7.1 Reset to maintenance state
● Switch off the unit. Unplug the mains plug. Secure the unit against unauthorized restarting
during maintenance.
● After completion of all maintenance work the unit can be reconnected to the power supply.
7.2 Replacing the prefilter mat
The prefilter mat is installed upstream to the particle filter and separates the coarse particles. This
extends the service life of the particle filter.
The prefilter mat must be changed after a certain number of operating hours. The time depends on the
amount of accumulated dust, and therefore cannot be determined beforehand. At the latest, the prefilter
mat must be changed when changing the particle filter.
Whirling up dust is possible.
The prefilter mat is a disposable filter element. Do not try to clean the filter element.
● Open the service door of the particle filter housing (see chapter 2.1).
● Lower the lifting device (A) by turning the clamping screw (B). Therefore, use the hexagon key
that is located on the right of the clamping screw.
● Carefully pull the insert frame (see chapter 2.1) out of the housing.
● Remove the prefilter mat from the insert frame and dispose of or store it according to the
regulations.
● Put a new prefilter mat into the insert frame.
Only use TEKA spare filters. Otherwise the proper functioning of the unit is
not guaranteed.
● Push the insert frame back into the particle filter housing.
● Elevate the lifting device by turning the clamping screw so that the insert frame is pressed
tightly against the above housing.
● Close the service door.
BA_Caremaster-1-und-2_IFA_170831 _EN
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