Vacuum Hose Lifter Components
Lifting hose unit with Operating Valve Unit
Status 08.2012 / Index 05
Page 13/15
6
Trouble
Shooting
The device must be installed and maintained by qualified personnel, mechanics
and electricians. Any work on the electrical equipment may be carried out only by a
qualified electrician.
After each repair or maintenance job check the guards as described in the
Operating Manual ”Safety”.
If a load cannot be lifted
, check through the following list to find the problem and
correct it.
Error
Remedy
Opposite direction of rotation
Transpose the phases of the blower connection.
The required vacuum is not reached
Check the suction hose and tube lifter for
airtightness.
Check the mounting of the suction heads
Clean resp. replace the dust filter cartridge
The load is too heavy
Split the load, use other lifting device.
The load is too porous or of low bending strength Load cannot be lifted, try using a different vacuum
head.
Suction hose is damaged
Replace hose or cut out damaged piece and connect
remaining hose with a tube and hose clamps
Vacuum lifting tube is damaged
Replace the vacuum lifting tube
Connection of the vacuum head is damaged
Check seal on the tube cylinder, replace it.
Vacuum head is damaged
Check seal on the vacuum head, replace it.
The load drop off when you lower it
Please contact the manufacturer
The vacuum is reached but the lifting device can
not lift porous loads
Please contact the manufacturer
The control unit of the tube lifter hangs in the
upper block position (with running blower) even
without load and is not coming down by turning the
handle or regulator lever
Turn the adjustment screw at the control unit
clockwise
Clean or replace the dust filter of the control unit
