**Paper copies of solutions may not be the most current solutions**
Complaint or Symptom :
Rockshaft is stuck in the raised position.
Problem or Situation :
The Rockshaft Control Valve has stuck as the result of corrosion on the spool inside the valve.
Solution :
To prevent the Rockshaft Control Valve from sticking, apply TY25744 grease into the Discharge Valve per the following procedures.
Tools needed:
1 - 5mm Allen key
1 - 17mm Wrench
1 - 13mm Wrench
1 - Flat Tip Screw Driver
1. Remove the seat assembly. (On the 03's its two 18mm, and you will have to slide the seat to find the hole in the seat frame to access the bolt, I have not had to do an 05.. its same valve on both tractors.)
2. Remove the three (3) M6 Allen head screws. Firmly grab tee handle and pull straight out, removing rate-of-drop valve assembly from Rockshaft Control Valve.
(They should be 5mm.)
3. Remove the Discharge valve from the Control Valve body. Use of a screwdriver may be required. (The picture below shows the valve housing removed from the tractor.. I have not had to remove one.. yet..)
4. Once the Discharge valve is removed from the Control Valve body, inspect the condition of the O-rings and washers. Ensure free movement of the Poppet valve in the spool body.
5. Using a 17mm wrench, remove the Discharge Cap from the Control Valve body. (Once you take the cap off, the spring will come out. The spool will probably be stuck. You will have to push it out from the other end. If you look in the spool housing you will probably see a very small about of rust. It takes very little for it to stick.)
6. If Discharge Valve Poppet is rusty, then clean with a fine emery cloth. Clean the parts. Apply TY25744 grease into the Discharge Valve and, reassemble.
7. Install the Discharge valve into the Control Valve. Follow reverse procedure for assembly of the Control Valve.
Some of the instructions have you removing the valve housing from the tractor. (the two 13mm headed bolts.) but I have never had to remove one... yet..)
I cut and pasted some pics from various places... some from the manuals.. some from some JD solutions... (All of the pics are John Deere Reference materials, the instructions are my modified version.. )
This should get you going.. let me know if you have any problems...
Bryan