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How to change Sanding belt on a dewalt MHB 90.Turning the knob on the side does move thr front roller but not enough to get the belt on. Neil

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Try pushing the front roller in towards the back
it is most likely a spring loaded arm that when pushed back will activate a trip lock to hold it back
after fitting a new belt release the trip lock
spin the belt by hand and use the knob that you were turning to center the belt on the pulley
if you do not do that , then on starting the belt may run off the pulley

Posted on Apr 30, 2017

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