Ulvac DA-20D Series, Инструкция по эксплуатации

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8.5 TROUBLESHOOTING
Table 4. TROUBLESHOOTING
Possible cause Corrective action
Improper
pump rotation
or no start
1. Power line trouble Repair.
2. Faulty power switch Correct poor contact or connection.
3. Voltage drop Adjust line voltage and examine power cable.
4. Cord broken Repair or replace.
5. Connecting rod locked Disassemble pump head and check inside.
6. Breaker is activated. Locate cause.
7. Bearing faulty
＊
Replace.
8. Thermal protector is
activated.
Turn OFF power and eliminate cause of
trouble.
9. Low temperature
atmosphere
Keep temperature within 7~40°C range.
10. Starting the pump in
case its inside is
vacuum pressure.
Vent pump to atmospheric pressure.
Height above sea level during storage and
installation 1000m or less.
Unusual sound
1. Bearing damaged
＊
Replace
2. Diaphragm broken Replace.
3. Motor damaged
＊
Replace.
Inadequate
Pump
Performance
1. Diaphragm damaged Replace.
2. Suction/exhaust valve
damaged
Replace.
3. Leak in suction pipe Clean or replace.
4. Voltage drop Adjust voltage or improve power circuit.
5. In ambient temperature
adequate
Keep temperature within 7°~40°C range.
6. Leak in piping or
connection
Check location of leak, diameter and length of
piping, and repair.
The maintenance of the items marked with
＊
are undertaken by ULVAC KIKO.
9. STORAGE
Turn OFF the power switch, unplug the power cord, attach the cap to the suction/exhaust ports and
store the pump in a place as free from dust and moisture as possible.