Rotary Cutter Changing oil

[Buddycat68]

I want to change the oil in my brush hog I think it's an international brand but not sure but I do know it's not a ihc brand. It has a large plug at the top and another small one a little over half way down. My question is what plug to I fill to. Also is 85w-140 gear oil good to use?

 

[Plas62]

I just bought a Brush Hog Razor Back and the plugs on the gear box are similar to what you describe on your unit.

When the dealer dropped it off I asked him about filling the gearbox and he told me that when they fill them they put the brushhog on a level surface, remove the plug halfway down the gearbox casing, remove the top plug and fill with gear oil from the top plug until the gear oil reaches the bottom level of the lower hole in the gearbox and then replace both plugs. I didn't ask him what type of gear oil they used.

You want to google an owners manual for a unit similar to yours and that will probably give you the information on the type of gear oil to buy.

 

[Buddycat68]

Ok thanks I know mine isn't a brush hog because it doesn't have the same gear box on it and I have seen some in the past that said international and they looked identical to mine. Also what would be a good way to get all the oil out and flush the box out?

 

[thatguy]

i took the easier route and pulled the top of the gear box off (4 bolts) for easier access...

On my JD brand i used amsoil severe-gear 75w90

on mine the plug in the middle is the full line...

brian

 

[Tractor Seabee]

Unless the oil is dirty or has metal particles in it, why change it. In that service there is rally no source of contaminants except internal wear.

Ron

 

[Buddycat68]

It has set out all of its life and it had a few small pieces of metal in it when I changed it along with a little bit of water.

 

[Poopdeck Pappy]

As Plas said, you fill from the top. When the oil starts coming out the plug hole on the side of the gearbox, it's full.

I've used these to pump oil out of a gearbox. Multi-Use Transfer Pump

They are cheap enough to use them and then throw them away when you're done. Or, you can spend more money and buy a real oil extractor that will work better and last longer. E.g., something like this: Pneumatic Oil Extractor