ADC 19717-A User Manual

Page 31

ADCP-75-169 • Issue 1 • June 2004

Page 23

Figure 21. Host Unit Fan/Grill Assembly Removal

6. Lift the small latch on each wiring harness connector and carefully unplug each connector

from the circuit board connector.

7. Remove the plastic rivets that secure each fan to the grill by pushing outward on the rivet

center post until the rivet can be withdrawn from the grill as shown in

Figure 22. Removing Host Unit Fans From Grill

8. Remove both fans from the grill

9. Use the rivets removed in step 7 to secure the replacement fans to the grill. Orient each fan

so the wiring harness is on the top and the arrow on the fan points into the enclosure.

10. Connect the two wiring harness connectors to the circuit board connectors.

11. Secure the fan/grill assembly to the side of the enclosure (see

) using the six flat-

head screws removed in step 4.

12. Place the HU On/Off switch in the ON position (press I).

13. Verify that the fans run properly following power-up.

14. Notify the NOC or alarm monitoring system operator that the system is going back online.

17873-A

16173-B