KNF Labor N022.18 Manual De Instrucciones página 112

Troubleshooting
Flow rate, pressure or vacuum too low
The pump does not reach the performance stated in the technical data or
data sheet.
Cause
Replaced diaphragm
and valves.
Pump is switched on and not running; power switch is not illuminated
Cause
Pump is not connected
to the electrical mains.
No voltage in the elec-
trical mains.
Pump is switched on and not running; power switch is illuminated
Cause
Pump has overheated,
thermal switch has
tripped.
52
Troubleshooting
à
Check the pneumatic connection and hoses for
leaks.
à
If necessary, carefully tighten the screws (B) and/or
(S) (see Fig. 5) crosswise.
Tab.36: Troubleshooting: Flow rate, pressure or vacuum too low
Troubleshooting
à
Connect the pump to the electrical mains.
à
Check the circuit breaker for the room and switch it
on if necessary.
Tab.37: Troubleshooting: Pump is switched on and not running;
power switch is not illuminated
Troubleshooting
à
Pull power cable of the pump out of the socket.
à
Allow the pump to cool down.
à
Determine the cause of the overheating and rectify.
Tab.38: Troubleshooting: Pump is switched on and not running;
power switch is not illuminated
Translation of Original Operating Instruction, KNF 121224-121388 04/23
Diaphragm pump N022.18, N026.18