Performing maintenance
CTU 2xxx series
en-US
Page 79 / 108
BeWa CTU2000 3160738h en-us 2018-11-15.docx
2018-11-15
Replacing the main filter
When the prefilter mat is changed regularly, the main filter can be used for
years without it requiring maintenance. To ensure trouble-free operation, we
recommend replacing the main filter at least every two years.
The main filter can be accessed and replaced via the analysis chamber. The
main filter can be replaced without having to dismantle the entire filter.
Replacing the main filter of a CTU 2000
To replace the main filter, proceed as follows:
Description
Remove all halogen lights from the light
rail. See page 70 for details.
Remove the light rail by undoing the three
hexagon socket screws under the
installation openings for the halogen
lights.
Undo the 10 screws at the bottom of the
filter.
Remove the four metal edge strips at the
bottom of the filter.
Remove the filter element by pulling it
down slightly. The cutting edge of the
filter element will detach from the fluid
seal in the housing as a result.
Fit the new filter element by pressing it
firmly into the fluid seal.
Attach the four metal edge strips to the
bottom of the filter using the 10 screws.
Fit the halogen light rail by tightening the
three hexagon socket screws under the
installation openings for the halogen
lights.
Fit the halogen lights in the light rail. See
page 70 for details.
The replacement of the main filter is now
