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  1. W

    644b won't push dirt

    I'll check tonight... Thanks for the thought
  2. W

    644b won't push dirt

    I have an older JD 644b and I'm having problems pushing through a pile of dirt to get a full load in the bucket. I'm changing fuel filters here soon, but it seems like it just doesn't have enough power to push through. Doesn't seem like the engine is choking or bogging down, just not enough...
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