Problem
Cause
Solid foreign matter has entered the vac-
uum pump
The vacuum pump
seizes.
Slide valve broken
The vacuum pump
Loose mains connection(s)
makes
excessive
Foreign objects in the vacuum pump-
noise
or
rattles
Faulty bearings or worn slide valves
during operation.
The vacuum pump
Insufficient supply of cooling air
becomes
extremely hot and
switches off due to
thermal limiter.
Mains frequency or mains power supply
outside the tolerance range
Ambient temperature higher than 104 °F
(40 °C).
General work overload
Clamping not pos-
Button valve on the suction plate faulty.
sible
Slide valve [2-1]
Valve sleeve dirty
stiff
Solution
Contact Festool Service.
Have the slide valve [2-1] replaced (Fes-
tool Service).
Tighten or replace loose connections.
Contact Festool Service.
Ensure that the vacuum pump air cooling
system is not obstructed by dust/
dirt.Clean the ventilation grille, wait 10
minutes before resuming work.
Establish a stable power supply.
Wait 10 minutes before resuming work.
Discontinue work, remove workpiece,
switch off machine.
Clean the button valve (see Service and
maintenance)/Replace the button valve.
Clean the valve sleeve and apply a light
coat of grease.
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