Question about John Deere 420,1020,2010,2020,2510,2520 Tractor Float
Have a 455, love it bought it used. Tractor will not lift mower deck. When changing out the snow plow, a sizeable amount of fluid leaked out. How do I check the level and fill as needed. What fluid should I use? Thank you
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
I would suggest you find a JD dealer and buy a manual if you want to do the maintenance yourself. You can also do a Google search and find manuals.
I would also suggest you completely drain the old hydraulic fluid and replace it with new fluid and a new filter if it has not been serviced any time in the recent past.
The symptoms you describe can be low fluid and/or a clogged filter. If you or anyone else has run the tractor too long and it has low fluids and/or a clogged filter, you can damage the hydraulic pump and that can get costly.
Posted on May 01, 2009
SOURCE: john deere 316 belt
I am so far from expert...me answering this surprises me. However, I can...JD Small Engines has plenty of diagrams for the 316. Here's how a old single lady changes the belt on her 85 316. There is a bolt running from side to side of a black metal box...on the very front at the bottom of the mower below the grill. If you pull that out, just the front of the mower deck separates from the mower..slip the belt in and around the rear central pulley. Put the pin back in with the belt now around the back pulley and outside the part where the pin goes back in. Get a pneumatic tire jack and jack up the right (your left as you face the front of the machine) front pulley..try to catch the pulley armature or bolt so you don't torque the pulley. This releases the tensioner...thread the belt on the right pulley and reach up under the grill and put the belt over the front engine pulley....now all that's left is to get the belt over the left pulley. At this point, I remember having to either lower the deck to the ground or raise it up all the way...to the ground, I think as it wasn't already in the correct position. Once you start fussing with the left pulley, you will see it is spring loaded and easy to force the belt over if the right pulley is still on the jack. Really important to get the belt inside all the belt guides and lowering the deck before you frustrate yourself with getting the belt over the last pulley. When all is done, release the jack and everything tightens right up.
Posted on Jun 10, 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
I have found the manual at JD's website. Click the link and scroll down in the left column until you find the heading for replacing the belt. I contains big, clear photos. Here is the link:
You can copy it into your browser window or type it in. I sure hope this helps you out. If I can be of any further assistance, please let me know:)
Posted on Aug 21, 2010
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