SDF 250/400/500
Maintenance 5-9
5.4. Cleaning the Drying Hopper
Switch off the hopper heater
and the dryer:
L Wait until the regeneration phase is finished
and the blower has come to a standstill.
Switch off the main switch of the dryer.
Interrupt the mains supply so that the device cannot be switched
on unintentionally.
If there is a return air cooler installed, switch off its coolant
circuit.
F Clean the drying hopper each time you are changing the
materials.
Make sure that the drying hopper has cooled down sufficiently.
Make sure that the drying hopper is completely empty.
Remove any granules remaining on the ground.