In loving memory of Kenis D. Keathley 6/4/81 - 3/27/22 Loving father, husband, brother, friend and firewood hoarder Rest in peace, Dexterday

Bar nose gear lock up

Discussion in 'Chainsaws and Power Equipment' started by WeldrDave, Oct 20, 2015.

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  1. WeldrDave

    WeldrDave Military Outpost Moderator

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    This is a first for me, I was out back tonight bucking up some maple when the 250 acted like its chain pinched in a tree. wouldn't move, :eek: soooo I thought check the chain brake, nope… it's fine so I said WTF:whistle:…. and a few other things, Thought maybe the clutch jammed, nope…, Got a Beer :cheers: and took the bar off. Here the nose wheel was dead locked! o_O:confused:. I had plenty of bar oil in it, it was oiling, I tried WD, CRC, PB blaster, It wasn't budging. So what did I do next…. Heat, now is really junk!!! :zip: :picard:
     
    WeldrDave, Oct 20, 2015
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  2. cnice_37

    cnice_37

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    Jam the nose sprocket into a 2 by or whatever scrap wood is around and roll it to free it up. Lube it up and keep cutting.
     
    cnice_37, Oct 20, 2015
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  3. Deererainman

    Deererainman

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    Sounds like you get to go bar shopping.

    da54b7ab3c8c1f999c3b7726ccd8daae.jpg
     
    Deererainman, Oct 20, 2015
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  4. WeldrDave

    WeldrDave Military Outpost Moderator

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    Tried that! Nope! o_O
     
    WeldrDave, Oct 20, 2015
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  5. Certified106

    Certified106

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    X2 I have had them lock up so tight I thought there was no help and it still eventually rolled free. It usually seemed to happen to me if the chain was getting a touch loose while cutting.
     
    Certified106, Oct 20, 2015
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  6. Cut4fun

    Cut4fun

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    Had a ES bar do it on a 25" not long ago. Free it up, dont pussy foot around. Soaked it in a cocktail mixture I made up and it is still out there cutting about 4 months later.
     
    Cut4fun, Oct 20, 2015
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  7. dusky

    dusky

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    Is that bar engine turned? Looks sweet!
     
    dusky, Oct 20, 2015
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  8. Deererainman

    Deererainman

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    It was done by a fellow going by Homelite410 that's on this site. He does good work. That Stihl logo is machined/recessed. I have some of his bar adapters, very nice quality. We need to get him to post em up over here, if he hasn't already.
     
    Last edited: Oct 20, 2015
    Deererainman, Oct 20, 2015
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  9. haveissues

    haveissues

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    A buddy of mine had a brand new bar lock up on a 250. It somehow managed to ingest some wood into the bearing.
     
    haveissues, Oct 21, 2015
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  10. WeldrDave

    WeldrDave Military Outpost Moderator

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    I'm gonna take it to work and try and free it up. I got a feeling the bearing is just shot! I've had everything imaginable on it so far, nothing….:headbang:
     
    WeldrDave, Oct 21, 2015
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  11. haveissues

    haveissues

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    Was it an older bar? The bearing could of just had it.
     
    haveissues, Oct 21, 2015
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  12. WeldrDave

    WeldrDave Military Outpost Moderator

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    I bought the saw new in 2013 and it had maybe 6 cord under it's belt so…. Not really, it shouldn't have crapped to bed that quick!o_O I'm pretty good about oiling and maintenance. I've cut a lot of wood over the years, never had one do this.
     
    WeldrDave, Oct 21, 2015
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  13. bassJAM

    bassJAM

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    I had that happen on my 550xp on the 2nd tank of gas. I ended up having to put the bar in a vice and use a chisel and hammer to get the sprocket to turn! Once it started spinning all kinds of wood dust came out. I'm not sure what happened, I never had that issue again.
     
    bassJAM, Oct 21, 2015
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  14. Cut4fun

    Cut4fun

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    Also do above plus go opposite way of what it locked up at.
     
    Cut4fun, Oct 21, 2015
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  15. WeldrDave

    WeldrDave Military Outpost Moderator

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    Ok all, After soaking it in the parts cleaning tank all day, beating on it with a Ball peen hammer and a small drift punch in the vise,…..:headbang::headbang::headbang:, I PHUCKED it up real good, it is now in the scrap pile bin at work, Off to the Stihl dealer to get a new one before they close:picard: And for the record, it "NEVER" did come free o_O:mad::headbang::hair: My local shop has one for $40.00 just the 35 min drive to it...:(
     
    WeldrDave, Oct 21, 2015
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  16. WeldrDave

    WeldrDave Military Outpost Moderator

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    Well, I'm back…. $40.00 and tax…. Had to have it! :zip: Dealer said I'm not the first one this has happened to on this model… Hmmmmm….:confused: I saved my receipt incase this one S#!T's to bed any time soon DSCN1821.JPG
     
    WeldrDave, Oct 21, 2015
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  17. Shawn Curry

    Shawn Curry

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    I've had mine jam up with wood chips a couple times. If it ever happens again, you want to leave the chain on the bar while you're trying to free up the sprocket. Jam the chain into a log or something, and push and pull on the saw until it works loose. The chain gives you ideal leverage to try to spin the sprocket free.
     
    Shawn Curry, Oct 22, 2015
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  18. WeldrDave

    WeldrDave Military Outpost Moderator

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    I honestly believe the bearing welded itself, I tried"almost" every thing I could think of. I beat on the sprocket with a punch to the point I bent the points :headbang::eek:o_O I soaked it in the parts cleaning tank nearly all day... Oh well.
     
    WeldrDave, Oct 22, 2015
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  19. jon1212

    jon1212

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    From what you have described, I believe you are correct. A "normal" lock up on the tip would come free by trying to roll it in a piece of wood. If you lost a bearing, and continued using the saw (very short amount of time at WOT), the sprocket will super heat, and fail.
     
    jon1212, Oct 22, 2015
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  20. MasterMech

    MasterMech The Mechanical Moderator

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    I've had trouble with the 3005 mount Stihl bars myself. My MS230 did the same thing every so often.
     
    MasterMech, Oct 22, 2015
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