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| How are you controlling the speed of the vac motor? If the vac. motor does not require much flow make sure you have the flow control on the tractor set down pretty slow- just enough flow so that it does not slow down the vac motor during normal operation. I ran a Hyd motor on a 4020 years back that would always run up near the red on the hyd temp guage until I set the flow control slower under the hood. It is an older style 4020 that did not have flow control at the couplers | |
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