ABB DCT880 - 3-Year Preventive Maintenance; Additional actions for 3-year maintenance

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3 years preventive maintenance
Following additional actions have to take place:
− Check the tightness of all terminals.
All connections should be inspected and
checked for tightness.
− Check the condition of the contactors and
relays.
Contactors and relays should be checked
for proper function.
Preventive Maintenance
3ADW000449R0101 DCT880 Service Manual e a