| [GMCnet] ELECTRIC ACTUATOR FOR PARKING BRAKES [message #104634] |
Sat, 30 October 2010 17:12  |
Charles Aulgur
Messages: 78
Registered: March 2006
Karma:
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Jim has found an American made electric scissors jack that he is
having shipped to me that may be better then the Harbor Freight unit
made in China. He wants me to see if I can design a 12 vdc actuator
to actuate the Caddy calipers when changing to the reaction arm rear
brake system. He didn't like the first one I did because it did not
have the capability of being released if the electric actuator failed
in the applied position. One problem is how to determine when you
have the proper loads applied to the Caddy calipers. Do any of you
electrical experts know if someone makes a simple adjustable current
limit switch that could shut of the power to a electric motor when a
certain amperage is reached? It needs to shut off the power directly
or actuate a solenoid relay to shut off the power and not re-set
until power is again applied to the electric motor. I have searched
on the net but all I found were expensive electronic boxes controlled
by a computer.
Chuck Aulgur
La Mesa, CA
76 Royale with excellent brakes
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