Troubleshoot - TAWI VM30 User Manual

5 Troubleshoot

This chapter provides information on how to investigate or rectify problems that may occur. Actions
marked with (*) must be carried out by TAWI or a TAWI authorised service technician.
Problem Likely caused by
Vacuum pump not started
Load too heavy
Air leakage
Dirty vacuum pump filter
Dirty suction foot filter
Vacuum pump installed in the wrong
direction
Suction foot installed incorrectly
Suction foot rubber gasket damaged
or worn
Air leakage
Filter unit control valve open
Wrong adjustment of load balance
Action required
Check function of vacuum pump. See
pump on page 4
.
Reduce load. It must not exceed the lifting capacity of
the lift.
Check connections, air and lift tube for damage or
wear. Tighten clamps and, if necessary, change air or
Shorten or change lift tube on page
lift tube (see
8).
Check filter unit for leakage.
Clean vacuum pump filter on
Clean filter inset, see
page 18
.
Clean suction foot filter, see
on page 17
.
Check the direction of rotation of the vacuum pump. Is
air blowing from the silencer? If not, change the phas-
es over. This must be carried out by a qualified electri-
Install vacuum pump on page 4
cian, see
Remove suction foot and clean the foot filter. Refit
Install suction foot and touch bolt
suction foot, see
on page 10
. Do not overtighten the fixing bolts.
Problems can occur because the bolts are undertight-
ened or overtightened. Overtightening may deform the
top of the suction foot.
Replace gasket.
Check connections, air and lift tube for damage or
wear. Tighten clamps and, if necessary, change air or
Shorten or change lift tube on page
lift tube (see
8)
. Check filter unit for leakage.
Adjust filter unit control valve, see
and air tubes on page 7
Adjust load balance without and with load, see
load balance on page 12
Install vacuum
Clean suction foot filter
.
Install filter unit
.
Adjust
.
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