Becker DT 4.6 Translation Of The Operating Instructions page 27

27 | DT 4.2, DT 4.4, DT 4.6, DT 4.8
It is imperative that the minimum slide widths are observed, otherwise the slides may break and cause damage to
the pump.
Slide widths:
Size
DT 4.2
DT 4.4
DT 4.4 DC
DT 4.6/0-61
DT 4.8
Table 8.4: Slide widths
Clean intake filter
Depending on the degree of contamination of the intake air, the filter
cartridge becomes clogged. It must be cleaned with compressed air at
the intervals mentioned above, but at least every 200 hours.
During cleaning, wear protective goggles and an FFP2 mask according to
EN 149:2008.
The filter cartridge is installed behind the side cover, which is fastened
with 4 Allen screws. Loosen the cover, remove the filter cartridge and
blow it through with compressed air from the inside to the outside.
If the filter's function is restricted (clogged, oily, greasy or damaged) even
after the cleaning process, it must be replaced.
Only use original spare parts from Gebr.
Check rotary vane
Check the slide width after 3000 operating hours or at least annually.
The sliders are also installed behind the front cover. Loosen and remove
them as described in the previous point. The side cover underneath is
fixed with 4 Allen screws.
Loosen these and remove the side cover.
Pull the slides out of the piston.
Visual inspection for damage and measure slide width.
When reassembling the sliders, ensure that they are installed in the
correct position.
Blow out the housing with dry compressed air
Minimum width
11 mm
11 mm
11 mm
12,5 mm
12,5 mm