Product

Lotem^® 400 Quantum

Background

This procedure describes how to replace a cooling system fan.

Procedure

Removing the cooling fan unit

1. From the Controller application, open the front and rear doors.
2. Exit the Controller application and shut down the device.
3. Open the front and back panels.
4. From the back of the device, disconnect the grounding and fans cables.
   
5. Remove the following hex screws from the cooling fan unit:
   • Back side—remove two hex screws
   • Back top—loosen two hex screws
   • Front top—loosen two hex screws
   • Front side—remove two hex screws
6. Open the distribution box door to enable access to the three hex screws that secure the cooling fan unit to the mainframe base, and remove the three hex screws.
   Note: You need a long hex key to remove one of the screws.
   
7. From the outside of the cooling fan unit, disconnect the molexes.
   
8. Pull out the cooling fan unit.

Removing the fan

1. Remove the eight hex screws from the cooling fan unit and remove the cover.
   
2. Remove the four nuts that secure the defective fan.
   
3. Disconnect the connector from the fan motor.
   
4. Remove the fan.

Installing the new cooling fan

1. Insert the new fan.
2. Reconnect the fan motor connector.
3. To secure the new fan, insert and tighten the four nuts that you removed earlier.
4. Reinstall the cover on the cooling fan unit and secure it with the eight hex screws that you removed earlier.

Installing the cooling fan unit

1. Place the cooling fan unit in its correct position inside the platesetter.
2. From the outside of the cooling fan unit, connect the molexes that you disconnected earlier.
3. Secure the cooling fan unit to the mainframe base with the three hex screws that you removed in step 8.
4. Close the distribution box door.
5. Secure the cooling fan unit with the following hex screws:
   • Front side—insert and tighten two hex screws
   • Front top—tighten two hex screws
   • Back top—tighten two hex screws
   • Back side—insert and tighten two hex screws
6. Reconnect the grounding and fans cables.
7. Close all panels and doors.

Technical contact(s)

Content owner: Mario Amir
See the Escalation page for escalation contacts.

Date submitted

01 Nov 2004