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I have installed a RT524 radio in my M816 Wrecker and I am now confused as to which 2 of the 4 batteries I use to power it. Thanks

Wow, lots of differant pressures here........ does any one know for sure?

Thanks for all the help now I will check the pressures.

Thanks for the info and will give it a try.

Cool, I will give it a try.......Thanks

Hi, just put Super Singles on my M816 and was wondering what the propper tire pressure would be, 60lbs? 70lbs?..........

Hi Guys I replaced the battery switch, power control box and even disconected the slave cables and I still have sparks from the Neg. Termimal, back left battery and the buzzer is still going. Any more ideas:-? Thanks

Thanks for all the help Guys.......

Thanks buddy. I will check the switch, then the Control Box. GCJ

Took the batteries out for the winter and charged. Put them back in this spring, then the problems. I first got this truck last spring and I changed the batteries straight away, and ran it for 6 months no problem. Thanks GCJ

Hello to all, newbee here from Canada. My question is Battery related in a M816 , put the 4 batteries in and wired them in properly and when go to attach the ground wire from the frame to the neg. terminal, the low air pressure goes off even when the Aux. Power Switch is in the off position...