(2)
Open the access door 811.
4. Procedure
_________
**ON A/C 001-049, 051-061, 101-105, 201-203,
(Ref. Fig. 401/TASK 21-31-34-991-001) R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
(Ref. Fig. 401A/TASK 21-31-34-991-001-A)
Cabin Pressure Controller
Figure 401/TASK 21-31-34-991-001
R 1EFF : 001-049, 051-061, 101-105, 201-203, 1 21-31-34Page 403 1 1 May 01/05 1 1 1CES 1
Cabin Pressure Controller Figure 401A/TASK 21-31-34-991-001-A
R 1EFF : 062-099, 106-149, 151-199, 204-299, 1 21-31-34Page 404 1301-399, 401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 051-061, 101-105, 201-203,
Subtask 21-31-34-020-050
A. Removal of the Cabin Pressure Controller
(1)
Install the protective cap (6) on the pressure port of the controller (1).
(2)
Loosen the nut (4).
(3)
Lower the nut (4).
(4)
Pull the cabin pressure controller (1) on its rack (3) to disconnect the electrical connector (2).
(5)
Remove the cabin pressure controller (1) from its rack (3).
(6) Put blanking caps on the disconnected electrical connectors. R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
Subtask 21-31-34-020-050-A
A. Removal of the Cabin Pressure Controller
(1)
Install the protective caps (6) on the pressure ports of the controller (1).
(2)
Loosen the nut (4).
(3)
Lower the nut (4).
(4)
Pull the cabin pressure controller (1) on its rack (3) to disconnect the electrical connector (2).
(5)
Remove the cabin pressure controller (1) from its rack (3).
(6)
Put blanking caps on the disconnected electrical connectors.
**ON A/C ALL
TASK 21-31-34-400-001
Installation of the Cabin Pressure Controller (11HL,12HL)
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
-------------------------------------------------------------------------------
21-31-00-710-002 Operational Test of the Pressure Control and Monitoring 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
**ON A/C 001-049, 051-061, 101-105, 201-203,
21-31-34-991-001 Fig. 401 R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
21-31-34-991-001-A Fig. 401A **ON A/C ALL
3. Job Set-up
__________
Subtask 21-31-34-860-050
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).
Subtask 21-31-34-865-052
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 11HL
49VU AIR COND/CAB/PRESS/CTL1 1HL D09 122VU AIR COND/CAB PRESS/CTL/MAN 3HL Y23
FOR 12HL 122VU AIR COND/CAB PRESS/CTL/MAN 3HL Y23 122VU AIR COND/CAB PRESS/CTL/2 2HL Y22
Subtask 21-31-34-010-052
C. Get Access
(1)
Make sure that the access platform is in position at the access door
811.
(2)
Make sure that the access door 811 is open.
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