ï¿ Recommended annual maintenance actions by the user
DescriptionAction
Quality of supply voltageP
Spare partsI
Capacitor reforming, spare modules and spare Capacitors (page 107)
P
Tightness of terminalsI
Dustiness, corrosion or temperatureI
Heatsink (page 103) cleaning
P
ï¿ Recommended maintenance action by the user
The table below shows the intervals for the preventive maintenance tasks allowed for the
customer. For other maintenance tasks, consult your local ABB Service representative, or
see the complete maintenance schedule on the Internet.
Years from start-upMaintenance task/object
...1211109876543210
Cooling fans
R(R)R(R)
Main cooling fan (R0… R8). See
Fans (page 103).
(R)(R)
RRRR
Auxiliary cooling fan for circuit boards
(R6…R8). See Replacing the auxiliary
cooling fan, frames R6...R8 (page 106).
(R)(R)(R)(R)
Connections and environment
OOOOOOOOOOOOOQuality of supply voltage
Improvements
IIIIBased on product notes
(I)(I)(I)(I)
Spare parts
IIIIIIIIIIIIISpare part stock
(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)
OOOOOOOOOOOOO
Reforming of DC circuit capacitors (spare
modules and spare capacitors). See section
Capacitors (page 107).
Other tasks
IIIIIIIIIIIIIChecking tightness of cable and busbar
terminals. Tightening if needed.
(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)
IIIIIIIIIIIIIChecking ambient conditions (dustiness,
moisture, temperature)
(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)(I)
OOOOOOOOOOOOO
Cleaning the heatsink. See section Heat-
sink (page 103).
(O)(O)(O)(O)(O)(O)(O)(O)(O)(O)(O)(O)(O)
102 Maintenance and hardware diagnostics