22
Troubleshooting
Pump
operation
unintention-
ally stops.
Power voltage is too low.
• Observe the allowable voltage
range.
Suction line pressure is higher than
atmospheric pressure.
•
Keep it lower than atmospheric
pressure.
Discharge line pressure is higher
than the maximum.
•
Observe the maximum discharge
pressure.
Connecting rod bearing has worn. •
Replace the connecting rod unit.
Contact us.
Motor trouble (a breaking wire, ca-
pacitor failure or bearing damage)
•
Replace the motor. Contact us.
An air flow
rate and a
discharge
pressure are
too low.
Wrong tubing or poor connection
•
Check and fix tubing.
Pump head mounting screws are
loose.
•
Tighten the screws.
Diaphragm fixing screw is loose.
•
Tighten the screw.
Diaphragm is broken.
•
Replace the diaphragm.
Filter is clogged.
•
Clean the filter.
Valve has worn.
•
Replace the valve.
Significant
noise
Pump head mounting screws are
loose.
•
Tighten the screws.
Diaphragm fixing screw is loose.
•
Tighten the screw.
Diaphragm is broken.
•
Replace the diaphragm.
Bracket fixing screws are loose
•
Tighten the screws.
Eccentric shaft has worn.
•
Replace the connecting rod unit.
Contact us.
Connecting rod bearing has worn. •
Replace the connecting rod unit.
Contact us.
Motor trouble (bearing damage)
•
Replace the motor. Contact us.
