13
Fault correction
Warning
Problem
Required vacuum
is not attained, in-
dicator on the va-
cuum gauge [1-3]
in red sector.
Insuffi cient vacu-
um during opera-
tion.
The vacuum pump
does not start.
The vacuum pump
seizes.
The vacuum pump
makes excessive
noise or rattles
during operation.
All maintenance and repair work on the pump must be carried out
by an authorised service workshop only.
Possible cause
Vacuum gauge faulty
Vacuum pump faulty
Hose and/or pipe connections are
not tight
Air fi lter partly blocked
More than 2000 m above sea level
Slide valve worn
Clamping unit not connected
Clamping unit not seated correctly
on 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
When using the clamping unit
VAC SYS SE:
Clamping unit does not form a seal
with the clamping plate
Suction cup on the workpiece not
completely sealed
Drive motor is overloaded or con-
nected to incorrect mains voltage
Vacuum pump faulty
Mains cable is too small or too long
Solid foreign matter has entered
the vacuum pump
Slide valve broken
Loose mains connection(s)
Foreign objects in the vacuum
pump
Faulty bearings or worn slide valves
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 workpiece
Check the clamping plate and suc-
tion cup
Connect the drive motor to the cor-
rect mains voltage
Repair or replace the vacuum pump
(Festool Service)
Use a mains cable with suffi cient di-
mensions
Contact Festool Service
Replace the slide valve
(Festool Service)
Tighten or replace loose connec-
tions.
Contact Festool Service
18