I would also add you should always set the slow down magnet on a hydro slighty higher on the bottom floor than normal so you eliminate any problems of the lift going thru the overtravel limits when a temp problem occurs.
Never heard of that, thanks!
Before the advent of MRL lifts became prevelent here we installed roped hydro's as a standard lift. We found if you raise the bottom level slow down magnet on the rail by probably 50-100mm it really makes a difference when temp changes occur. The reason why this type of lift over runs, is the lift is not given enough time to slow and close the down valves in cold oil conditions. The passengers really cant tell the difference when slowing down and it seems to eradicate these temp variation overrun faults.
