Subtask 49-20-00-420-056
C. Connection of the Bleed air Duct (8049KM)
(1)
Remove the blanking plug from the bleed air duct (8049KM) (3).
(2)
Make sure that the bleed air duct (8049KM) (3) is clean and dry.
(3)
Connect the bleed air duct (8049KM) (3) to the load control valve (8050KM) (1) with the clamp (2).
CAUTION : DO NOT TORQUE THE V-CLAMP(S) TO MORE THAN THE SPECIFIED
_______ VALUE. YOU CAN DAMAGE THE FLANGE SURFACES IF YOU DO.
(4)
TORQUE the clamp (2) to 0.56 m.daN (49.55 lbf.in).
(5)
Remove the blanking caps and connect the electrical connector P12 to the Load Control Valve.
5. Close-up
________ Subtask 49-20-00-410-054
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Set the light control switch 11LJ to the OFF position.
(3)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s). Subtask 49-20-00-865-053
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-20-00-860-070
C. Aircraft Maintenance Configuration
(1)
Pressurize the reservoirs of the hydraulic systems.
(Ref. TASK 29-14-00-614-002).
(2)
De-energize the ground service network
(Ref. TASK 24-41-00-862-002).
(3)
Remove the warning notice(s).
ENGINE ((131-9(A))) - CLEANING/PAINTING
_______________________________________ TASK 49-20-00-100-004 APU Compressor Cleaning (131-9 (A)) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
1. Reason for the Job
__________________ High EGT as a result of compressor contamination. NOTE : This procedure will not correct all APU problems. You must do the
____ correct trouble-shooting procedures before the compressor is cleaned.
Complete these tasks after contamination of the engine with:
-fuel
-corrosive materials.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps No specific blanking plug No specific circuit breaker(s) safety clip(s) No specific compressor cleaning device No specific handpump No specific access platform 3.5 m (11 ft. 6 in.) No specific Torque Wrench : range 0.00 to 1.20 m.daN
(0.00
to 9.00 lbf.ft) 98A49007625001 1 DEVICE - CLEANING, APU
B.
Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 11-013 USA MIL-PRF-85704 COMPRESSOR CLEANING (Ref. 20-31-00)
R EFF : 001-049, 101-105, 107-107, 151-199, 49-20-00Page 701 201-210, Config-2 Aug 01/05
CES C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
23-44-00-860-001 Operation of the Service Interphone System 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-42-00-861-001 Energize the Ground Service Network from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 31-36-00-740-010 Printout of Stored Reports 49-00-00-860-008 APU Start by External Power (131-9(A)) 49-00-00-860-009 APU Shutdown by External Power (131-9(A)) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-20-00-991-012 Fig. 701 49-20-00-991-013 Fig. 702
3. Job Set-up
__________
Subtask 49-20-00-860-071
A. Aircraft Maintenance Configuration
(1)
Energize the ground service network
(Ref. TASK 24-42-00-861-001).
(2)
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