WEG SSW-03 Plus Series - Preventive Maintenance

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7
MAINTENANCE
Table 7.3 - Periodical Inspections after the commissioning
Note:
(1) We recommend to replace the fans after each 40,000
hours of operation.
(2) Every 6 months.
(3) Twice per month.
COMPONENT
PROBLEM
CORRECTIVE ACTION
Terminals, connectors
Fans (
1
)/ cooling System
Printed circuit boards
Power Module/
Power Connections
Power Resistors
Loose screws
Loose connectors
Fans are dirt
Abnormal acoustic noise
Abnormal vibration
Dust in the air filter
Dust, oil, moisture
accumulation, etc.
Smell
Dust, oil, moisture
accumulation, etc.
Connection screws are loose
Discoloration
Smell
Tighten them (2).
Clean them.(2)
Replace the fan.
Clean or replace it.(3)
Clean them.(2)
Replace them.
Clean them.(2)
Tighten them (2).
Replace them.