Anyone know how to mount a second PTO on the 5215 4wd, the manual shows a cover in the front of the rear axel but mine doesn't have it. Maybe only available on 2wd models? Want to mount a bigger hydraulic pump on the second PTO but failing that does anyone know how big a pump I could use if I replace the existing one. The rig is rated at 18 hp but I just had pump and injectors maxed out and I opened up intake and exhaust ports as well as some chamber cleanup, runs great and clean with the extra power so it should run a second pump pretty good. Also any ideas on a charging system mine is not putting out and tried cleaning up the alt but was no help?