Operator's manual Owner's manual

Gas sampling and gas conditioning technology 6-1.1.10-ME

14.1 CHANGING THE DIAPHRAGM, VALVES AND SEALINGS

Hexagon screws

Figure 3 Pump head with hexagon screws

 Loosen the 4 hexagon screws;

 Remove the 2 parts of the pump head.

Valve plates

Sealing rings

Diaphragm

Figure 4 Dismounted pump head

 Unscrew the diaphragm by hand out of the tapping hole of the rod (counter-clockwise);

 Screw the new diaphragm into the rod hand-tight;

 Change the sealing rings and valve plates;

 Put on the basic part of the pump head and control that the bulge of the diaphragm fits to the

groove of the pump head;

 Put on the upper part of the pump head so that its pin fits into the hole in the basic part of the pump

head;

 Fix the 4 hexagon screws constantly over cross;