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Implement Alley Discussion Forum

Brush hog shaft seal

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Bob Jarvis

06-14-2004 09:41:30

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I've got a KingKutter 5' brush hog that's a couple of years old. So far it's doing fine, no leaks (I check the gearbox oil level regularly), but I'm wondering - how do I go about replacing the shaft seal when it finally decides to give up? I can handle twisting wrenches and such but I've never had to replace something like a seal. What kind of equipment will I need, etc? I appreciate any advice offered.

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txblu

06-17-2004 09:36:59

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Re: Brush hog shaft seal in reply to Bob Jarvis, 06-14-2004 09:41:30

I wouldn't change the seal if my life depended on it.....almost.

When and if needed, if you don't like grease you might try Lubriplate 105 grease. It's at the auto parts store and used for initial lube on engine rebuilds. It's viscosity is between 140w and grease.

Your KK should have a vent on the fill plug to let off pressure caused by heat. Just allowing this pressure to fluctuate goes a long way in keeping your oil in the gearbox and touching the seal, which lubricates and cools it.

I think a lot of seals die because mfgr's don't vent the gearbox and after a few years of wear, the seal yields to the pressure build-up and lets oil out. Ultimately you run out of oil, the seal overheats and ruins and there you have it.

Mark

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marlowe

06-14-2004 15:56:47

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Re: Brush hog shaft seal in reply to Bob Jarvis, 06-14-2004 09:41:30

changed [4] in the last week [plus gears] . not hard IF you got the right tools. i stand them on end rear wheel up [CHAINED UP TO HOIST SO IT CAN'T FALL ] i first remove blades because i use the blade holes to pull stump jumper pan with a puller i made . remove the bolt or nut that holds the pan on then i put my puller on and tighten down a little heat and pop the pan will come right off pull seal cap off and replace seal total time about 1 1/2 hr. but you need the right tools like a 3/4 or 1 in. impack wrench . did one on a john deere in 45 minns. yesterday

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John Bundy

07-19-2004 15:12:18

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Re: Re: Brush hog shaft seal in reply to marlowe, 06-14-2004 15:56:47

I also have a seal leaking on my john deere brush hog. I could use some advice. First how do determine what model it is. Second, the clutch is slipping so bad that it is pretty much useless. Can any one reccommend a website, dealer, etc. where I can find out model, how to disassemble and how to order parts. Thanks in advance to all who can help me.

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dan

06-14-2004 14:51:15

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Re: Brush hog shaft seal in reply to Bob Jarvis, 06-14-2004 09:41:30

we just put the greese to the gear box

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