Question about Milwaukee 1670 1 Drill 1/2 900 Hole Hawg

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The motor runs (Milwaukee 1670 1 Drill) but the chuck does not rotate. This is true with both low and high gear. I suspect the gears are stripped but never had one apart before. I removed the top cover main screws but fail to be able to pull this cap off. How is this done. I do not have the parts or "How to Disassemble" book. Wesley Andrud.

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Hi, chances are the spindle driving the check is snapped. This is quite common. At the same time you might (probably) have some broken teeth on one of the intermediate gears and the narrow gear closest to the motor. I have just dissasembled three Hole hwags for a plumber friend of mine and they all have the same damage issues. The cover should come off fairly easily. Give it a couple of taps with a hammer to loosen it. The cost of replacement parts if the issues are the same is at least $100. Some of the spindles are more (the threaded ones) and will bring the cost closer to $170. remove all the grease as broken teeth will be hidden in there. The only thing I have not been able to find is proper grease to put back into the tool. Hope this helps.

Posted on Feb 24, 2011


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