It does appear to be a high pressure side leak or otherwise return oil through the ported trans filter should almost keep up with front pump demand.
There doesn't seem to be any sort of check valves in the low pressure circuit from the transmission pump. And up to the front oil reservoir. Just a pressure control valve bolted to side of the trans case. And the relief valve that slides into a bore in the transmission case.
Is one of those stuck with dirt or ice?
Does this tractor have one or two pto mechanical levers on the left side of the trans case?
Looks like the high flow trans pump subs back for the older and low flow pumps.
TRANSMISSION OIL PUMP AND OIL LINES™BR>(LESS HI-LO SHIFT OR LESS REVERSER)
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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