R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 33-51-38-010-050-A
C. Get Access
(1)
Put the stepladder in position:
FOR 10WL
at the left FWD passenger/crew door,
FOR 13WL
between the AFT passenger/crew doors.
(2)
Remove the ceiling panel to get access to the the emergency power-supply unit: FOR 10WL remove 221BC at the left FWD passenger/crew door (Ref. TASK 25-23-42-000-001),
(3)
Remove the lower sidewall panel to get access to the emergency power-supply unit: FOR 11WL remove 241KW at the left emergency exit(s) (Ref. TASK 25-23-44-000-001), FOR 12WL remove 242KW at the right emergency exit(s) (Ref. TASK 25-23-44-000-001). FOR 13WL
(4)
Open the ceiling filler-panel door adjacent to the ceiling panel 261CC at the left AFT passenger/crew door.
**ON A/C 301-399,
Subtask 33-51-38-010-050-B
C. Get Access
(1)
Put the stepladder in position:
FOR 10WL
at the left FWD passenger/crew door,
FOR 11WL
between the rear emergency exit doors,
FOR 12WL
between the rear emergency exit doors,
FOR 13WL
between the AFT passenger/crew doors,
FOR 14WL
between the forward emergency exit doors,
FOR 15WL
between the forward emergency exit doors.
(2)
Remove the ceiling panel to get access to the the emergency power-supply unit: FOR 10WL remove 221BC at the left FWD passenger/crew door (Ref. TASK 25-23-42-000-001), FOR 11WL remove 251KC between the rear emergency exit doors (Ref. TASK 25-23-41-000-001), FOR 12WL remove 251KC between the rear emergency exit doors (Ref. TASK 25-23-41-000-001), FOR 14WL remove 231JC between the forward emergency exit doors (Ref. TASK 25-23-41-000-001), FOR 15WL remove 231JC between the forward emergency exit doors (Ref. TASK 25-23-41-000-001),
(3)
Lower one side of the emergency oxygen container and remove the ceiling panel to get access to the emergency power-supply unit: FOR 13WL
-disengage and lower one side of the emergency oxygen container 33WR between the AFT passenger/crew doors (Ref. TASK 35-21-41-000-001),
NOTE : Do not disconnect the electrical connector of the emergency
____
oxygen container.
-remove the ceiling panel 261CC at the left AFT passenger/crew door (Ref. TASK 25-23-42-000-002).
**ON A/C ALL
4. Procedure
_________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 401/TASK 33-51-38-991-001-A)
Emergency Power-Supply Unit Figure 401/TASK 33-51-38-991-001-A
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 33-51-38Page 405 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R **ON A/C 301-399,
R (Ref. Fig. 401A/TASK 33-51-38-991-001-B)
R **ON A/C ALL
Subtask 33-51-38-020-051
A. Removal of the Emergency Power-Supply Unit (EPSU)
(1) Disconnect the electrical connector (2) from the emergency power-supply unit (1).
(2) Put blanking caps on the disconnected electrical connectors.
(3) Remove the screws (3) and the washers (4) from the emergency power-supply unit (1).
(4) Remove the emergency power-supply unit (1).
(5) Remove the screws (5) from the battery (6).
(6) Carefully remove the battery (6) from the emergency power-supply unit (1).
(7) Keep the battery (6) and/or the spare batteries under work shop conditions connected to a constant power source (Ref. CMM 335107).
R Emergency Power-Supply Unit
R Figure 401A/TASK 33-51-38-991-001-B
R 1EFF : 301-399, 1 33-51-38 Page 407
1 1 May 01/04
1 1
1CES 1
TASK 33-51-38-400-001
Installation of the Emergency Power-Supply Unit (EPSU)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific stepladder 1.5 m (4 ft. 11 in.)
B. Referenced Information
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REFERENCE DESIGNATION
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