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6. Malfunctions, causes, and remedies
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6. Malfunctions, causes, and remedies
Malfunctions table
Fault Possible cause Remedy
○ Mechanical blockage of the metering device • Eliminate the blockage, check the metering device
Metering device
signal missing
○ Socket not connected or connected
incorrectly
• Check plug contacts, mount the socket correctly
○ Signal line is broken
• Check signal line
○ Piston detector is not installed correctly
• Check engagement depth of adapter and piston detector, tighten if
necessary
○ Piston detector overtightened
• Disconnect the piston detector, check the signal, replace the piston detector
if damaged
○ Wrong adapter used • Use only the adapter approved for the respective metering device
○ A universal piston detector is being used instead of a
bipolar piston detector. (Only when connected to KFG
pumps for automotive lubrication.)
• Swap the pigtail leads: see Chapter 3.3
Flashing light
○ Load is too low (< 5mA)
• Increase the load by, for example, connecting a resistor in parallel in the
input circuit of the piston detector.
6.1 Metering devices signal missing
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