Hey All,
i came across an odd issue, employee was driving the 5500 and he lost breaks and steering while going down a hill. Luckily no injuries or accident.
I changed the power steering pump because that's where it was leaking from. Fired it up with new pump. That was leaking again. After removing lines from hydroboost, i blew air through the return it pushed back to reservoirs, but the pressure/ feed line off pump was plugged out collapsed, so when the pump pressured up it pushed out the shaft seal and leaked out through there. So i replaced that pump and the line with the banjo fitting. Hope this helps someone. Cheers.