TROUBLESHOOTING
50 | EN
www.schmalz.com
30.30.01.00173/04
8 Troubleshooting
The vacuum tube lifter
J
UMBO
should 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.
If the
load cannot be lifted
, work through the following list to identify and rectify the problem.
Problem
Solution
Preventive measures
Incorrect direction of rotation of
the motor
Reverse the polarity of the
phases of the blower connection
-
Use equipment to measure
the rotating field
-
Use an automatic phase
sequence indicator
Required vacuum not attained Vacuum tube lifter
J
UMBO
with
blower:
-
Examine the supply hose and
tube lifter for cracks
-
Check gripping mechanism
-
Clean dust filter cartridge
and/or filter of the operator
handle and blower and
replace if necessary
Vacuum tube lifter
J
UMBO
with
blower:
-
Increase filter maintenance
interval (see section 9.5)
-
Increase maintenance interval
for the silencer on the blower
Vacuum tube lifter
J
UMBO
with
ejector:
-
Examine the compressed air
hose and tube lifter for cracks
-
Check gripping mechanism
-
Clean or replace the filter of
the operator handle.
-
Clean the silencer of the
vacuum generator
Vacuum tube lifter
J
UMBO
with
ejector:
-
Increase filter maintenance
interval (see section 9.5)
-
Increase maintenance interval
for the filter in the ejector
The load is too heavy
-
Decrease the load, use a
different lifting device
-
Ensure that the workpiece to
be lifted does not exceed the
maximum load
The load is too porous or non
rigid
-
The load cannot be lifted; use
a different suction pad for
non-rigid parts
Supply hose is damaged
-
Install a new hose or cut out
the damaged section and
connect the remaining
sections using tube nipples
and hose clamps
-
Eliminate interference
contours (see section 1.7)
-
Correct the routing
(see section 5.1)
Compressed air hose is
damaged
-
Fit new hose
-
Eliminate interference
contours (see section 1.7)
-
Correct the routing
(see section 5.1)
After repair and maintenance work, always check the safety features as described
in section 9.2 “Check safety features”.