IF08CZ10 April, 2019 - 6 -
INSPECTIONS AND MAINTENANCE
(cont’d)
Recommended Parts to be Regularly Renewed
To use the drive for a maximum period of time, it is necessary to regularly renew (replace)
components whose characteristics have deteriorated. The table below shows the parts used for the inverter
equipment whose regular renewal is recommended for critical applications and their recommended renewal
period. We always recommend that spares be on hand to reduce down time.
Product name Recommended
renewal period
Remarks
Cooling fan
7 years Sooner if dust or dirt
damages bearings
Air filter 6 months Can also be cleaned.
Aluminum Electrolytic
Capacitors
On Circuit Boards
7 years
Contact Toshiba for
replacement of these
devices
Oil-filled capacitor
Main circuit
20 years
Control power supply 7 years
Fuse Main circuit 7 years
Control circuit 7 years
CAUTION