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Discussion Starter · #1 ·
I recently purchased a porter cable 892 Router and am having an issue with the clamp which holds the motor to the base. It has what looks like an adjustment screw which can be adjusted with the clamp in the open position but the manual does not discuss adjusting it. I am presently having an issue with the bit moving down when cutting dovetail joints on my jig. Either the bit is drifting out of the collet or the motor assembly is drifting down when the joint is being cut. VERY FRUSTRATING.
 

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Discussion Starter · #2 ·
All set now. After checking everything out it was the 1/4" dovetail bit sliding out of the collet. This is a new PC Router and the collet clamping assembly was lubricated for protection in shipment or storage. No wonder it was slipping. The bit's cutting angle actually generates a force that helped pull it out ever so slightly, although way to much when cutting dovetail joints! I cleaned the bit and collet and that seems to have solved my issue. Challenge met I'm making good dovetails on my drawer boxes now.
 
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