Case/David Brown 990 selectamatic

singletree · Sep 19, 2019

Hello, After re-assembleind ramshaft and control valve, the knob that selects , depth, height and TCS won't switch out of TCU. Any helpful ideas? Thanks ,Steve

singletree · Sep 19, 2019

OK, I used a screw driver to put pressure on the bottom of the height control push rod and it popped upwards back into place, all is working now. I hope. Had had it all out and cleaned with a solvent, I guess after it laid dry for a day or two it was just stuck also, I bumped it a little trying to get it back into the case. That is a challenge doing it by hand and, a great way to grow roids. Steve.

Adirondack case guy · Sep 19, 2019

You do have to pull the white quadrant control lever all the way back compressing the
spring, and then shift from TCU, to Draft, to position control. -------Loren

singletree · Sep 19, 2019

Sir, Thank you for the reply. Yes I pulled the lever all the way to the rear far enough to defeat the spring that comes into play near the end of the levers full motion. I was surprised when that did not release the selector knob. However I pulled the lever all the way to the end of its travel and while holding it there , I used a screw driver to put just a little pressure upward on the height push rod. When I applied just a bit of pressure on the bottom of the height rod , it jumped upwards. I don't know, a burr or a bit of foreign matter maybe. In any case the selector knob will shift through all selections, as it should. Thans, Steve

Case/David Brown 990 selectamatic

singletree

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Adirondack case guy

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