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harman accentra auger drive noisy

Post in 'The Pellet Mill - Pellet and Multifuel Stoves' started by ivanhoe, Nov 18, 2012.

  1. ivanhoe

    ivanhoe Feeling the Heat

    Joined:
    Dec 27, 2008
    Messages:
    262
    Loc:
    great white northern ontario
    hi,
    well, seems like another culprit has crept up to annoy me. when the feed drive kicks on, there is a thumping noise coming from the back of the stove. upon removing the back cover, voila! the auger gear drive is bouncing when the thumping noise appears. by placing my finger on the auger shaft and another finger on the gear drive, the gear drive seems to be the one jumping about(but that could be because of the rubber isolating mounts which gives in to the movement first). anyways, could it be my gear drive is on it's way out? can i dismantle it and fill with grease and inspect for wear. i might need a good source to order from, any suggestions?
    thx and stay warm.

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  2. Harman Lover 007

    Harman Lover 007 Minister of Fire

    Joined:
    Dec 31, 2010
    Messages:
    1,495
    Loc:
    Eastern Mass & Lakes Region of Maine
    There are a couple things to check. Make sure your fines box is empty. When was the last time it was cleaned? Check for creosote buildup on the tip of the auger or in the auger cavity. An '05 Harman may still have the chain drive auger so if you are handy a full disassembly of the auger system might be a good idea. Aftermarket auger motors are readily available. Good luck.
  3. ivanhoe

    ivanhoe Feeling the Heat

    Joined:
    Dec 27, 2008
    Messages:
    262
    Loc:
    great white northern ontario
    the auger was removed this summer for inspection. gummied up and cleaned with installation of the cross-over hose. will reinspect the fines chamber. disassembly of the auger drive should be straight forward?
  4. TheMightyMoe

    TheMightyMoe Minister of Fire

    Joined:
    Aug 2, 2012
    Messages:
    552
    Loc:
    Fairbanks, Alaska.
    My dealer said the auger motor on my P68 is just 4-5 screws, and that he has to go in them occasionally to add/shift around grease.

    Not sure about the Accentra, but on the P68 it's is 2 or 3 bolts to pull out the AUGER/MOTOR.
  5. ivanhoe

    ivanhoe Feeling the Heat

    Joined:
    Dec 27, 2008
    Messages:
    262
    Loc:
    great white northern ontario
    i removed the drive and ran it without the chain and it was making no noise. i decided to retightened the auger drive to the housing and so far all is well. it's hard to tell how tight to fasten with rubber sleeves on the screws(surely was caused when i removed it this summer).
    thx for everyone's input!
  6. Lousyweather

    Lousyweather Guest

    hmm....fines container would be my first guess, but thats been done. 2nd guess would be gummy stove syndrome, but it seems thats been done. How about worn sprockets? See how shard the teeth of the sprockets are....if they are sharp, they need replaced. the chain can wear the sprockets, as the chain is a harder steel. Be forewarned, a new sprocket kit is somewhat pricey, but it includes two sprockets, the tensioner, a chain, and a new mounting frame assembly.....I THINK they are about $300 or so.....
  7. ivanhoe

    ivanhoe Feeling the Heat

    Joined:
    Dec 27, 2008
    Messages:
    262
    Loc:
    great white northern ontario
    from what i'm seeing, it could very well be the pellets and slide gate making the thumping noise. i am using a hardwood brand(cubex) this year and last year they were a softwood brand(Lacwood). maybe i should sharpen the slide gate and see if it helps any.
  8. ivanhoe

    ivanhoe Feeling the Heat

    Joined:
    Dec 27, 2008
    Messages:
    262
    Loc:
    great white northern ontario
    thumbs up at the moment! i was about to pull the trigger on a new auger drive but oiling the chain seems to quiet things down. the chain was flexible before but i guess oiling it is doing the trick.
    stay warm and thirsty my friends!

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