R **ON A/C 001-049, 101-105, 151-158, 201-209,
3. Job Set-up
__________
Subtask 33-51-39-860-056
A. Aircraft Maintenance Configuration
(1)
Make sure that the EMER EXIT LT switch 4WL on the overhead panel 25VU is in the OFF position.
(2)
Make sure that the LIGHT EMER pushbutton switch and its integral light on the forward attendant panel 120RH are off.
Subtask 33-51-39-865-057
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU LIGHTING/EMER LT/CABIN 2WL H06 49VU LIGHTING/EMER LT/CABIN 1WL H05
R **ON A/C 001-049, 101-105, 201-209,
Subtask 33-51-39-010-055-A
C. Get Access
(1)
Make sure that the STEPLADDER 1.5 M (5 FT) is in position: FOR 110WL1 in Zone 221, FOR 110WL3 in Zone 262.
(2)
Make sure that the AFT curtain rail is removed to get access to the access panel 262VW (Ref. TASK 25-26-41-000-003): FOR 110WL3
(3)
Make sure that the access panel is removed:
FOR 110WL1
221BC (Ref. TASK 25-23-42-000-001),
FOR 110WL2
241AW (Ref. TASK 25-23-44-000-001),
FOR 110WL3
262VW (Ref. TASK 25-23-45-000-004).
**ON A/C 151-158,
Subtask 33-51-39-010-055
C. Get Access
(1)
Make sure that the STEPLADDER 1.5 M (5 FT) is in position: FOR 110WL1 in Zone 221, FOR 110WL3 in Zone 262.
(2)
Make sure that the AFT curtain rail is removed to get access to the access panel 262VW (Ref. TASK 25-26-41-000-003): FOR 110WL3
(3)
Make sure that the access panel is removed:
FOR 110WL1
221BC (Ref. TASK 25-23-42-000-001),
FOR 110WL2
241GX (Ref. TASK 25-23-44-000-001),
FOR 110WL3
262VW (Ref. TASK 25-23-45-000-004).
R **ON A/C 001-049, 101-105, 151-158, 201-209,
4. Procedure
_________
R **ON A/C 001-049, 101-105, 201-209,
(Ref. Fig. 401/TASK 33-51-39-991-001)R **ON A/C 151-158,
R (Ref. Fig. 401B/TASK 33-51-39-991-001-A) R **ON A/C 001-049, 101-105, 151-158, 201-209,
Subtask 33-51-39-420-054
A. Installation of the Battery of the Power-Supply Unit (LSI)
(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 of the replacement battery pack (6) and the snap connector (9).
(4)
Make sure that the electrical connectors are clean and in the correct condition.
(5)
Install the battery pack (6) with the correct position of the connector (9) into the body (5) of the power-supply unit (4).
(6)
Put the cover (7) in its correct position on the body (5) of the power-supply unit (4).
(7) Install the screws (8) in the cover (7).
Subtask 33-51-39-865-058
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1WL, 2WL.
Subtask 33-51-39-710-052
C. Do the operational test of emergency escape-path marking-lights (Ref. TASK 33-51-00-710-002).
5. Close-up
________
R **ON A/C 001-049, 101-105, 201-209,
Subtask 33-51-39-410-052-A
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the access panel:
FOR 110WL1
221BC (Ref. TASK 25-23-42-400-001),
FOR 110WL2
241AW (Ref. TASK 25-23-44-400-001),
FOR 110WL3
262VW (Ref. TASK 25-23-45-400-005).
(3)
Install the curtain rail: FOR 110WL3 install the AFT curtain rail (Ref. TASK 25-26-41-400-003).
(4)
Remove the stepladder.
(5)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
**ON A/C 151-158,
Subtask 33-51-39-410-052
A. Close Access
(1)
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