Bush Hog finish mower oil or grease in gear box?

[Mock1]

Um, not an expert, but by two cents. The rubber on the seal has gone hard due to no lubrication, or age. The shaft has a groove in it due to overuse. The wrong viscosity of lubricant has been used in service. Generally, at my work place, we up the viscosity of the lubricant if we need a quick fix . You really need to look at service life of the implement you are considering a repair on, or your pocket book. I think that if you need it to work for NOW then up the Viscous rating to keep leakage to a minimal. If you really want to know what's going on then you better role up your sleeves and tell your wife that you will be busy for awhile.

 

[brin]

I am going to use John Deere " Corn Head Grease " in my leaking PTO Generator Gear Box. I did some research and have posted a link below..go to that link and a little way down on the page there is a link marked HEREclick on that link and watch the video and see if you don't agree it is well worth a try to stop a small leak - not to mention Deere uses it as grease for life for some of their products that are sealed after mfg.

https://jdparts.deere.com/partsmkt/...alMultiPurpose.htm#_Special-purpose_corn_head

 

[easygo]

Thank you all who offered advice. I will fix the seal for sure but I have a couple of months before I have to start mowing. With the new seal I guess I will try to run 80-90W gear oil. If it leaks then there is time for the 00 grease.

Edit: Bob, That video is very convincing for sure. I would feel good if I happen to change my mind on the above described fix and just fill it with that grease.