statusdetailing
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- May 15, 2012
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My Porter Cable DA was having intermittent switch problems, and eventually got bad enough that I was going to have to replace the unit or fix the problem.
I took the unit apart and was sure I would find a loose connection, but found nothing.
What I found was the the main switch on the outside of the unit is actually a dummy switch, which by an internal arm triggers a real, internal switch which controls the unit. It is the small black box with switch on top, at the end of the yellow wire. Pictured here:
Here it is, removed and disassembled.
Eventually what I found, was that the connecting plates inside the switch were covered in a carbon/residue deposit as you can see here:
Here it is after I cleaned it with a brass wire brush:
Note that there are two connectors/plates, left and right:
Replace the wires, and snap switch back on to the box. Reassemble unit. You are ready to polish some paint!
I took the unit apart and was sure I would find a loose connection, but found nothing.
What I found was the the main switch on the outside of the unit is actually a dummy switch, which by an internal arm triggers a real, internal switch which controls the unit. It is the small black box with switch on top, at the end of the yellow wire. Pictured here:
Here it is, removed and disassembled.
Eventually what I found, was that the connecting plates inside the switch were covered in a carbon/residue deposit as you can see here:
Here it is after I cleaned it with a brass wire brush:
Note that there are two connectors/plates, left and right:
Replace the wires, and snap switch back on to the box. Reassemble unit. You are ready to polish some paint!
