Rotary Cutter Bush hog

Soundguy · Nov 8, 2006

I've rebuilt a few boxes that I opened up that had a slug of grease slung out on the walls.. and the chewed up gears running in a hollow cavity...

Keep in mind that not all gear boxes generate the heat needed to liquify grease.

That's why a few oz of gear oil will get it nice and sticky.. that or just use a 0# grease anyway.. like a cornhead grease..e tc.

Soundguy

N80 · Nov 8, 2006

Bonehead question, but what if you literally pack it with grease? In other words, fill it up, run it, fill it some more, etc until there is no room for cavitation. Would that much grease start to cause a problem?

schmism · Nov 8, 2006

if its truely that full of grease i think you risk blowing a seal when it heats up....

Gizmo36 · Nov 8, 2006

I think I am going to use the cornhead grease .I have not made up my mind yet.Still looking at it all till my seals come in. The cornhead grease dose it need 140 oil mixed with it.or is it lose enough to stay in the gears.

schmism · Nov 8, 2006

Gizmo36 said:
The cornhead grease dose it need 140 oil mixed with it.or is it lose enough to stay in the gears.

its my understanding that "cornhead" grease IS #0 grease (or the wird spooge of thick but thin grease already)

so no it doesnt have to be mixed with 140

Soundguy · Nov 8, 2006

Gizmo36 said:
I think I am going to use the cornhead grease .I have not made up my mind yet.Still looking at it all till my seals come in. The cornhead grease dose it need 140 oil mixed with it.or is it lose enough to stay in the gears.

Cornhead can be used straight.. it's actually made for gearboxes.. and is a pourable grease.

As the other poster said.. packing a gearbox plum full of grease ( or oil ) will probably cause seal failure...

Soundguy

Scott in IN · Nov 8, 2006

I had the same problem with my auction bought Woods MD172 (bad lower seal). After much quandary and research, I said screw it and fixed it the right way by replacing the seal (which cost $5). The local Woods guy said that if you just use grease often the front bearings will crap out due to a lack of lubrication.

Soundguy · Nov 8, 2006

That's why you have to use a pourable grease.. so that it doesn't form a cavity around the moving parts. If no 0# grease is available.. then straight tube grease and a few oz of gear oil work great...

Soundguy