Posted by Joe Johnson, Engineer on team #47, Chief Delphi, from Pontiac Central High School and Delphi Automotive Systems.
Posted on 3/12/99 9:03 AM MST
In Reply to: What's Breaking? posted by Dodd Stacy on 3/12/99 7:49 AM MST:
One of our biggest fears is smoking motors.
I have discussed on our old forum (see archives) how the new speed controllers really can provide the juice to the drill and Fisher Price motors.
The combination of a little taller gear ratio than we should have, these Victors and Floppies getting caught in our drive wheels has really lost me some sleep.
I think that we have finally got the problem licked but it was a very serious issue in Chicago. In fact, on the Monday after Chicago, we looked at the Fisher Price motors and saw that they had a blob of plastic where there once was a cooling fan !!!
So, for our money, extra drill and Fisher Price motors are very high on the spare parts list.
Still waiting on news from Philly,
Joe J.
P.S. the Globe motors should also be counted among the unprotected motors by the way -- FYI, I have an unconfirmed report that, contrary to what I had thought, Globe motors DO NOT have thermal protection inside of them as the seat, window, and power sliding door motors do -- this is not a good thing.
If you are running them with a Victor, you should definitely have the 30 Amp breaker in line with them even though under normal conditions they draw less than 20 -- short curcuit + Victor = Toaster coils
