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Isolation Unit
Figure 401/TASK 23-44-42-991-001
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Isolation Unit
Figure 402/TASK 23-44-42-991-002
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Isolation Unit
Figure 403/TASK 23-44-42-991-003
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Isolation Unit
Figure 404/TASK 23-44-42-991-004
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Isolation Unit
Figure 405/TASK 23-44-42-991-005
R 1EFF : 106-149, 301-399, 401-499, 1 23-44-42Page 408 1 1 Aug 01/05 1 1 1CES 1 Subtask 23-44-42-020-050
A. Removal of the Isolation Units
(1)
Disconnect the wires of the cable harness (1) from the connector of the PC-board (2).
(2)
Cut and remove the lockwire from the clamp screw (7).
(3)
Loosen the clamp screw (7) and remove the end clamp (8) from the mounting rail (3).
(4)
Remove the PC-board bracket (6) together with the PC-board (2) from the mounting rail (3).
(5)
If required, remove the nuts (4) and the washers (5) to disassemble the PC-board (2) from the PC-board bracket (6).
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Installation of the Isolation Units
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific red blanking plugs FOR FIN 4RJ3, 4RJ4 No specific access platform 2.0 m (6 ft. 7 in.) FOR FIN 4RJ5 No specific access platform 3.5 m (11 ft. 6 in.)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific lockwire, corrosion-resistant steel, dia 0.63mm
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
23-44-00-700-001 Operational Test of the Service Interphone FOR FIN 4RJ2 52-41-00-410-002 Close the Avionics Compartment Doors after Access FOR FIN 4RJ3, 4RJ4 25-54-12-400-001 Installation of the FWD Cargo Compartment Partition
FR34 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
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3. Job Set-up__________
Subtask 23-44-42-860-050
A. Aircraft Maintenance Configuration
R (1) FOR 4RJ1
(a) Make sure that the access door 822 is opened.
R (2) FOR 4RJ2
(a) Make sure that the access door 824 is opened.
R (3) FOR 4RJ3, 4RJ4
(a) Make sure that the FWD cargo-compartment door is opened and safetied it with the actuator safety locks (Ref. TASK 52-30-00-860-001).
(b) Make sure that the access platform is in position below the opened FWD cargo-compartment door.
(c) Make sure that the partition 132PW at FR34 is removed
R (4) FOR 4RJ5
(a) Make sure that the access platform is in position below the access door 321AR.
(b) Open the access door 312AR.
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Subtask 23-44-42-865-052
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R **ON A/C 106-149, 401-499,
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