Omron SYSDRIVE 3G3JV User Manual page 197

Maintenance Operations
D Replacing Cooling Fan (68- or 140-mm-wide Inverters)
1. Press the left and right sides of the fan cover located on the lower part of the radiation fin in the arrow
1 directions. Then lift the bottom of the Fan in the arrow 2 direction to remove the Fan as shown in the
following illustration.
2. Hold the fan wire and pull the protective tube of the cover in the arrow 3 direction.
3. Slide the protective tube and remove the internal connector.
4. Remove the Fan from the fan cover.
5. Mount the new Fan on the fan cover. At this time, make sure that the wind direction of the Fan will be
in the direction of the heat radiation fin.
6. Attach the connector, cover the connector with the protective tube, and insert the connector into the
cover.
7. Mount the fan cover with the new Fan to the lower part of the heat radiation fin. Make sure that the
fan cover snaps on securely with the heat radiation fin.
D Replacing Cooling Fan of 108-mm-wide Inverter Model
1. Dismount the front cover, bottom cover, and fan connector CN4.
Cooling fan connector
(CN4 built in)
Wiring groove
8-18
Radiation fin (Heat sink)
Wind direction
Protective tube
There is a connector inside.
Fan wind direction
Fan wind direction
Heat radiation fin (Heat sink)
Chapter 8