Gear box temp

[Grandslam]

I just rebuilt the gear box on the mower deck of my F2680E Kubota. When I bought it the deck had been run with the center blade bearing down so seals and bearings all the way up the shaft were spent. So when I disassembled it I also found the beveled gear set showed uneven wear like it had been run out of alinement, So I also replaced the $ 500.00 beveled gear set. Got it all put together and rotated the input shaft of the gear box it felt a little stiff to turn but smooth. Got everything assembled and added gear oil 85-90 sae. After mowing about 15 min. I check the gear box it felt very warm no smoke but very warm. My question is this normal ? I also over filled a little and I noticed that a little oil was coming out the vent screw. The deck on this mower is model RCK72P-F36. Any advice would be greatly appreciated.

 

[Daren Todd]

Checking temp by touch isn't gonna tell you much. The gear box is gonna get hot. Best to check it with an infrared temp gun. It will give you a good base line to go by I would expect it to run around the same temps as a transmission. I run Lucas oil treatment which is the equivalent of pourable grease in my bush hog. Seems to run a little cooler then gear oil


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[85Hokie]

Checking temp by touch isn't gonna tell you much. The gear box is gonna get hot. Best to check it with an infrared temp gun. It will give you a good base line to go by I would expect it to run around the same temps as a transmission. I run Lucas oil treatment which is the equivalent of pourable grease in my bush hog. Seems to run a little cooler then gear oil


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I agree - the ol hand tells a lot - but best to put a real temp on it, those guns are cheap now - less than 20 bucks - worth their weight in gold !

 

[Daren Todd]

I agree - the ol hand tells a lot - but best to put a real temp on it, those guns are cheap now - less than 20 bucks - worth their weight in gold !

Yup, and you can check the temps on the towers too then you know for sure your repairs good and a bearing isn't binding


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