2 The ENG 1 BLEED and the ENG 2 BLEED pushbutton switches are in
_ the off position (the OFF legends are on).
3 The warning notice to tell persons not to operate these
_ pushbutton switches is in position.
(3)
On the HP ground connector make sure that the warning notice to tell persons not to supply ground air is in position.
(4)
Make sure that the access panel/s is/are removed (Ref. TASK 53-35-13-000-002).
(a)
FOR 10HM3
-191KB.
(b)
FOR 11HM3
-192KB.
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(5) Make sure that the water extractor/s is/are removed (Ref. TASK 21-52-16-000-001) .
(a) FOR 10HM3 - 10HM8.
(b) FOR 11HM3 - 11HM8.
(6) Make sure that the pipe assembly/ies is/are removed (Ref. TASK 21-52-23-000-003) .
Subtask 21-52-31-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 10HM3
R **ON A/C 401-499,
49VU AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC 52HH D08
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 1HH 3HH X22X21
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
R 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC 4HH Y19
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
R **ON A/C 106-149, 303-399,
R 122VU 4HH Y19
R **ON A/C 401-499,
R R 122VU AIR COND/TEMP CTL SYS 1/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 1/CHAN B/115VAC 49HH 51HH 50HH X22 X21Y18
**ON A/C ALL
FOR 11HM3
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 21HH 23HH 24HH 22HH W22W21Y21Y20
R **ON A/C 401-499,
R R 122VU AIR COND/TEMP CTL SYS 2/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 2/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC 53HH 55HH 56HH 54HH W22W21 Y21Y20
**ON A/C ALL
4. Procedure
_________ Subtask 21-52-31-560-050
A. Preparation of the Replacement Component
(Ref. Fig. 401/TASK 21-52-31-991-001)
(1)
Remove and discard the lockwire from the temperature sensor (33).
(2)
Remove the temperature sensor (33) and remove and discard the packing (32).
(3)
Put blanking plugs on the disconnected line ends.
(4)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(5)
Remove the blanking plugs from the disconnected line ends.
(6)
Clean the component interface and/or the adjacent area.
(7)
Apply a small quantity of COMMON GREASE (Material No. 04-012) to the contact faces of the temperature sensor (33) and the new packing (32)
(8)
Put the packing (32) in position on the temperature sensor (33).
(9)
Install the temperature sensor (33) and torque to between 0.5 and 1.0 m.daN (44.24 and 88.49 lbf.in).
(10) Wipe clean the excess COMMON GREASE (Material No. 04-012) from the temperature sensor (33) and safety with MISCELLANEOUS (Material No. 19-018) corrosion-resistant steel lockwire, diameter 0.6 mm (0.0236 in.)
Subtask 21-52-31-420-052
B. Installation of the Attachment Components
(Ref. Fig. 402/TASK 21-52-31-991-002)
(1)
Put the support rods (1) and (2) in their applicable positions in the brackets (20).
(2)
Install the bushings (6), the bolts (7), the washers (5) and the nuts (4).
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