790 Brakes Overflowing/Overheating?

[Willl]

Originally Posted by RoyJackson

Hydraulic Fluid in your transmission.

Still don't follow ya Roy. How would hydraulic fluid come anywhere near the brake shoes and ooze out of the holes the OP was talking about ?

[irwin]

Originally Posted by DWCox

I pulled the brake covers yesterday and, interestingly, the seals behind brake shoes were fine. Evidently the excessive brake heat had turned the small amounts of grease behind the brake drum into liquid, where it mixed with brake dust at the bottom and flowed out the hole. So, I cleaned everything up real well, broke the glaze on the brake shoes and drums, and added small amounts of high temp grease where needed. It works find now.

Well okay, sounds good. Not very many complaints about the solid little 790.

Glad all's well....

[RoyJackson]

Originally Posted by Willl

Still don't follow ya Roy. How would hydraulic fluid come anywhere near the brake shoes and ooze out of the holes the OP was talking about ?

First post described fluid coming out of what appeared to be overflow holes on the rear axle. There are a couple holes back there (close to the transmission housing). The fluid could also have been coming out of the hydraulic tank and flowed down the casting...hard to say, really,without actually seeing it. But the only fluid in that area of the tractor is hydraulic fluid. BTW, the brakes on the 790 are inboard, just outboard the differential.
Of course, this could also be grease...but I'd never seen bearing grease get hot enough to get that liquidy.