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White 5100 marker issues

S

StrongsOlivers

Member
So last night I was finishing up corn and I turned around and went set it back down and the marker on the right side wouldn't go down. Only the left. I thought the hydraulic switcher didn't change over so picked back up and set back down. Same thing. So I tried another 10 times and gave up and finished without the marker. I haven't messed with it since it rained this morning, so I'm looking for suggestions on were to look.
Thanks
Stan
 
Most likely the spool in the marker control valve is sticking or one of the two orifices in the spool is plugged. To disassemble the valve, first remove the two large hex plugs that are located side by side on the same surface, then the spring, large ball and small ball under each one. Note, trying to remove the spool before this step will damage the spool. Then remove the two other large plugs on the ends of the valve, the spool should move freely in it's bore. The spool has an two orifices drilled at a right angle to it's length. Check for foreign material. Re-assemble in the reverse order. Spool needs to move freely in it's bore prior to check balls installation. You can call me at five seven four, two four three, five seven five one if you need to.
 
I ended up taking it out and I found that the oil wouldn't drain out the right side of the spool. So i pulled the spring and balls out and found a little spec of dirt,
then i washed everything in diesel. So I put new o-rings on everything and reassembled. And it started working again.
 
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