The drive belt on my Challenge MP-15 just broke. I found a link to buy a new one from Grainger, based on a link Paul had posted for an SP-15 (the specs seem correct, 18″ long, 1/5″ pitch, 90 teeth).

Any details on how to remove the ink drum? I assume the procedure is very similar to the SP-15, not certain. 


2 thoughts on “How to replace drive belt for Challenge MP-15?”

  1. Check for slack in the belt, if it’s tight loosen the motor mounts and slide the motor forward.
    Remove set screws on each end of the ink drum.
    Lift drum at an angle from the operator’s side and rotate to disengage from the belt.

Leave a Comment