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Festool VAC SYS User Manual

Page 19

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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