Operating instructions

5.2. Cleaning or Replacing the Air Filter
Set the release switch “Timer” at position:
L
Wait until the blower has stopped.
The run on time of the blower is 10 minutes.
If there is a return air cooler installed, switch off its coolant circuit.
L
Switch off the main switch of the dryer (the signal lamp “power” goes off).
Interrupt the mains supply so that the device cannot be switched on unin-
tentionally.
&
Clogged filters substantially reduce the amount of circulating air and lead
to a production lag of your dryer. Clogged filters may also damage the
heating elements.
64.10-0214GB11 07/03
CTT 40 / CTT 70
Maintenance 5-4