Alpha Technologies AlphaGen 5.0kW Auxiliary Power Unit - Manual (Page 52)

3. Maintenance
52
031-132-B0-001 Rev. A TM ©2000
3.11 Fan Replacement Procedure
Allow 5 minutes (per fan) for completion of procedure.
Tools required: Slotted screwdriver
Repair and/or replacement procedure:
End of Procedure
NOTE: Perform this procedure after verifying the presence of correct fan
supply voltage (12VDC). Once the voltage has been verified,
remove power from the fan circuit(s) and perform the
replacement procedure as outlined below.


1. Open the rear door of the enclosure
2. Disconnect fan wire harness.
3. Use a slotted-head screwdriver to loosen
the two captive fasteners at the bottom
of the fan and airvane assembly housing.
NOTE: During removal and
installation, verify airvane
tabs aren’t bent or
otherwise damaged.
4. Swing lower portion of assembly out.
5. Pull assembly free from opening
6. Replace with functional fan and airvane
assembly. Verify tab at top of fan/
airvane assembly engages into slot.
7. Tighten captive fasteners.
8. Reconnect fan wire harness.
9. Close rear cabinet door.