User's Manual Part 2

Maintenance 3EM21522AAAA
DTR-0200-SA-SIRIUS Issue 1, March 2008
6-22
STEP PROCEDURE
REMOVAL
1 Open front and rear doors
a To Open Front Door
Release two locking screws then release two door latches.
b To Open Rear Door
Release one locking screw then release two door latches.
2 Coordinate with NMC and switch repeater to Local operating condition.
3 Switch OFF all repeater PDU circuit breakers switching main breaker
last.
4 Switch OFF commercial power source breaker supplying power to
repeater.
5 Hang “DANGER – DO NOT TURN ON – PERSONNEL WORKING” sign at
commercial power source breaker.
6 Disconnect and remove power wires from fan terminal block (see Figure
6 - 7).
7 Remove retaining hardware from fan mounting studs.
8 Remove fan from mounting studs.
Figure 6 - 7 Fan Terminal Block