Table of Contents
Advertisement
Maintenance of the double diaphragm pump
8.4 Maintenance of the ball valves
Before maintenance work
24
12.
Pull the remaining O-rings (24) onto the piston
13.
Screw the outer diaphragm flange, diaphragms and inner dia‐
phragm flange together in a clockwise direction on to the
piston rod
14.
Fit both tensioning straps
An inspection or maintenance is normally indicated if
upon starting the double diaphragm pump:
primes badly
–
–
provides less capacity
cycles irregularly
–
cycles, but does not pump
–
1.
First close the suction line of the double diaphragm pump
2.
Close the discharge line of the double diaphragm pump
3.
Shut-off the compressed air supply
4.
Vent the double diaphragm pump
5.
Remove the air supply line from the double diaphragm pump
6.
If necessary remove any liquid which may remain in the
double diaphragm pump
ð Now the double diaphragm pump can be removed for
maintenance.
Advertisement
Table of Contents
