7.3 Corrective Maintenance
When it is necessary to replace or repair malfunctioning components the whole CEDD
®
HPS Basestation
must be de-installed and returned to TKH Airport Solutions Customer Service.
If a fan needs to be replaced, the replacement must be done by a TKH Airport Solutions service engineer.
To de-install and replace the CEDD
®
HPS Basestation, follow the instructions below.
7.3.1 Replacing a CEDD
®
HPS Basestation
If the CEDD
®
HPS Basestation is not properly de-energized there is a risk of electrical
shock.
The following tools are needed:
•
Phillips PH2 screwdriver
•
Slotted SL3 screwdriver
•
Ratcheting socket wrench (or equivalent) with M4 (7 mm) hex socket
•
Open-ended wrench 10 mm
Perform the following steps to replace a CEDD
®
HPS Basestation:
1.
Switch off the Power AC mains and Logic AC mains to de-energize the CEDD
®
HPS Basestation.
Wait at least 15 minutes after de-energizing the CEDD
®
HPS Basestation.
2.
Check the warranty seal.
If the warranty seal is broken, the warranty is void.
3.
Remove the bottom panel by loosening two screws at the front using a Phillips PH2 screwdriver.
Detach the protective earth wire.
28
Installation and Maintenance Manual - CEDD
®
HPS Basestation
©
TKH Airport Solutions 2022. All rights reserved. All specifications subject to change without notice.
