8-10  Routine Maintenance and Repair   
DC590+ Series DC Digital Drive 
Replacing a Fan (Frame 6) 
There are two fans mounted inside the base of each Phase Assembly. These are hard-wired together and are supplied as an assembly. Replacement of 
both fans is easy and should take about 15 minutes. 
Removal 
1.  Remove the four screws that hold the bottom fan grille in place. 
2.  Remove the two screws from each fan. 
3.  Trace the route of the fan cable back to the front of the phase assembly and remove the fan 
connector from the phase assembly.  
4.  Remove the fans and cable assembly from phase assembly. 
5.  Fit the two fans to the phase assembly and secure with the screws. Hand-tighten. 
6.  Fit the new fan connector to the front of the phase assembly.