(0.00 to 9.00 lbf.ft)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access AIPC 49814101020 AIPC 49814101030 AIPC 49814101040 49-81-00-991-005 Fig. 602
3. Job Set-up
__________ Subtask 49-81-00-860-053
A. Aircraft Maintenance Configuration.
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Put a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that the hydraulic systems are depressurized (Ref. TASK 29-00-00-864-001).
Subtask 49-81-00-865-058
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-81-00-010-054
C. Get Access
(1)
Put the access platform in position below the APU access doors 315AL and 316AR.
(2)
Open the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).
(3)
Select the LIGHT control switch 11LJ to the on position.
4. Procedure
_________ (Ref. Fig. 602/TASK 49-81-00-991-005) Subtask 49-81-00-210-056
A. Inspection
(1)
Examine the two bellows band clamps for security of attachment and damage. Loose clamps must be repositioned and tightened, damaged clamps must be replaced (Ref. AIPC 49814101020) and /or (Ref. AIPC 49814101030).
(2)
Examine the exhaust coupling bellows assembly for distortion, cracks and holes, burning and delamination. Replace the bellows assembly if found defective (Ref. AIPC 49814101040).
NOTE : If the band clamps require to be replaced or repositioned and
____ tightened, torque both clamp lockbolts to between 0.2 and 0.22 m.daN (17.69 and 19.46 lbf.in).
5. Close-up
________ Subtask 49-81-00-410-054
A. Close Access
(1)
Set the LIGHT control switch 11LJ to the off position.
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
(3)
Close the APU access doors 315AL , 316AR (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s).
(5)
Remove the warning notice(s). Subtask 49-81-00-865-059
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
APU Exhaust Coupling - External
Figure 602/TASK 49-81-00-991-005
CES Subtask 49-81-00-860-050
C. Aircraft Maintenance Configuration.
(1) De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
TASK 49-81-00-200-016
Visual Check of APU-Compartment Exhaust-Muffler Insulation and Bellows (APS 3200)
1. Reason for the Job
__________________
Refer to the MPD TASK: 498000-A4
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific access platform 3.5 m (11 ft. 6 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
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