CHIWAI Quan Wei, Инструкция по использованию и обслуживанию, Страница: 75 / 90

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6) Replacement of lubricants.
7) The motor is lubricated with grease.
8) Check the movement of the contact.
9) Check that the voltage-differential switches are working properly.
7.1.6 Every 20000 hours or 4 years:
1) Check the body bearing and oil seal or replace.
2) Measuring motor insulation should be above 1m Ω.
7.2 Additional form
：
malfunction shooting table
Project Malfunction situation Malfunction cause Solution method
（
1
）
Unable to start
(electrical failure
primarily)
1. Fuse burn.
2. Protective relay action.
3. Starting relay fault.
4. Bad contact with starting
button.
5. Voltage is too low.
6. Motor fault.
7. Body fault.
8. Under-phase protector relay
action.
9. Pressure or temperature
sensor breakage
1. Please replace the electrical personnel.
2. Please replace the electrical personnel.
3. Please replace the electrical personnel.
4. Please replace the electrical personnel.
5. Please replace the electrical personnel.
6. Please replace the electrical personnel.
7. Manual body, if you can not turn,please
takes a phone call to us.
8. Check power cord and contacts.
9. Troubleshooting or replacing after checking
field faults in operation parameters.
（
2
）
High running current,
compressor tripping.
Voltage is too low.
Exhaust pressure is too high.
Incorrect specification of
Lubricating oil or ageing
thickening.
Oil separator clogging (high
lubricating oil pressure).
Compressor mainframe fault
Electrical personnel please.
Check the pressure, such as exceeding the set
pressure; check the set value and pressure
sensor.
Replace new oil.
Replace oil separator.
If you can not turn, please contact Quan Wei
Company Service Unit
（
3
）
Operating electricity
below normal
1. Too much air consumption
(the pressure runs below the
set value).
Check the consumption and increase the
compressor if necessary.
Clean or replace.