Smart Lift SL 580 MAXI, User Manual

Page: 19 / 30

US SL 580 MAXI 03/2016
19
Stop-Down at Vacuum System
If – vacuum pump will not run.
Always check that there is power on the machine, and that it has not been disconnected by switch or by
fuse in the control box. Relay for pump may also be defective.
If – vacuum pump runs constantly.
Check that the slide valve is closed (should be closed to generate vacuum). Read pressure gauge (should be
about 0.60)
If – the pressure gauge is constantly about 0.7 or more.
In that case, there will be a fault on the vacuum guard.
If – the pressure gauge is constantly appr. 0.55 or less, and the pump is running.
In that case there would be a fault on the vacuum pump, or leak on the hose connection between check
valve and vacuum pump?
If – the pressure gauge indication drops after the main switch has been disconnected, and the slide
valve closed.
In that case, there will be a fault – leak between slide valve and check valve. Pressure gauge, slide valve or
vacuum guard may be defective. If hoses are dismantled at couplings, and the pressure continues to drop,
the fault will be with the slide valve.
If – the vacuum pump starts and runs constantly, possibly with dropping pressure, when the slide
valve is opened, in connection with suction of work.
Check that all suction cups bear correctly on the work. I.e. that the particular suction cup is parallel with the
work, and that no parts of the suction cups protrude from the work (IMPORTANT!!).
If – the vacuum pump starts and stops at very brief intervals.
Dismantle spiral hoses at couplings and close the slide valve if this has not been done already. If the
vacuum pump still starts and stops at very brief intervals, there may be a fault on the check valve.
If – the vacuum pump starts and runs, and stops at brief intervals, possibly with dropping pressure
on one or both pressure gauges, when the slide valve is opened, after correct suction of work.
Slide valve with safety
lock for activation and
deactivation of vacuum
suction.
Vacuum suction on both
pressure gauges to be
0.62 between 0,6 -0,7)
© 2006 Copyright. www.smartlift.dk
© 2006 Copyright. www.smartlift.dk