(b)  
Open the access door for the disk drive on the data loader.

 (c)  
Push the eject button and remove the plastic head protection diskette from the ADL.

 S 864-017
 (4) Remove the DO-NOT-CLOSE tag and close this circuit breaker:
 (a)  P6 Main Power Distribution Panel
 1) 6L35 FMCS DATA BASE

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 (5)  S 714-016Make sure the HRDW indicator on the data loader is not on.
 NOTE:____ The ADL will do a self-test when it is energized. If the self-test fails, the HRDW indicator will continue to show a failure.
 (6)  S 844-026Do the "Remove Electrical Power" task (Ref 24-22-00/201).

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 FLIGHT MANAGEMENT COMPUTER MASTER RELAY - REMOVAL/INSTALLATION
______________________________________________________________
 1.  General
_______
 A.  This subject has two tasks. The first task is to remove the FMC Master Relay.
 B.  The second task is to install the FMC master relay. This task includes a test of the installed FMC master relay.
 C.  The FMC master relays are installed on the E2 electronic equipment rack in the main equipment center. The relays are aft of the black box mounting racks and you must get access from the cargo compartment.
 TASK 34-61-05-024-024
 2.  FMC Master Relay Removal
________________________
 A.  References
 (1)  24-22-00/201, Manual Control
 B.  Access
 (1)  Location Zone
 118 Electronic and Electrical Compartment
 221 Control Cabin, LH
 222 Control Cabin, RH

 C.  Procedure
 S 864-002
 (1)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  P7 overhead circuit breaker panel
 1) 7C1 FMCS FMC L
 2) 7C5 FMCS MASTER SW
 3) 7C23 FMCS FMC R

 (2)  
Do the "Remove Electrical Power" task (Ref 24-22-00/201).

 S 014-015

 (3)  
Remove the cargo partition panel from the aft side of the E2 electrical equipment rack:

 S 864-025
 (a) Remove 16 bolts from the cargo partition panel.
 NOTE: The bolts will be necessary when you install the cargo
____
 partition panel.

 (b)  Remove the cargo partition panel.
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ELECTROSTATIC E2-2 GROUND WIU PANEL RECEPTACLE SEE

ESD WRIST STRAP

ESD WRIST STRAP

FMC MASTER RELAYS (BEHIND WIU PANEL)
SEE

AFT SIDE OF ELECTRICAL AND ELECTRONIC RACK
(CARGO PARTITION PANEL NOT SHOWN)

ELECTROSTATIC SENSITIVE DEVICE
FMC Master Relays Figure 401 (Sheet 1)
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