Question about Dewalt DC390K 18v Cordless Circular Saw Kit
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: i have just brought a
It is possible that the motor is running backward but... first see the manual here:
http://www.plumbersurplus.com/pdf/08364.pdf Make sure the blade is installed as pictured in figure 4 page 11 of the manual.
After seeing the manual..... make sure the battery is charged correctly. The flat side of the battery should be toward the back of the charger when charging. If somehow the battery was inserted backward in the charger it is possible the battery was reverse charged during the intital charge. If you suspect this has happened.... insert the battery in the saw and run the saw until the battery is DEAD. Then insert it properly in the charger and leave it there for 9 hours so the charger will do the automatic tune up equalization of the battery.
If none of the above correct the problem, someone connected the internal battery power wiring incorrectly during FACTORY assembly. I would take it back to the retailer first... before processing a warranty claim.
You can contact DEWALT here:
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Posted on Apr 30, 2011
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