__________________
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 access platform 1.6 m (5 ft. 3 in.)
B. Referenced Information
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REFERENCE DESIGNATION
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21-26-00-710-001 Operational Check of System via MCDU 21-26-00-710-001 Operational Check of System via MCDU 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 52-41-00-410-002 Close the Avionics Compartment Doors after Access
**ON A/C 001-049, 051-099, 101-105, 151-158, 201-210,
21-26-34-991-001 Fig. 401 R **ON A/C 106-149, 159-199, 211-299, 301-399, 401-499,
21-26-34-991-001-A Fig. 401A **ON A/C ALL
3. Job Set-up
__________
CAUTION : USE ONLY THE GROUND SERVICE NETWORK TO SUPPLY ELECTRICITY BECAUSE
_______ THE AVIONICS VENTILATION SYSTEM IS NOT SERVICEABLE. IF YOU ENERGIZE THE AIRCRAFT ELECTRICAL CIRCUITS WITHOUT THE VENTILATION SYSTEM YOU WILL CAUSE DAMAGE TO ELECTRICAL EQUIPMENT.
Subtask 21-26-34-860-050
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).
Subtask 21-26-34-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR COND/AVNCS VENT/CTL 6HQ D06 49VU AIR COND/AVNCS VENT/CTL 5HQ D05 122VU AIR COND/AVNCS/VENT/MONG 3HQ Y17
Subtask 21-26-34-010-051
C. Get Access
(1)
Make sure that the access platform is in position at the access door
824.
(2)
Make sure that the access door 824 is open.
4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-105, 151-158, 201-210,
(Ref. Fig. 401/TASK 21-26-34-991-001)R **ON A/C 106-149, 159-199, 211-299, 301-399, 401-499,
(Ref. Fig. 401A/TASK 21-26-34-991-001-A)
**ON A/C ALL
Subtask 21-26-34-420-050
A. Installation of the AEVC
(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.
(4)
Make sure that the electrical connectors are clean and in the correct condition.
(5)
Install the AEVC (1) on its rack (3).
(6)
Push the AEVC (1) on its rack (3) to connect the electrical connector (2).
(7) Engage the nut (4) on the lug (5) and tighten.
Subtask 21-26-34-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 3HQ, 5HQ, 6HQ
Subtask 21-26-34-710-050
C. Do an operational test of the ventilation system of the avionics equipment (Ref. TASK 21-26-00-710-001).
NOTE : As an alternative procedure, you can do this operational test
____
without the CFDS (Ref. TASK 21-26-00-710-001).
5. Close-up
________
Subtask 21-26-34-410-050
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
R (2) Close the access door 824 (Ref. TASK 52-41-00-410-002).
(3) Remove the access platform(s).
Subtask 21-26-34-862-051
B. De-energize the ground service network
(Ref. TASK 24-42-00-862-001).
CHECK VALVE (2140HM) - REMOVAL/INSTALLATION
___________________________________________ TASK 21-26-41-000-001 Removal of the Check Valve (2140HM)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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