A. De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
Subtask 24-41-55-410-050
B. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the warning notice(s).
(3)
Install the access panel (8) on the panel 120VU.
(4)
Install the third occupant seat (Ref. TASK 25-11-41-400-001).
(5)
Close the access door 121AL.
(6)
Remove the access platform(s).
AC GROUND SERVICE BUS CONTROL - DESCRIPTION AND OPERATION
_________________________________________________________
1. General
_______
**ON A/C 001-049, 051-099, 101-105, 151-158, 201-209,
(Ref. Fig. 001)
**ON A/C 106-149, 159-199, 210-299, 301-399,
(Ref. Fig. 001A) R **ON A/C 401-499,
R (Ref. Fig. 001B) **ON A/C ALL
AC ground/flight distribution network can be supplied:
-either normally from the aircraft network,
- or directly by the ground power unit upstream of the external power
contactor, in ground service configuration. In ground service configuration this network can be supplied without energizing the whole aircraft network.
2. Component Location
__________________
**ON A/C 001-049, 051-062, 101-105, 151-152, 201-205,
(Ref. Fig. 002)
**ON A/C 063-099, 153-158, 206-209,
(Ref. Fig. 002A) R **ON A/C 106-149, 159-199, 210-299, 301-399, 401-499,
(Ref. Fig. 002B) **ON A/C 001-049, 051-099, 101-105, 151-158, 201-209,
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF.
-------------------------------------------------------------------------------12XX CNTOR-AC GND SVCE SPLY 120VU 212 831 24-42-55 14XX CNTOR-AC & DC GND SVCE SPLY 120VU 212 831 24-42-55
R **ON A/C 106-149, 159-199, 210-299, 301-399, 401-499,
12XX CNTOR-AC GND SVCE SPLY 120VU 212 831 24-42-55 14XX CNTOR-AC & DC GND SVCE SPLY 120VU 212 831 24-42-55 16XX CNTOR-SVCE BUS 2 120VU 212 831 24-42-00 18XX RECTIFIER-SVCE BUS 2 SPLY CNTOR 120VU 212 831 24-42-00
**ON A/C ALL
-------------------------------------------------------------------------------FIN I FUNCTIONAL DESIGNATION I PANELIZONEIACCESS I ATA I I I I DOOR I REF. -------------------------------------------------------------------------------5XX SW-MAINT BUS 2000VU 220 841
3. System Description
__________________
The AC ground/flight network comprises the sub-busbars:
-212XP,
-214XP,
-216XP-C.
4. Operation/Control and Indicating
________________________________
**ON A/C 001-049, 051-099, 101-105, 151-158, 201-209,
(Ref. Fig. 003)
**ON A/C 106-149, 229-299, 303-399,
(Ref. Fig. 003A)
AC Ground Service Network - Block Diagram
Figure 001
R 1EFF : 001-049, 051-099, 101-105, 151-158, 1 24-42-00Page 3/4 1201-209, 1May 01/05 1 1 1CES
AC Ground Service Network - Block Diagram
Figure 001A
R 1EFF : 106-149, 159-199, 210-299, 301-399, 1 24-42-00Page 5/6 1 1 May 01/05 1 1 1CES
1R AC Ground Service Network - Block Diagram R Figure 001B
R 1EFF : 401-499, 1 24-42-00Page 7/8 1 1 Aug 01/05 1 1 1CES
AC Ground Service Bus - Component Location
Figure 002
R 1EFF : 001-049, 051-062, 101-105, 151-152, 1 24-42-00Page 9 1201-205, 1Aug 01/05 1 1 1CES 1
AC Ground Service Bus - Component Location
Figure 002A
R 1EFF : 063-099, 153-158, 206-209, 1 24-42-00Page 10 1 1 Aug 01/05 1 1 1CES 1
AC Ground Service Bus - Component Location
Figure 002B
R 1EFF : 106-149, 159-199, 210-299, 301-399, 1 24-42-00Page 11 1401-499, 1Aug 01/05 1 1 1CES 1
AC Ground Service Bus Control - Schematic Diagram
Figure 003
R 1EFF : 001-049, 051-099, 101-105, 151-158, 1 24-42-00Page 12 1201-209, 1Aug 01/05 1 1 1CES 1
AC Ground Service Bus Control - Schematic Diagram
Figure 003A
R 1EFF : 106-149, 229-299, 303-399, 1 24-42-00Page 13 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 159-199, 210-228, 301-302,
(Ref. Fig. 003B)
R **ON A/C 401-499,
R (Ref. Fig. 003C)
**ON A/C 001-049, 051-099, 101-105, 151-158, 201-209,
Supply selection for ground service network is controlled from panel 2000VU,
MAINT BUS switch:
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