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Bush-Hogs For Dummies

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Richie Magoo

07-04-2002 11:28:00

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Hi Everybody.

Just recently got my first tractor and bush-hog(used). Went to check the earl (oil -I'm from NY originally)and when I opened the plug (top one) on the gear box, the oil started spurting out, as if it were under pressure. I just tightened the plug back up....as it was obvious there was oil in there! Now that the weather has gotten hotter, I just noticed that there's oil on top of the deck, which seems to have come from the aforementioned plug- My question: Why is there so much pressure in my gearbox, that it's pi....errr....uh....spurting out even through a closed plug??? Help!.....anybody?

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Scott in Ky

07-04-2002 19:05:40

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Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 11:28:00

The gearbox should have a vent in the top fill plug. That is to relieve pressure built up as the oil heats up and expands. Make sure the vent is not stopped up. Be sure it dosen't have too much oil. The oil level should be just even with the horizonal shaft in the gearbox. Grease might work in the gearbox but it would be better to use gear oil.

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JMS/MN

07-07-2002 19:58:44

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Re: Re: Bush-Hogs For Dummies in reply to Scott in Ky, 07-04-2002 19:05:40

The top plug on the gearbox should be a vent plug. You can make one by drilling about a 1/8" diameter hole in the pipe plug, insert a cotter key, bend it over. That relieves the pressure built up by heat of operating, wnd the key blocks water from getting into the gearbox.

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Richie Magoo

07-04-2002 20:18:56

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Re: Re: Bush-Hogs For Dummies in reply to Scott in Ky, 07-04-2002 19:05:40

Hey....a fellow Kentuckian!

THAT really sounds like my problem- a stopped up vent or too much oil- I will check it out tomorrow!

(I'm betting on a little of both!)

Thanks!

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gy3020

07-04-2002 18:09:06

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Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 11:28:00

The top most plug should be the fill plug and it should have another smaller plug about in the center of the gearbox to check it at. What brand of mower is it? When we bought a new Rhino several years ago we asked what weight oil too use and they told us to just pack that sucker full of gun grease. Thats what they used. WE, don't have the mower any longer but its just down the road and still going strong. Never had to add anymore grease too it as I recall. Hope this helps.
Gary

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Richie Magoo

07-04-2002 18:28:48

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Re: Re: Bush-Hogs For Dummies in reply to gy3020, 07-04-2002 18:09:06

Grease-gun grease, Ay? I may give that a try.

I dont think there is a plug midway down on mine (It's a TSC store brand- made by King Kutter, I beleive)- but even if there were, I'd be afraid to open it!....I mean, if it squirts out the TOP plug! I think I'll drain it, and grease it!

Thanks

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gy3020

07-04-2002 18:40:56

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Re: Re: Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 18:28:48

Hey man,
Thats the same one I have, only mine is the King Kutter paint job. Let me run out and look at it right quick and I'll get back with ya. Send me your email address adn I'll holler back at ya tonight or tommorrow.
Gary

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Richie Magoo

07-04-2002 18:46:00

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Re: Re: Re: Re: Bush-Hogs For Dummies in reply to gy3020, 07-04-2002 18:40:56

Hey....thanks Gary!

My email is: brorich@scrtc.com

I hope your oil doesn't squirt out!

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JDM Guy

07-04-2002 16:58:38

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Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 11:28:00

My bush hog did that, It was water. Was the oil a tanish color? You should just drain it and start out with fresh oil.

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Richie Magoo

07-04-2002 18:02:24

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Re: Re: Bush-Hogs For Dummies in reply to JDM Guy, 07-04-2002 16:58:38

No....wasn't tan- nice n' clear....doesnt seem like it's contaminated with water. I do intend to change it, though. Now for my next question: What type and weight oil????

(I still cant figure out why it seems pressurized though! That's a weird one!)

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Frank M.

07-04-2002 19:24:25

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Re: Re: Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 18:02:24

I have a theory about the gearbox having pressure in it. It could have to do with temperature changes. When the weather turns cold the contents (oil,water, air, etc.) of the gearbox contract This draws in air, and probably moisture, in past the seals, The seals are designed to keep stuff in but can let stuff pass through the other way. When the weather warms up the contents of the gearbox will expand causing the pressure.
That's my theory. If anyone has a better one I'd like to hear it.
Catch ya' later Frank M.

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Richie Magoo

07-04-2002 20:22:21

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Re: Re: Re: Re: Bush-Hogs For Dummies in reply to Frank M., 07-04-2002 19:24:25

Yes....because it didnt start spewing until the weather turned hot- that, in conjunction with what Scott said about a plugged vent, and possibly too much oil in there, is probably it!

Thanks Frank and everybody! I think my problem is solved!

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07-04-2002 11:32:04

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Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 11:28:00

There should be a check plug on the side of the gear box. take it out with the mower sitting level, and let the oil drain out till its even with the check plug.

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07-04-2002 11:31:08

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Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 11:28:00

There should be a check plug on the side of the gear box. take it out with the mower sitting level, and let the oil drain out till its even with the check plug.

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Frank M

07-04-2002 15:08:48

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Re: Re: Bush-Hogs For Dummies in reply to DP, 07-04-2002 11:31:08

It might have water in it. The oil will float on top of the water. I'd drain it completely and start with fresh gear lube

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07-04-2002 18:15:40

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Re: Re: Re: Bush-Hogs For Dummies in reply to Frank M, 07-04-2002 15:08:48

Drain and refill with 85-140, or fill with good grade gun greese.

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Richie Magoo

07-04-2002 18:30:20

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Re: Re: Re: Re: Bush-Hogs For Dummies in reply to HD, 07-04-2002 18:15:40

That's two for "gun grease" so far. The gun grease has it! That's what I will use! Thanks.

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bill b va

07-06-2002 02:20:42

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Re: Re: Re: Re: Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 18:30:20

some times you can get bad advice on here by well meaning but un knowledgeable people . i have seen first hand what can happen to gear boxes when the gear oil is replaced with grease . the turning gears will hollow out cavaties in the grease and not be lubricated . if this is such a good idea fill the transmissions on you vehicles and tractors with grease. same thing

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bill b va

07-06-2002 02:18:17

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Re: Re: Re: Re: Re: Bush-Hogs For Dummies in reply to Richie Magoo, 07-04-2002 18:30:20

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