Question about Milwaukee 5321-21 Rotary Hammer

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Spline drill bit won't spin

I have a Milwaukee 5321-21 roto hammer and the drill bits won't spin, it just hammers. What could be the cause of this?

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There a a few things to look for, first is the selector on top in the hammer only position or hammer with rotation. Second look at the spline bit, does the splines look worn excessively also try and look in the nose of the tool for spline condition and last the clutch mechanism might have come apart. Good news though this tool might be covered under warranty, some had a 5 year coverage.

Posted on Dec 18, 2008

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It might be jammed check it

Posted on Sep 26, 2008

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Posted on Jan 02, 2017

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