IWAKI PUMPS PDS-105 RA, Инструкция по эксплуатации

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Troubleshooting
This section describes troubleshooting, inspection, specification and dimensions.
Points to be observed
Observe the following points during maintenance work.
•
Follow instructions in this manual for replacement of wear parts. Do not disassemble the
pump beyond the extent of the instructions.
• Always wear protective clothing such as an eye protection, chemical resistant gloves, a
mask and a face shield during disassembly, assembly or maintenance work. The spe-
cific solution will dictate the degree of protection. Refer to MSDS precautions from the
solution supplier.
• Solution in the discharge line may be under pressure. Release the pressure from the
discharge line before disconnecting plumbing or disassembly of the pump to avoid solu-
tion spray.
• Risk of electrical shock. Be sure to turn off power to stop the pump and related devices
before service is performed.
Troubleshooting
First check the following points. If the following measures do not help remove problems, con-
tact your distributor.
States Possible causes Solutions
The pump does not
run.
Faulty wiring • Correct wiring and resume operation.
Power-supply voltage is too low. • Observe the rated voltage of the pump.
Motor failure • Check the motor. Replace as necessary.*
Liquid can not be
pumped up. Air ingress through a suction line. • Reroute piping.
A failed O ring seal. • Check O rings. Replace as necessary.*
Foreign matters are stuck in the flow
path in the pump head or piping. • Dismantle, inspect and clean the pump
head or piping. Replace as necessary.*
Malfunction of an air-operated valve. • Check the valve. Replace as necessary.
A check valve (pump head valve) is
stuck on a valve seat. • Dismantle, inspect and clean the valve.
Replace as necessary.*
A flow rate fluctuates. Foreign matters are stuck in a pipe
line. • Dismantle, inspect and clean the line.
Replace as necessary.
Air stays in the pump head or in a pipe
line. • Expel air.
A check valve (pump head valve) is
stuck on a valve seat. • Dismantle, inspect and clean the valve.
Replace as necessary.*
A failed O ring seal. • Check O rings. Replace as necessary.*
A hydraulic fluid leak • Check for a leak. Replace as necessary.*
Motor failure • Check the motor. Replace as necessary.*
Sensor signal is not
outputted. Faulty wiring • Correct wiring and resume operation.
Sensor failure • Check a sensor. Replace as necessary.*
* Solutions marked with * are conducted by us.
Maintenance