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Replacement Procedure of Suction Fan

The status requiring fan replacement:
 When Alarm message(fan fault) on RMU and fault LED(yellow) of failed detector turns ON, then Fan cleaning or replacement is required as followings.

Refer to the pictures left side for
replacement.
1. Turn the detector power (main power of RMU) off.
2. Disconnect connectors of electric cables from      the detector after turn left detector and remove the
    detector from the engine.
3. Open the detector front cover by unscrewing front
    4 M3 bolts and dismantle the sensor unit by     unscrewing up 4 M3 bolts.
4. Remove the fan from the main body.
5. Replace fan with new one and take same
    procedure inversely for safe wire reconnection and
    screwing.

 

Sensor Cleaning Procedure

The status requiring sensor Cleaning:
 When Alarm message(contamination fault) and fault LED(yellow) of failed detector turns ON then 3 protecting glasses cleaning of internal sensors are required as followings.

Refer to the pictures right side.
1. Open the detector front cover same as above
    item 1, 2.
2. Open the sensor unit cap by hand.
3. Clean 3 glasses of sensor by cotton tip or
    clean cloth (equivalent cloth for glasses).
4. During this work, please do not scratch to
    3 glasses of sensor.
    If did, sensor elements may be deteriorated
    permanently.
5. Use auto zero function to reset the detector for
    zeroing.