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RVGator
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Date: 10-26-2009
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Number of Hours: 2.75
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Manual Reference:
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Brief Description: P-Mag push buttons
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I did not do much today, I had other stuff to take care of and really just wanted a break. I stopped at an electronic supply shop looking for some push button switches for the power test to the P-Mags. The smaller ones I liked were only .25 amps which would not work since it is a 2 amp circuit. I did find some metal ones that I am going to try, they are push button, momentary, normally closed switches, and they fit the same hole as the toggle switches. To test the P-Mags internal alternator you momentarily remove the 12V power going to it, if the engine continues to run then the internal alternator is functioning, hence the “normally closed” switch, a push of the button will open the circuit, release and it operates normally. The best part is the switches were only $7. I temporarily installed all of the switches to give them a test drive. I bought some rubber boots to go over the push buttons but I don’t like how they look. I will find some type of vinyl cover, maybe paint them, or leave them as is, hey there is a thought! The top two switches are Battery/Main Alternator on the left, Standby Alternator on the right. The bottom row is the left and right P-Mags with the test button for each next to its respective switch. The toggles stops the P-Mag from sending a spark to the plugs, the mag check is just like normal mags.
I still needed to tie the diode to the main bus, so I tackled that project. After it was all done I wanted to test the function of the diode. With the main bus powered the voltage read 13.72 V on the main bus and 13.44 V on the E-bus. The diode causes a slight voltage drop. I then powered the E-bus as it would be using the alternate power feed switch and it did in fact only power the E-bus, there was a slight voltage reading on the main bus of only 0.4 volts.
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With rubber boots on puttons
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Ilike them better without
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Jumper accross two terminals of the diode the to the main bus.
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