13
Fault correction
WARNING
Problem
Possible cause
Vacuum gauge faulty
Vacuum pump faulty
Hose and/or pipe connections are not
tight
Air fi lter partly blocked
Required vacuum
More than 2000 m above sea level
is not attained,
Slide valve worn
indicator on the
Clamping unit not connected
vacuum gauge
[1-3] in red sec-
Clamping unit not seated correctly on
tor.
the base surface
Unsuitable base surface (not airtight or
fl at)
Rubber seal underneath the contact
surface shows signs of damage
Foot valve faulty
Vacuum hose faulty or leaking
Vacuum pump faulty
Insuffi cient
When using the clamping unit
vacuum during
VAC SYS SE:
operation.
Clamping unit does not form a seal
with the clamping plate
Suction cup on the workpiece not com-
pletely sealed
Drive motor is overloaded or connected
to incorrect mains voltage
The vacuum
pump does not
Vacuum pump faulty
start.
Mains cable is too small or too long
Solid foreign matter has entered the
vacuum pump
The vacuum
pump seizes.
Slide valve broken
The vacuum
Loose mains connection(s)
pump makes
excessive noise
Foreign objects in the vacuum pump
or rattles during
Faulty bearings or worn slide valves
operation.
All maintenance and repair work on the pump must be carried out by an au-
thorised service workshop only.
Remedy
Replace the vacuum gauge (Festool Service)
Repair or replace the vacuum pump (Festool
Service)
Check the connections for leaks
Replace the air fi lter
Change the slide valve (Festool Service)
Connect the clamping unit
Seat the clamping unit correctly on the base
surface
Use a suitable base
Replace the rubber seal
Replace the foot valve
(Festool Service)
Replace the vacuum hose; replace the hose
connector if necessary
Repair or replace the vacuum pump (Festool
Service)
Stop work immediately and remove the work-
piece
Check the clamping plate and suction cup
Connect the drive motor to the correct mains
voltage
Repair or replace the vacuum pump (Festool
Service)
Use a mains cable with suffi cient dimensions
Contact Festool Service
Replace the slide valve
(Festool Service)
Tighten or replace loose connections.
Contact Festool Service
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