4. Procedure
_________
(Ref. Fig. 401/TASK 21-61-19-991-001)
Subtask 21-61-19-420-050
A. Installation of the Pack-Outlet Pneumatic Sensor
(1)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(2)
Make sure that the removed packing (5) is in a good condition. If necessary replace the packing (5).
(3)
Remove the blanking plugs from the disconnected line ends.
(4)
Clean the component interface and/or the adjacent area.
(5)
Apply a small quantity of COMMON GREASE (Material No. 04-012) to the screws (1).
(6)
Put the packing (5) in position on the pack-outlet pneumatic sensor (4).
(7)
Put the pack-outlet pneumatic sensor (4) in position in the condensor
(6) and install the washers (2) and the screws (1).
(8)
Make sure that the pack-outlet pneumatic sensor (4) is in the correct position and tighten the screws (1).
(9)
Wipe clean the excess COMMON GREASE (Material No. 04-012) from the screws (1) and safety with MISCELLANEOUS (Material No. 19-009).
(10)
Connect the sense line (3).
(11)
TORQUE the sense line (3) connector to between 0.9 and 0.915 m.daN
(79.64 and 80.97 lbf.in).
Subtask 21-61-19-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
R (1) FOR 10HM10
-1HB, 1HH, 2HH, 3HH, 4HH.
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-61-19Page 408 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1R (2) FOR 11HM10
-2HB, 21HH, 22HH, 23HH, 24HH:
Subtask 21-61-19-710-050
C. Test
(1)
Do the pre-conditioning through the HP ground connector or with the APU (Ref. TASK 12-33-21-618-001) (Ref. TASK 12-33-21-618-001).
(2)
Do a leak check of the pack-outlet pneumatic sensor sense line connection.
NOTE : Leaks are not permitted.
____
(3)
After approx. 15 minutes stop the pre-conditioning (Ref. TASK 12-33-21-618-001) (Ref. TASK 12-33-21-618-001).
(4)
Do the operational test of the pack temperature control system (Ref. TASK 21-61-00-710-001).
5. Close-up
________
Subtask 21-61-19-410-051-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 (Ref. TASK 53-35-13-400-002). R (a) FOR 10HM10 191BB. R (b) FOR 11HM10
192FB
Subtask 21-61-19-862-050
B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
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CONTROLLER - PACK (7HH,27HH) - REMOVAL/INSTALLATION
___________________________________________________ TASK 21-61-34-000-001 Removal of the Pack Controller (7HH, 27HH)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific access platform 1 m (3 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 21-61-34-991-001 Fig. 401
3. Job Set-up
__________ Subtask 21-61-34-861-050
A. Energize the ground service network
(Ref. TASK 24-42-00-861-001).
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B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 7HH
122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 1HH X22 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 3HH X21 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC 4HH Y19 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18
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