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Southeast Florida | That's something you need a pressure gauge to figure out. We did this years ago with the old 9000 series Steiger's and JD's and found that the lube pressure would start dropping around 1,600 RPM's. This is also when we found coming up a headland with a load the Steiger's would cavitate if they weren't filled to the full mark with the engine running about 1,200 RPM's. They did 4 things in one day that one of or a combination of all 4 solved the transmission failures.
1 Drained out the Hytran water and replaced it with TO-4 spec SAE 30 Power Shift transmission oil
2 Fill it to full with the engine running @ 1,200 RPM's
3 Turned up the charge pressure to 280-320 PSI
4 Threatened to take a Louisville Slugger to somebody's head if they run the engines under a load at low RPM's.
Something worked because transmission failures went from 3-5K hours to 20-30K hours.
The other thing we quit destroying was the flex coupling because the tractors were started by the maintenance crews at 1,200+ RPM's. They didn't have the driveline chatter anymore and the flex coupling didn't get the splines beat out of them. When the flex coupling came apart after that there was a 99% chance that a motor or transmission mount was bad somewhere.
Edited by Fla Veggie Farmer 7/6/2012 17:18
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How many hrs is too many on track tractors?
