Posted by wnettles on September 24, 2017 at 14:56:49 from (73.53.134.17):
I have a 1947 John Deere M tractor (my grandfather's) and the rockshaft will not move when I pull up on the Touch O Matic control lever. It worked for the last 70 years or so, but, now it will not lift.
Plenty of oil in the sump, good pressure out of the pump, but, no lift. Took the front case cover off of the control valve housing and inspected all the linkages for a missing pin, but, everything is in place.
Manually worked to rockshaft arms up and down and the control valve is getting the mechanical feedback signal via the rod from the rockshaft. What could be the problem and where to look next?
Never had to take one of these apart..... Guess there is first time for everything. Any suggestions or tribal knowledge would be much appreciated.
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Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
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