-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
21-52-21-991-001 Fig. 401 R **ON A/C 151-199, 401-499,
R 21-52-21-991-001-A R
**ON A/C ALL
21-52-21-991-002
3. Job Set-up
__________
Subtask 21-52-21-860-050
Fig. 401A
Fig. 402
A. Aircraft Maintenance Configuration
(1) Make sure that:
(a)
The aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).
(b)
The access panel is removed (Ref. TASK 53-35-13-000-002), FOR 10HM1 191KB, FOR 11HM1 192KB.
(c)
The pipe assembly is removed (Ref. TASK 21-52-23-000-001).
(d)
The bypass valve 10HH (30HH) is removed (Ref. TASK 21-61-53-000-001).
(e)
On the panel 30VU: 1 The APU BLEED pushbutton switch is in the off position (the ON
_
legend is off).
2_ The ENG 1 BLEED and the ENG 2 BLEEDpushbutton 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.
4_ On the HP ground connector the warning notice to tell persons not to supply ground air is in position.
Subtask 21-52-21-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 10HM1
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
R **ON A/C 106-149, 303-399,
R 122VU 4HH Y19
R -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**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 11HM1
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
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