TROUBLESHOOTING
30.30.01.00127/03
www.schmalz.com
EN | 36
8 Troubleshooting
The lifting device must only be installed and maintained by qualified specialist personnel, mechanics
and electricians. Work on electrical equipment must be carried out by qualified electrical specialists
only.
After repair and maintenance work, always check the safety features as
described in section 9.2 “Check safety features”.
If the
load cannot be lifted
, work through the following list to identify and rectify the problem.
Problem
Cause
Solution
Vacuum of -0.6 bar not
reached
Sealing lip on suction plate is
damaged
Replace suction plate
Workpiece has cracks, gaps or is
porous
The workpiece cannot be handled
with this lifting device
Gauge is faulty
Replace the gauge
Leaking hose/screw unions
Replace/seal components
Vacuum generator
functioning, but
workpiece is not vacuum-
gripped
Manual slide valve on control handle
is in “Release” position
Move manual slide valve on control
handle into “Pick up load” position
Manual slide valve faulty
Repair/replace
Not all suction plates are completely
on the workpiece (leakage air is
being sucked in)
Position the lifting device on the
workpiece so that all suction plates
are completely on the workpiece.
A valve on a suction plate not
covered by the workpiece is open
Switch off the individual suction plate
using the valve on that suction plate
Filter is dirty
Clean or replace cartridge
Filter not closed
Close cover
Leaking hose/screw unions
Replace/seal components
Warning device is
triggered
Workpiece has cracks, gaps or is
porous
The workpiece cannot be handled
with this lifting device
Sealing lip is damaged
Replace sealing lip
Faulty hose/leaking screw unions
Replace components
Vacuum switch misaligned/faulty
Contact customer service
