Replacing disc bearings on chipper.

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gorman

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Cant do this ####e myself, no siree. Gonna take it to the dealer which unfortunately three hours away hauling my chipper up 95. What perplexes me is that I've meticulously maintained it and the machine only has 800+ hours on it. I've cleaned/greased the bearings fittings every day, kept the knives sharp, and the anvil properly adjusted. I don't feed roots and garbage into my machine so does anyone have any insight as to what I may be doing wrong to cause this premature failure.

Oh, and it's a 2006 bandit 200.
 
The dealer gets around $92 per hour and "it's about an eight hour job" they said. If I took it anywhere else I'd pay comparable and have to wait for them to get around to chasing down the parts. I got a backlog so I just need it done right and quick.

As to a belly pan, I'm not entirely sure what you're talking about. I clean out the chip debris from under the belts from time to time but I dunno how crud would build up around the bearing.
 
Are the infeed rollers vertical or horizontal? If horizontal, is there a belly pan under the chipper under the rollers? If not clean out, debris build up and pushes out the bearing.
Jeff :)
Never used a Bandit is why I asked.
 
Are the infeed rollers vertical or horizontal? If horizontal, is there a belly pan under the chipper under the rollers? If not clean out, debris build up and pushes out the bearing.
Jeff :)
Never used a Bandit is why I asked.

Ive actually seen so much debris compacted in there that it started to belly out the plate, what Jeff says is very true & after a premature change of bearings I figured it out...Now that plate stays open always & I dont care about cleaning the debris up either.

changing the bearings really is not that bad....but if your swamped I understand, I built what looked like a hangmans tower outta 6x6`s (had a few laying around) chain hoist and alot of swearing! hell I havent changed my bearings in 3yrs or better!



good luck!


LXT................
 
ya i gotta agree just leave it open. A few shovel fulls at the end of the day and your done. when they say belly pan thier talking about on the bottom of the machine under the infeed rollers thiers a pan that swings open that will fill up with debris and cause an uneven spin to the disk thus wearing out the bearings.
 
I never heard about the belly pan either. I'll need to check if mine has one or not. How did you know when your bearings went? What did the machine do? Horrible noises? Excessive heat? Everything come unglued? I check mine at least once a week to make sure neither one isn't heating up more than the other, but that's about it besides regular greasing.
 
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Oh yeah. That stays open. less dirt and gravel getting to the knives too. It's always been open. But I was not aware that accumulating shmeg in there could cause an uneven disc spin.
 
yeah, I knew it was going because for a while it was making a rhythmic sound when i shut it down. nothing really bad, for about six months. yesterday that sound turned into something a wee bit more ominous at the drop of a hat. dealer said any sound in an unsafe chipper.
 
dealer said any sound in an unsafe chipper.

Mind clarifying that? Mine's making a bit of a rythmic sound but it's definitely not ominous. I've replaced dern near everything else on my unit so doing the bearings next would be par for the course. My father ( an industrial mechanic ) said if you're not seeing a difference in heat from one bearing to the other after a long use they're probably both ok. Granted, he does lack a bit of experience with high speed bearings. From what you say it seems on alert operator will "know" when they start to go.
 
I never heard about the belly pan either. I'll need to check if mine has one or not. How did you know when your bearings went? What did the machine do? Horrible noises? Excessive heat? Everything come unglued? I check mine at least once a week to make sure neither one isn't heating up more than the other, but that's about it besides regular greasing.

Look at the in-feed rollers in the morning. You got your coffee and walk back and look at the rollers. Are they even?
Jeff :)
 
Look at the in-feed rollers in the morning. You got your coffee and walk back and look at the rollers. Are they even?
Jeff :)

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They look even to me. What you getting at, Jeffi? What do the infeed rollers have to do with the disc bearings?
 
If you're saying that the belly pan is under the infeed rollers and should be open, ok, I guess that makes sense but I though we were talking about the disc bearings here. I can't imagine replacing the bearings on the infeed rollers to be that expensive.
 

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