Park Air Systems 6525, Пользовательская документация

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31-3MDR00HB Page 54 Maintenance
Draft
Removing and Refitting the Cooling Fan
The cooling fan is at the rear of the MDR as shown in Fig 13 .
The part number of the fan is: 69J1208314H
Fig 13 Cooling Fan Removal
Removal
Before attempting to remove the fan, ensure that the MDR is isolated from the ac input supply. Then
proceed as follows:
(1) Disconnect the two-pin power connector.
(2) Remove the fan's finger guard.
(3) Using an Allen key, inserted through the holes in the fan exposed with the finger guard removed,
remove the four M4 x 12 mm caphead Allen screws that secure the fan to the PA module
heatsink.
(4) Remove the fan from the PA module.
Refitting
To refit the cooling fan, proceed as follows:
(1) Locate the fan in position and using a suitable Allen key inserted through the holes for the fan's
finger guard, secure using the four M4 x 12 mm caphead Allen screws.
(2) Secure the finger guard to the fan.
(3) Connect the 2-pin fan connector to the fan. Ensure the + marked socket mates with the + marked
plug on the fan.
(4) Re-establish the ac supply.
(5) Switch power on at the MDR using the rear mounted Power switch.
(6) Ensure the front panel Ready indicator is lit and the Alarm indicator is unlit.
Power
Connector
Finger
Guard