Posted by Jim.ME on April 28, 2019 at 04:56:45 from (74.65.186.86):
In Reply to: Blown something posted by Mertz54 on April 27, 2019 at 10:50:04:
So the current on line parts catalog was an aid in going down the wrong path. The cut from it, I posted earlier, is incorrect as to how they were originally equipped. So noted, thank you, and I agree info left for the future should be correct.
After a bit of searching, here is the electrical system drawing from a 1940 parts manual. It does not have the relay shown in the current on line Ford/New Holland catalog. The starter switch supplies the battery voltage to the starter, when pushed.
As to having a solenoid/relay being a "hack" job and bypassing the safety feature it depends how it was done. The original safety starter switch can still be functional as designed for safety and use a solenoid/relay at the starter. It is a matter of using the right solenoid and re-wiring the start circuit correctly through the mechanical switch to energize the solenoid. Like systems using a solenoid, activated by the key switch or a starter button, the battery cable would go to the solenoid and another cable from solenoid to starter. The solenoid would be activated only by the mechanical safety starter switch. Lighter gauge wires could be used for the mechanical safety switch circuit. True, this is not correct to the original equipment (nor needed), but it can be done, and retain the safely feature, if done properly.
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