laserwash 4000

LaserWash 4000 Arch rotate fail ONLY during low pressure passes Fails during soap application and spot free rinse @ end cycle? ***It works FINE during HP rinse*** At Failure, it over-rotates missing one or two cam proxs??? (pins itself against wall) Happens in 2 spots.... At rear driver...

Within the last month or so we have started to get somewhat regular arch impacts. Sometimes it might happen after 20 washes. Sometimes it will be 60, but it has become a serious issue. I don't think this is due to customer error as it always happens during the High Pressure wash (Cycle 4 for...