Case 580K Rear Wheel Bearing Grease

BackhoeOwner · Feb 22, 2020

Hi

I'm not sure how much grease is supposed to go into the zerks on the transaxle/wheel bearings. On joints it is easy to tell because you can see some coming out and know when to stop. What is the best way to know how much to put into the rear wheel bearings?

Coy Lancaster · Feb 23, 2020

My rule of thumb is about five shots of grease every week or so depending on usage. You got to remember the axle is hollow and sealed on both ends but it is possible to push outer seal out (but not likely) if you over grease it.

BackhoeOwner · Feb 23, 2020

Ok great thanks Coy. That's actually what I did yesterday and then stopped not knowing how much to put in there.

Looking at the service manual, it looks like the inside bearing is behind a seal and lubricated by the transaxle's own fluid, but the outboard bearing is lubricated by the zerk/grease, with the outboard seal retaining the grease. So, eventually, does that whole housing just fill up with grease from regular service? Seems kind of odd to have it trapped in there and must make for a mess eventually.

Coy Lancaster · Feb 25, 2020

BackhoeOwner said:
Ok great thanks Coy. That's actually what I did yesterday and then stopped not knowing how much to put in there.

Looking at the service manual, it looks like the inside bearing is behind a seal and lubricated by the transaxle's own fluid, but the outboard bearing is lubricated by the zerk/grease, with the outboard seal retaining the grease. So, eventually, does that whole housing just fill up with grease from regular service? Seems kind of odd to have it trapped in there and must make for a mess eventually.

That's why you don't grease it that often

Case 580K Rear Wheel Bearing Grease

BackhoeOwner

Member

Coy Lancaster

Senior Member

BackhoeOwner

Member

Coy Lancaster

Senior Member