
Screen Lift 750 Trolley Mount
10
10. Trouble shooting.
If the electric lift will not operate up or down when pushing the manual rocker
switch, please complete the following checks in order to evaluate or solve the
problem.
Check the AC mains supply
If the mains plug is fused check the fuse is ok.
Check the wall socket is working by connecting another appliance into the same socket
to test that it works.
Check the AC mains transformer power supply
Disconnect from the AC mains socket and remove the back cover of the motor unit by
removing the small screws. Reconnect the AC mains and carefully look inside to see
whether the red light is showing on the power supply transformer.
If it is not then carefully unplug the connection between the transformer and AC mains
cable. Wait at least 10 seconds and then carefully reconnect the AC mains cable to the
power supply transformer, making sure you push the plug in firmly.
Check the remote receiver control box
With the back cover removed as above you will see that the manual rocker switch is
connected to this box.
Check if there is a blue light showing on the box. If there is not then carefully discon-
nect the manual rocker switch cable from the box and also disconnect the cable com-
ing from the mains transformer power supply. Then carefully reconnect both of these.
If the unit is still not working please report this to your dealer for advice.
If the electric lift will not operate down or is stopping intermittently when push-
ing the manual rocker down switch, please complete the following checks in or-
der to evaluate or solve the problem.
Check the weight loading
Be sure that the weight of the mounted monitor/board or equipment is more than the
minimum 5 kilos but less than the maximum central loading of 100kg.
If it is more than 5kg but less than 25kg then add some pressure from your own body
weight by centrally pushing down on the lift motor unit housing while the ‘down’ rocker
switch is operated, if this works then run the lift up and down a few times with your
hand pushing down in the same way to add some extra weight.
If the lift is working with this extra weight then providing your added equipment is less
than 25kg, slightly loosen all screws fixing the handle to the columns, then carefully
retighten the handle mounting screws as evenly as possible. Then repeat the first part
again. The lift should now operate without the need for you to apply extra downward
pressure.
If your equipment is more than 25kg already on the lift or if after completing the above
the lift is still not operating correctly then contact your dealer for advice.