Question about John Deere Seat 310a 310b 401 401b 401c 401d At20490
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
make shure none of your hydrolic cylenders are extended and fill it up till you can stick you finger in there and it barley touches if you do this when cylenders are extended you will over fill it.
Posted on Jun 04, 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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