Re: Stewart's 1955 Packard 400
Posted by HH56 On 2016/1/25 19:07:27
Yes, the small terminal is where limit switch connects. One thing I am wondering is the orientation of the solenoids. You can check with a volt meter.
If you measure 12v to ground at the long incoming buss bar from the fuse and connecting the two solenoids via the large terminals, assuming the control switch is not connected or at least not energized you should also have 12v to ground at the small terminals. If you do then the problem is before the solenoids -- either limit sw or control sw.
If you have voltage at the buss bar but do not have 12v at the small terminals there are two possibilities. One is the solenoid is the wrong type and the coil is internally grounded. Those need a voltage to operate and won't work in the TL. The other is the solenoid is oriented or mounted backwards so the buss bar carrying incoming power is on the wrong or output side large terminals.
If you look at the drawing, at the end of the red arrows the proper solenoids for the TL have the coil internally connected and powered by one of the large terminals. A ground on the small terminal will energize those type solenoids. If the solenoid is backward and power is on the output side terminal, the coil cannot get any power. There will be no reading of voltage at the small terminal and no way to energize the solenoid. Usually the type with internally connected coils will have a Battery label on or near one of the large terminals.
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If you measure 12v to ground at the long incoming buss bar from the fuse and connecting the two solenoids via the large terminals, assuming the control switch is not connected or at least not energized you should also have 12v to ground at the small terminals. If you do then the problem is before the solenoids -- either limit sw or control sw.
If you have voltage at the buss bar but do not have 12v at the small terminals there are two possibilities. One is the solenoid is the wrong type and the coil is internally grounded. Those need a voltage to operate and won't work in the TL. The other is the solenoid is oriented or mounted backwards so the buss bar carrying incoming power is on the wrong or output side large terminals.
If you look at the drawing, at the end of the red arrows the proper solenoids for the TL have the coil internally connected and powered by one of the large terminals. A ground on the small terminal will energize those type solenoids. If the solenoid is backward and power is on the output side terminal, the coil cannot get any power. There will be no reading of voltage at the small terminal and no way to energize the solenoid. Usually the type with internally connected coils will have a Battery label on or near one of the large terminals.
Attach file:
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