Question about Panasonic Cordless 12V Compact Impact Driver Kit with 2 High Capacity 3.5Ah Ni-MH Battery Packs

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Panasonic EY7540 impact driver. Does not go into reverse on 1st

Panasonic EY7540 impact driver. When I switch from forward to reverse it keeps going forward for the first time after I press the trigger. When I let go it then will reverse and stay in reverse after that. Then I will switch to forward and it works fine. The back to reverse and for the first trigger pull it will stay in forward. I release and pull trigger again and if will go into reverse mode. What is causing this. It has happened since it was new. Thx Greg

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EY7540 14.4 volts. Both batteries were fully charged. Operating the driver in various positions would result in the Red battery charge and temp. light coming on and the operation of the driver would die. Pointing the driver up, it was OK. Pointing it down it failed. All connections and solder joints were checked. All joints in the battery cct board were checked. By the way I am an electronic technician. Any ideas?

Posted on Sep 12, 2010

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The forward/ reverse switch is hanging up and the rotation of the drill is switching it, then it changes direction. The switch needs a little TLC and a good cleaning. Blow it out.

Posted on Sep 26, 2009

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