aspeltz Posted October 4, 2010 Share Posted October 4, 2010 Currently my 1950 85LS is running with only one 12 volt battery. I want to add a second battery in parallel to double capacity. But, I want to wire the 2 ignition switches, 2 starter buttons, and battery selector switch to make it original (minus the 6 volt batteries). Right now, the truck will start with either or both ignition switches on, with either or both starter buttons, and with the battery selector in either position. Any suggestions? Quote Link to comment https://www.bigmacktrucks.com/topic/16008-ignition-wiring/ Share on other sites More sharing options...
Firemack Posted October 4, 2010 Share Posted October 4, 2010 AS Peltz,The Mack wiring diagram for B model Firetruck shows the dual battery setup. If you need a copy the Mack Museum has it. I have a copy that I enlarged so I can read it, but is now too big to scan it in. Firemack Quote Link to comment https://www.bigmacktrucks.com/topic/16008-ignition-wiring/#findComment-64776 Share on other sites More sharing options...
joydsilva6987 Posted November 2, 2010 Share Posted November 2, 2010 i think in this case a mechanic could help us in better way.i am eager to see the diagram Quote Link to comment https://www.bigmacktrucks.com/topic/16008-ignition-wiring/#findComment-66251 Share on other sites More sharing options...
gaby62 Posted December 9, 2010 Share Posted December 9, 2010 I need wiring diagram E7-350 Quote Link to comment https://www.bigmacktrucks.com/topic/16008-ignition-wiring/#findComment-68242 Share on other sites More sharing options...
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