7.4 Cooling Fan and Circulation FanYASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 387Periodic Inspection &Maintenance7 Cooling Fan Replacement: 2A0110 and 2A0138, 4A0058 and 4A0072WARNING! Electrical Shock Hazard. Do not connect or disconnect wiring while the power is on. Failure to comply can result in seriouspersonal injury. Before servicing the drive, disconnect all power to the equipment. The internal capacitor remains charged even afterthe power supply is turned off. After shutting off the power, wait for at least the amount of time specified on the drive before touchingany components.CAUTION! Burn Hazard. Do not touch a hot drive heatsink. Failure to comply could result in minor or moderate injury. Shut off thepower to the drive when replacing the cooling fan. To prevent burns, wait at least 15 minutes and ensure the heatsink has cooleddown.NOTICE: Prevent Equipment Damage. Follow cooling fan and circulation fan replacement instructions. Improper fan replacementcould result in damage to equipment. When installing the replacement fan into the drive, make sure the fan is facing upwards. Toensure maximum useful product life, replace all fans when performing maintenance. Removing the Cooling Fan1. While pressing in on the hooks located on the left and right sides of the fan cover, free the fan cover leading bylifting the back end first.Figure 7.8Figure 7.8 Removing the Cooling Fan Cover: 2A0110 and 2A0138, 4A0058 and 4A00722. Lift the fan cover out leading with the back end. Unplug the replay connector and free the fan cover from thedrive.Figure 7.9Figure 7.9 Removing the Cooling Fan: 2A0110 and 2A0138, 4A0058 and 4A0072Lift the fan cover out of the driveleading with the back end.