e32 is a 'first stage overheat".
You [most likely] really should fix the brakes first, as they may have been miss-adjusted or had a hardware failure, and may have caused the overheat condition. Not to mention the obvious safety concerns. And be sure the inching valve works correctly after fixing the brakes. Be sure to tell the operator to keep from riding with their foot on the left most pedal, and only use that pedal when they need to increase RPMs to lift more quickly.