Festool VAC SYS - Manual (Page 19)

19
Problem Possible cause Remedy
The vacuum
pump becomes
extremely hot
and switches off.
Insuffi cient supply of cooling air
Ensure that the vacuum pump cooling system
is not hampered by dust/dirt.
Clean the ventilation grille,
Maintain the distance specifi ed between the
air vent slits and the wall
Mains frequency or mains power sup-
ply outside the tolerance range
Establish a stable power supply
Ambient temperature higher than 40 °C Stop work
Clamping not
possible.
Button valve on the suction plate faulty
Clean the button valve (see 8 Service and
maintenance)/
Replace the button valve.
Slide valve [6-1]
stiff.
Valve sleeve [6-2] dirty
Clean the valve sleeve and apply a light coat
of grease