder - the piston seal is damaged, and the affected cylinder must be repaired.
To test if the valve spool is faulty - disconnect the a and b ports just after the valve. Turn on the system and check for seepage from the disconnected lines (without moving the lever).
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Posted on Apr 19, 2009
would say that your variable displacement pump has rust or other on/inside, it.
Are you using hydralic fluid (not eng oil) in her?
Can you let it run on blocks for a bit - drain and re-fill transmission?
Posted on Jul 02, 2009
If traction drive belt is turning you should check the input drive shaft on top of trans to see if it is turning as well,Traction drive belt is suspect but could be a stripped out input shaft pulley.Make sure the machine tow lever is not pulled out,rear of machine by tow hitch.Also pull rubber caps off of both axle ends to see if one the axles is turning free inside of rim,if so remove wheel and replace axle key.
Posted on Nov 15, 2009
Posted on Apr 07, 2010
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