Hi,

I just finished rebuilding a window lift motor on my XJ6C passenger front door. Took it apart, cleaned it up (freeing up the brushes), emoried the commutator, put it back together. Hit the input leads with 12V and gnd, then reversed and the motor spun in both directions. Great! Put the whole thing back together and the window goes up when I press the button "down" and goes down when I press the button "up". The wiring seems correct per my schematics. Any one done this before? Is it possible that I rotated the can (magnet housing) 180 degrees? I hope I don't have to remove the motor again, it was a bear getting in and out.

Thanks,

Steve

 

Steve, you merely got your wires reversed. The brushes don't care which way they sit on the commutator it's polarity that matters (where + and - are). Trade your wires around and it'll probably work correctly.
(';')

 

As above! Just reverse the wires.

 

Yup, one of the beauties of an electric motor.


I saved a nice little 1/3HP motor to power the "antique" little Atlas lathe that I restored.


I had two choices as to mounting it to get the rotation I wanted. One a little more compact than the other. By changing the wires inside, I reversed the rotation to accommodate the mount under the jack shaft in stead of away from it.


And, I have a couple of meat "reversing switches. Flip one way for CW and the other for CCW. An interesting bit of "crosswiring" under them does that. But, hooking one in is a bit more complex. Not needed for my primitive machine skills. heck centering the work in the three bit chuck taxes them.


Carl

 

I noticed the same thing on my series 3 XJ6. The wiring harness that plugs into the switch(es) on the ski slope are not gender specific (they can be reversed to change the direction the switch works in. Just turn the plug over, or swap the wires on the motor.

 

Thanks all, sorry I took so long to respond, holidays were busy, I changed the wires and everything works fine. But still curios as to why this happened??? I did not rewire the switch, and plugged the motor wires in exactly as they were unplugged. I know this because when I pulled the wire connections apart, I pulled one of the "bullet nose" connections from the receptacle on the motor side and the other from the harness side. This way you can't make a mistake when reconnecting. If you did it would be bullet nose to bullet nose and receptacle to receptacle....

Steve