12
BE_55+56-2U_1212.docx
Operating Manual
of the BM and BE series
3. Description
3.6
How the operating pressure is adjusted
The pressure control panel is set at the factory to a specific nominal operating pressure or average
pressure (with the switching lever positioned in the middle). If necessary, this nominal operating pressure
can be changed.
Step
Activity
1
Position the switching lever (item 1) horizontally and turn it anti-clockwise to unscrew it.
2
Loosen the grub screw (item 2) using an SW3 Allen key.
3
An SW6 Allen key can now be used to adjust the working pressure by turning the hexagon socket
head screw (item 4) below the switching lever.
Turn clockwise to increase the pressure level.
Turn anti-clockwise to reduce the pressure level.
4
After adjusting the pressure level, re-tighten the grub screw (item 2), screw the switching lever
back on, and position it to preselect the side from which the gas is to be drawn.
