US SL-608 OUTDOOR High Lifter 01/2017
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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 – a 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.
Close slide valve. Disconnect one vacuum circuit at hose coupling, and then open the slide valve for vacuum
suction again. If the vacuum suction on the pressure gauge for disconnected circuit is now constantly -0,6
bar, there will be a fault on the hose set or at the suction cups in disconnected vacuum circuit. Test the
same procedure in case of fault on the other vacuum circuit system. You may listen for leaks.
Vacuum Guard light red when
correct vacuum suction reached
Vacuum Guard light green when
pump is running (2 circuits system)
2 pcs. Vacuum filters
2 vacuum guards with check
valve
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