M&C TechGroup MP47-Z-BPR150 Operator's manual - Manual (Page 18)

18
Gas sampling and gas conditioning technology 6-1.1.7-ME
16 TROUBLE SHOOTING
Before working on the pump, disconnect the power supply securely. Check that the lines are not alive.
Problem/Indication Possible cause Action/Check
Pump does not lift. No mains supply. Check power supply; check the correct fitting
of the mains cable.
Connections of lines are
blocked.
Remove blockade.
The internal or an external
valve is closed or a filter is
blocked. Open the valve or clean the dirty/blocked
filter.
Liquid (condensate) is col-
lected inside the pump head. Operate the pump with air for a few minutes;
mount it at the highest point of the system.
Pump capacity,
pressure or vacuum
are too low. Diaphragm or valve plates are
worn out. Exchange the respective parts.
Compare the actual perfor-
mance with the technical data
in chapter 9. Pump is possibly not designed for this condi-
tion.
The vacuum on the suction
side is too high. Pump is not designed for this condition.
The cross section of pneumat-
ic lines or connected compo-
nents is too small, or they are
restricted. To measure the performance, disconnect the
pump from the system; even one single line
with a too small cross section can influence
significantly the measuring value, the same
is valid for a valve installed in the system.
A leak on the connections, the
lines or the pump head. Di-
aphragms or valve plates are
defective or head parts are
dirty. Insulate the leak. Tighten the screws.
Change the defective parts, clean or ex-
change the dirty parts.
N O T E !
Before any work on the pump, disconnect the supply voltage and check
that no parts are alive.