52-71-00
ALL ú ú 08 Page 517 ú Jun 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
b) Two green CLOSED lights on the Nose Cargo Door Closed Annunciator panel are on and two amber NOT CLSD lights are off.
c) All lights on the Nose Cargo Door Control panel are off.
d) The caution message DOOR NOSE CARGO is not shown on EICAS.
e) After 60 seconds the status message DOOR NOSE CARGO does not show on EICAS.
TASK 52-71-00-825-013
7. Adjust the Door Warning System
______________________________
A. Standard Tools and Equipment
(1)
Multi-meter (use to measure continuity)
B.
References
(1)
24-22-00/201, Manual Control
(2)
AMM 52-11-01/501, Main Entry Doors No. 1
(3)
AMM 52-11-09/501, Main Entry Door No. 5
(4)
AIPC 52-75-01, Fig. 2
(5)
AIPC 52-75-01, Fig. 4
(6)
SSM 52-71-01
(7)
WDM 52-71-13, WDM 52-71-14
C.
Access
(1)
Location Zone 118 Forward (Main) and Center Electronic Bay Access Doors 211 Main Deck, Nose to First Door, LH 224 Upper Deck Crew Rest, RH 271 Main Deck STA 2040 To STA 2360, LH
(2)
Access Panel 117A Door - Electronics Compartment Access 125B Door - Electronics Access 831L Door - No. 1 Main Entry, LH 835L Door - No. 5 Main Entry, LH 849R Door - Upper Deck Crew Service
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52-71-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
D. Procedure
S 915-014
(1)
Supply electrical power (AMM 24-22-00/201).
S 825-016
(2)
Adjust the main entry door switch (Fig. 501).
(a)
Remove the door warning switch cover.
(b)
Remove the screws that hold the switch bracket to the latch fitting.
(c)
Refer to the switch adjustment chart to set the length of the switch plunger.
NOTE: This dimension is from the face of the mounting
____ bracket to the end of the plunger.
(d)
Install the switch on the latch cam.
(e)
Make sure the length of the switch plunger is as shown in the switch adjustment chart.
NOTE: This dimension is from the track in the latch fitting
____
to the end of the plunger.
(f)
Install the cover on the switch with the cover screws.
(g)
Do a test of the warning switch for the applicable main entry door. 1) Make sure the door is open. 2) Make sure the message for the door shows on EICAS.
a) DOOR ENTRY L1
b) DOOR ENTRY L5 3) Close the door. 4) Make sure the message for the door does not show on EICAS.
S 825-078
(3) If the test of the door warning switch is not satisfactory, adjust the door latches (AMM 52-11-01/501, Door 1 or AMM 52-11-09/501, Door 5).
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