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HELP JLG E300 won’t move

yucandoit ยท 2026-04-09 11:05

I have a JLG E300AJ and everything works except the drive forward and reverse. I get a 7740 trouble code that says to check the shunt wiring and I have tested the continuity of the cables and all seams fine. I don't understand what the shunt circuit does if all 3 wires are hooked to the same bar. PLEASE HELP

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