2006 Mack shredding belts

Discussion in 'Mack Forum' started by CLilly, Jun 8, 2018.

  1. CLilly

    CLilly Bobtail Member

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    Jun 8, 2018
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    I’ve put 3 belts on this truck and it keeps eating them up all pulleys seem to be good. Any advice?
     
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  3. AModelCat

    AModelCat Road Train Member

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    Pulleys good? Like condition-wise? Usually when belts shred its due to an alignment issue. Have you changed any belt driven components recently? What about mounting bracket condition for things like the alternator, A/C compressor etc? Sometimes brackets will break and a component will come out of alignment.
     
  4. CLilly

    CLilly Bobtail Member

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    Jun 8, 2018
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    I just bought the truck and started having this trouble.
     
  5. kemosabi49

    kemosabi49 Trucker Forum STAFF Staff Member

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    If the pulleys are not directly lined up with each other the belt will get tore up. The edges of the belt should not touch the side of any pulley.
     
    AModelCat Thanks this.
  6. CLilly

    CLilly Bobtail Member

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    Jun 8, 2018
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    The dealership just put a new tensioner pulley on it so maybe that’s the problem.
     
  7. CLilly

    CLilly Bobtail Member

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    Jun 8, 2018
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    They think it may be the harmonic balancer has anybody ever heard of that.
     
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