Replacing the Forced Cooling Fan Malfunction

WARNING
hazard of overheating The cubicle can be operated on maximum performance without cooling fan maximum 30 minutes. Otherwise, the power must be reduced to 3150 A. Failure to follow these instructions can result in death, serious injury, or equipment damage.

CAUTION
HAZARD OF INAPPROPRIATE OPERATION Before starting the process, make sure to follow the safety instructions given in Safety Precautions Failure to follow these instructions can result in injury or equipment damage.

If there is an active cooling fan malfunction, it is allowed to switch the cooling fan with the separator sheet to the other one while the cubicle is in powered condition.

For the replacement of the old cooling fan to a new cooling fan, shutdown the system and follow the below given instructions:

• The cooling fan switching process is approximately 10 minutes.

Step 1:

1. Remove the M6 x 18 bolt accessible from one side of the fan support to switch the operating fan.

   NOTE: The images shown below are only for reference, the cooling fan direction might vary depending on the requirement.
   

2. Loosen the plate underneath the fans after removing the bolt.

3. Pull out the plate underneath the fans.

   

Step 2:

1. Remove the two-lock nut with spring washer of the secondary box of the cooling fans using ratchet wrench 10.

   

2. Remove the M6 x 20 bolt and washer from the bottom side of the fan support using an allen key of 4 mm.

3. Remove the secondary box of the cooling fans.

4. Disconnect the wiring plugs between the secondary box and the cooling fan.

Step 3:

1. Remove the 12 M6 x 16 bolts from the broken fan using a ratchet wrench size 10 and hand wrench size 10.

   

2. Disconnect the wiring plugs, and remove the cooling fan device from its support.

3. Remove the side cover grid (1) from both sides and assemble them onto the new fan with a help of screwdriver, before installing the new fan.

   

   1	Side cover grid

4. Check for the presence of cables and the plug with the help of allen key 3 mm on the new fan before installing.

Follow the above Steps in reverse order to install the new forced cooling fan.