User's Manual Part 3

Thermal Management Enclosure – continued
9-84 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004
PRELIMINARY
Table 9-51: Procedure to Remove TME
Step Action
3 Disengage circuit breaker on the affected cCLPAs.
4 Use the key to unlock both doors of the TME.
5 Disengage TME PDA circuit breakers by pulling them out.
6 At the rear of the BTS disconnect antenna cables from BTS to TME.
7 If not already done, label individual cables as they are disconnected from the rear of the BTS.
8 Remove cover and disconnect DC power cables from BTS.
9 Use screwdriver to remove two screws securing ground lug to BTS.
10 Use key to unlock the HMS draw latch door.
11 Turn latches and open HMS.
12 Disconnect ground lug by removing two nuts and washers with the driver wrench and socket.
13 Disconnect DC power and HMS controller cable from HMS to TME.
14 Lift HMS off hinge pins on TME and place on a flat surface. See Figure 4-21.
! CAUTION
Be careful not to damage louvers protecting Blower Fan.
15 Remove 5 M6 screws securing BTS to TME. See Figure 4-19.
16 Slide BTS out of TME.
17 Disconnect all conduit hubs and cabling from bottom of TME. Label conduit and cabling as necessary.
18 Remove 6 M6 screws securing TME to Wall Mounting Bracket. See Figure 4-18.
19 Lift TME off of Wall Mounting Bracket.
Install TME
Follow the procedure in Table 9-52 to install the TME.
Table 9-52: Procedure to Install TME
Step Action
1 Set the TME onto the Wall Mounting Bracket. Ensure that it rests in the slots of the Wall Mounting
Bracket. See Figure 4-17.
2 Secure the TME to the Wall Mounting Bracket using 6 M6 screws. Torque screws to 3.4 N–M (30
in–lbs). See Figure 4-18.
3 Place BTS in TME opening and slide it in.
4 Secure BTS to TME using 5 M6 screws. Torque screws to 3.4 N–M (30 in–lbs). See Figure 4-19.
table continued on next page
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