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Positive Or Negative Ground?


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Can anyone tell me if the CF600 Mack fire apparatus had a negative or positive ground? Also can you tell me how to convert if it's positive ground? Are wiring diagrams available anywhere?

your mack should be a positive ground, every thing on the truck works positive ground,if you have a fire radio it has to be positive ground to operate. the mack musemun would have the specs on the truck and you will get a wiring diagram in the packet. If your engine is gas you will probably have to change the wiring at the coil/distr. if it is diesel I don't know the procedure

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