Drill/Driver - Where Does The Red Wire Go?

Reply Mon 20 Jun, 2016 08:06 pm
I've got an older Black & Decker variable speed electric drill, that I just recently had to replace the brushes on. That all went pretty well, and the drill parts all came back together just fine.

When I went to close up the back plate, I noticed that a single red wire had apparently come loose from its contact. Despite looking for a long, long, long time - I just can't seem to locate where this red wire connects to the drill circuitry. From the pictures, the position and the length of the wire suggests the likely general location of its contact, but I just can't seem to find it. I wonder whether this wire might be a lead to the variable speed trigger, but again - no visibly apparent contact to insert the wire into. Based on the uber straight condition of the bare end of the red wire, it appears as thought the wire went in an insertion contact, and not some kind crimp contact like the leads to the brushes.

Any thoughts or suggestions based on this description, or the attached pictures.
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Reply Sat 25 Jun, 2016 11:16 pm
I'm always at least semi-happy when I'm able to solve my own problems.

I looked at the drill/driver thoroughly (and in good light) to try and see where the dislodged red wire terminates. A visual examination really didn't reveal anything very helpful. However, falling back on the assumption that most electrical devices have a certain symmetry to their wiring patterns - I closely examined the wiring on the opposite brush housing.

Using that as a guide, the red wire is inserted into a nearly invisible friction wire fitting, located just to the right of the brush housing.


With that successful solution in-hand, the drill came back together and works just fine. Hopefully, my posted solution may help someone else with a similar problem down-the-road.
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Reply Sat 25 Jun, 2016 11:43 pm
Sorry. I wish we could have been some help.
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