(2)
Open the access door 811.
4. Procedure
_________ (Ref. Fig. 401/TASK 26-17-34-991-001) Subtask 26-17-34-020-050
A. Remove the Smoke Detection Control Unit (SDCU)
(1)
Loosen the knurled nut (4), and disengage it from the control unit (1).
(2)
Remove the control unit (1) from the support (2).
(3)
Put blanking caps on the electrical connector on the control unit (1) and on the receptacle on the rack (2).
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Smoke-Detection Control Unit
Figure 401/TASK 26-17-34-991-001
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Installation of the Smoke-Detection Control Unit (SDCU) (10WQ)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific access platform 1 m (3 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from
the External Power
R 26-16-00-710-001 Operational Check of Cargo-Compartment
R Smoke-Detection by PTT
26-17-00-710-001 Operational Test of the Lavatory Smoke-Detection System 26-17-34-991-001 Fig. 401
3. Job Set-up
__________
Subtask 26-17-34-860-051
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).
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B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR COND/SDCU/CHAN1 11WQ C06 122VU AIR COND/SDCU/CHAN2 12WQ T18
Subtask 26-17-34-860-050
C. Make sure that the access platform in position. Subtask 26-17-34-010-051
D. Make sure that the access door 811 is open.
4. Procedure
_________ (Ref. Fig. 401/TASK 26-17-34-991-001) Subtask 26-17-34-420-050
A. Install the Smoke Detection Control Unit (SDCU)
(1)
Remove the blanking caps from the electrical connector on the control unit (1) and from the receptacle on the rack (2).
(2)
Put the control unit (1) on the rack (2).
(3)
Push the control unit (1) to engage the connector (3).
(4) Attach the control unit (1) to its rack (2) with the knurled nut (4). Subtask 26-17-34-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 11WQ, 12WQ
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Subtask 26-17-34-710-050
C. Do an operational test of the control unit. (Ref. TASK 26-17-00-710-001) R **ON A/C 004-049, 051-099, 101-105, 151-199, 201-299,
Subtask 26-17-34-710-050-A
C. Do an operational test of the control unit (Ref. TASK 26-17-00-710-001) (Ref. TASK 26-16-00-710-001).
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
5. Close-up
________
Subtask 26-17-34-862-050
A. Put the aircraft back to its initial configuration.
(1) De-energize the ground service network (Ref. TASK 24-42-00-862-001). Subtask 26-17-34-410-050
B. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 811
(3)
Remove the access platform.
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