(b)
 On the ELEC page, make sure that the following APU GEN parameters are correct:

 -
AC LOAD Percent shown in green,

 -
AC V = 115 + or - 5V,

 -FRQ HZ = 400 + or - 10HZ.

 (c)
 Stop the APU (Ref. TASK 24-41-00-862-002).

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 24-22-33Page 408 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1

 5. Close-up
________ Subtask 24-22-33-862-051
 A. Put the aircraft back to its initial configuration.
 (1) De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

 Subtask 24-22-33-410-051
 B. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access door 811.

 (3)
 Remove the warning notice(s).

 (4)
 Remove the access platform(s).

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 24-22-33Page 409 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1

 CONTROL UNIT - GENERATOR (GCU) (1XU1,1XU2) - REMOVAL/INSTALLATION
_________________________________________________________________ TASK 24-22-34-000-001 Removal of the GCU-1(2) (1XU1, 1XU2) CAUTION : USE ONLY THE GROUND SERVICE NETWORK TO SUPPLY THE AIRCRAFT WITH AC
_______
 AND DC POWER.
 YOU CAN CAUSE DAMAGE TO THE EQUIPMENT DURING ITS REMOVAL/
 INSTALLATION IF THE RELATED NETWORK IS NOT ISOLATED.

 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 warning notice
 No specific access platform 1.6 m (5 ft. 3 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001  Energize the Ground Service Network from the External Power

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 24-22-34-991-001 Fig. 401 R **ON A/C 401-499,
R 24-22-34-991-001-A Fig. 401AR **ON A/C ALL

 3. Job Set-up
__________
 Subtask 24-22-34-860-050

 A. Aircraft Maintenance Configuration
 (1)
 Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 (2)
 In the cockpit, put a warning notice to tell persons not to operate the pushbutton switches (ENG MASTER 1(2)) on the pylon panel 115VU (ENG panel)

 Subtask 24-22-34-865-052
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 1XU1
 122VU ELEC/GCU/1 2XU1 T26 FOR 1XU2 122VU ELEC/GCU/2 2XU2 T27
 Subtask 24-22-34-010-052
 C. Get Access
 (1)
 Put an access platform at the access door 811 of the avionics compartment.

 (2)
 Open the access door 811.

 4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 (Ref. Fig. 401/TASK 24-22-34-991-001)

 Generator Control Unit 1(2) GCU-1(2)
 Figure 401/TASK 24-22-34-991-001

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 24-22-34Page 403 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1

R  **ON A/C 401-499, 
R R  (Ref. Fig. 401A/TASK 24-22-34-991-001-A) **ON A/C ALL
 Subtask 24-22-34-020-052
 A. Removal of the GCU
 (1) Loosen the 2 knurled nuts (1). (2) Lower the 2 knurled nuts (1) to disengage the 2 studs (2). (3) Carefully pull the handle (3) of the GCU (4) until the GCU is disconnected from the rack receptacle (5). (4) Remove the GCU from the rack (6). (5) Put blanking caps on the rack receptacle (5) and on the GCU connector.

R  Generator Control Unit 1(2) GCU-1(2) 
R  Figure 401A/TASK 24-22-34-991-001-A 
R 1EFF :  401-499,  1  24-22-34 Page 405 
1  1  Aug 01/05
 1  1
 1CES  1

 
　
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