Clock
Figure 401/TASK 31-21-21-991-001
R 1EFF : 001-049, 051-061, 101-105, 1 31-21-21Page 403 1 1 May 01/05 1 1 1CES 1
Clock Figure 401A/TASK 31-21-21-991-001-A
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Subtask 31-21-21-020-050
A. Removal of the Clock
(1)
Remove the thermoformed cover from the center instrument panel.
(2)
Loosen the two screws (4). Do not remove them.
(3)
Disengage the clock (2) from its housing (1).
(4)
Disconnect the electrical connector (5).
(5)
Remove the clock (2).
(6)
Put blanking caps on the disconnected electrical connectors (3) and (5).
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Installation of the Clock (2FS)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Referenced Information -------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------31-21-00-710-002 Operational Test of the Clock **ON A/C 001-049, 051-061, 101-105,
31-21-21-991-001 Fig. 401 R **ON A/C 062-099, 106-149, 151-199, 201-299, 301-399, 401-499,
31-21-21-991-001-A Fig. 401A
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3. Job Set-up
__________
Subtask 31-21-21-865-051
A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU CLOCK/NORM/SPLY 6FS F11
**ON A/C 001-049, 051-061, 101-105, 201-203,
121VU CLOCK/STBY/SPLY 4FS N03 **ON A/C ALL
121VU CFDS/CFDIU/SPLY 2TW J18 R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
121VU CLOCK/STBY/SPLY 4FS N02 **ON A/C ALL Post SB 31-1163 For A/C 155-156,208-209,
121VU CFDS/CFDIU/BACK/UP 8TW J17 **ON A/C ALL
4. Procedure
_________
**ON A/C 001-049, 051-061, 101-105,
(Ref. Fig. 401/TASK 31-21-21-991-001)
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(Ref. Fig. 401A/TASK 31-21-21-991-001-A)
**ON A/C ALL
Subtask 31-21-21-420-050
A. Installation of the Clock
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Remove the blanking caps from the electrical connectors (3) and (5).
(4)
Make sure that the electrical connectors (3) and (5) are clean and in the correct condition.
(5)
Connect the electrical connector (5) to the clock (2).
(6)
Install the clock (2) in its housing (1).
(7)
Tighten the screws (4).
(8)
Install the thermoformed cover on the center instrument panel.
Subtask 31-21-21-865-052
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 4FS, 6FS
Subtask 31-21-21-710-051
C. Do the operational test of the clock (Ref. TASK 31-21-00-710-002)
Subtask 31-21-21-865-053
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 2TW, 8TW The time displayed on the lower ECAM display unit should be in accordance with the clock.
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5. Close-up
________ Subtask 31-21-21-942-050
A. Make sure that the work area is clean and clear of tool(s) and other items.
1EFF : ALL 1 31-21-21Page 409 1 1 May 01/01 1 1 1CES 1 CENTRALIZED FAULT DISPLAY SYSTEM (CFDS) AND DATA RECORDING SYSTEM
_________________________________________________________________ DESCRIPTION AND OPERATION
_________________________
1. General_______
A. CFDS The CFDS is a centralized maintenance aid system which gives the maintenance technicians a means to read the maintenance information related to most of the aircraft systems and to initiate the tests of these systems from the cockpit.
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