locking pins on the window motors

[Gdeaver]

We haven't used automotive motors for several years. Many automotive motors also have PTC overload protection in them. We found that using these motors in positioning applications with speed controllers that had a high PWM frequency caused self heating and problems. Did not have problems when used with lower PWM frequency victors. We have no experience with talons and PTC's. The problem was with the Jags.

[ratdude747]

I wrote a whitepaper on removing locking pins awhile back:

http://www.chiefdelphi.com/media/papers/2685

The modification was made legal years ago (and passed on through the rules since) due to the pins vibrating into a locked position when driven by a Jaguar due to the higher frequency switching used (compared to the old Victor 88x's at least). I am not sure if the newer motor controllers have the same issue although I do know that since Jaguars, as old and discontinued as they are, are still legal, so keeping the mod legal makes sense.