Case 831 3 point locked

Tedtex

Member
A new to me 831 has a loader that works fine but 3 point will not respond. The arms are in the lowered position. I can lift them by hand
with no resistance. When I let go they free fall drop back down. As I stand on the lower arms and move the control lever, I can feel and see
a very slight response but nothing more. Oil level is right on the mark. Is there a control to switch between 3 point and remote cylinder
operation? I did a search of this site and read where a small orifice ti drain the oil back to the reservoir can become clogged from lack of
use. Any suggestions to fix this?
 
In all likleyhood your lift plunger in the DOM valve is sludged up internally, It will require the side cover taken off the DOM valve on top above the right brake, disassembled and blown out, If you do this your self the internal needle you must remove to clean has a setting so when you take the lock screw out above it first bottom the screw and the count how far it took to bottom it so it can be reset to that dimension, 3/4 turn off it'seat rings in my mind but it's been years. Done many of them, most in the field on road service.
 
Yes, this is a DOM system. So the lock screw has the needle point on it and I should expect the setting to be about three-quarter turn back
from bottoming out the screw, but count the turns to be safe? Using an air jet, I need to blow out the tube that the needle covers. How much
oil if any should I expect upon removing the side cover? Thanks
 

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