suejoe6174 Posted July 6, 2011 Share Posted July 6, 2011 does any one know how to hook up the batteries correctly. Had a mechanic hook new batteries up and now the back flashing lights don't work and also when I switch the battery from A to B on the dash board the truck shuts down, she will start and run only on A not B Don't forget the fire trucks have two of everything. I picture of the correct way the batteries should look would really help,Thanks Joe Quote Link to comment Share on other sites More sharing options...
suejoe6174 Posted July 7, 2011 Author Share Posted July 7, 2011 does any one know how to hook up the batteries correctly. Had a mechanic hook new batteries up and now the back flashing lights don't work and also when I switch the battery from A to B on the dash board the truck shuts down, she will start and run only on A not B Don't forget the fire trucks have two of everything. I picture of the correct way the batteries should look would really help,Thanks Joe Quote Link to comment Share on other sites More sharing options...
suejoe6174 Posted July 7, 2011 Author Share Posted July 7, 2011 talked to a Mack mechanic today and he thinks that the problem is in the switch because the batteries were left on and the voltage burned out the B circuitJoe Quote Link to comment Share on other sites More sharing options...
609albert Posted July 7, 2011 Share Posted July 7, 2011 talked to a Mack mechanic today and he thinks that the problem is in the switch because the batteries were left on and the voltage burned out the B circuitJoethe orginal macks had a positive ground system ,check if yours is still connected that way Quote Link to comment Share on other sites More sharing options...
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