Brush Hog Lube

8N_John · Nov 21, 2004

Just got an old brush hog. Unscrewed a square bolt to check for oil and didn't see any. Not sure how much oil to add and what type of oil? It is a Ford 951 5' brush hog. Looks like there is a small hole below and to the right of the bolt where oil has come out of in the past...is that the fill line?

DK35vince · Nov 21, 2004

( Looks like there is a small hole below and to the right of the bolt where oil has come out of in the past...is that the fill line? )

Yes.
Put gear oil (85/90 or 85/140 or similar) into the top hole till it comes out the bottom/fill line hole.
When it starts to come out the fill line hole the gearbox is full.
Try not to overfill by to much or you run the chance of pushing a seal out when the gearbox gets hot..

Soundguy · Nov 22, 2004

Good advice from Dk.

Soundguy

have_blue · Nov 24, 2004

I'll add that the top plug is often not just a plain plug, but has a venting mechanism. This allows pressure to escape without blowing the seals.

Soundguy · Nov 24, 2004

Yep.. But I've seen cheap ones that used a simple fixed plug.. and I've also seen a vent cap plug up.. so try not to count on it.. or at least service the vent cap in a can of mineran spirits to clean it, when you do your annual tractor maintenance..

Soundguy

8N_John · Jan 5, 2005

How do you drain old oil out of the thing? Soundguy you have a 951, correct?

Holzster · Jan 5, 2005

I have a question also on this line - I hope it does not change for your question. I have a extra Trans/hydro fluid left from when i changed my fluids last month. Can i put that in there or should i stick to Lube oil? as i just do not want to store the 1/8 fill 5 gal bucket of Hydro. fluid.

Bird · Jan 5, 2005

Hydraulic fluid is a very thin oil compared to gear oil, so personally, I would not consider using it in a brush hog gear box.

Holzster · Jan 5, 2005

Bird

thats what I thought but who knows as I am now where near as smart as ya'll are!! I'll just keeo it around I guess

Bird · Jan 5, 2005

( I am now where near as smart as ya'll are )

I just really doubt that, but we've maybe had a little different life experiences and knowledge in different areas. /forums/images/graemlins/wink.gif