here goes,,,,im not good at laser lingo or repapirs but```unit shutting down when galvanized pipe that attaches boom (in middle of bay) gets"in front of"galvanized pipe that attaches to bridge(from perspective of standing at laser entrance and bridge moving towards entrance). (in other words; troubles start when , main boom pipe (that goes to pump) is closer to entrance when laser begins tracking towards entrance) ---- can reorient everything and works fine for a few days,,,apparantly,hose is hitting wall when this flip/flop occurs and the resistence encountered shuts down laser...,,,,this description sounds goofy , even to me, but it as good as i can descibe it,,,this started recently- no new hoses or pipes etc,,,,any help appreciated....tia kemp c