-removal and installation of the APU.
-
detailed visual inspection of the APU suspension rods, shockmounts structure including brackets and vissible part of attachment fittings.
-
detailed inspection of the tie-rod assemblys.
-
removal and installation of the FWD LH vibration isolator 4035KM.
-
removal and installation of the FWD RH vibration isolator 4045KM.
-
removal and installation of the AFT vibration isolator.
-
removal and installation of the APU mount brackets 4065KM, 4075KM and 4085KM.
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.)
A1-91-265 1 HOIST - MINILIFT
98D49107554000 1 SAFETY BELT - APU HOIST
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 49-52-41-000-003 Removal of the Oil-Cooler Outlet-Duct (8052KM)
(131-9(A)) 52-41-00-010-001 Open the APU Doors for Access 52-41-21-000-001 Removal of the APU Access Door 315AL 49-00-00-991-009 Fig. 202 49-00-00-991-010 Fig. 203
3. Job Set-up
__________
Subtask 49-00-00-860-056
A. Aircraft Maintenance Configuration
(1)
Energize the ground service network
(2)
On the panel 25VU, make sure that the APU MASTER SW p/bsw is OFF.
(3)
Put the warning notices on panel 25VU to tell persons not to start the APU. (Ref. TASK 24-42-00-861-001).
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-00-00-865-085
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 121VU APU/FIRE/EXTIG/SQUIB/B 2WF L39 121VU APU/FIRE/EXTIG/SQUIB/A 1WF L38 121VU APU/FIRE/LP VALVE/NORM 4WF M42 121VU APU/FIRE/LP VALVE/STBY 3WF M41
Subtask 49-00-00-010-061
C. Get Access
(1)
Put the access platform in position below the APU compartment.
(2)
Open the APU access doors 315AL and 316AR (Ref. TASK 52-41-00-010-001).
NOTE : The installation of the HOIST - MINILIFT is easier when the
____ access door 315AL is removed (Ref. TASK 52-41-21-000-001).
(3)
Set the LIGHT SW 11LJ to ON.
(4)
Remove the oil-cooler outlet duct (Ref. TASK 49-52-41-000-003).
4. Procedure
_________
WARNING : OBEY THE HOISTING SAFETY PROCEDURES.
_______ MAKE SURE THAT THE HOIST IS ASSEMBLED AND ATTACHED CORRECTLY BEFORE YOU PUT A LOAD ON IT. OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THE HOIST. IF THE HOIST IS IN AN INCORRECT CONDITION THE LOAD CAN MOVE ACCIDENTALLY AND KILL PERSONS OR CAUSE INJURY.
Subtask 49-00-00-480-051
A. Installation of the HOIST - MINILIFT (A1-91-265)
(Ref. Fig. 202/TASK 49-00-00-991-009)
NOTE : Do the subsequent steps of this paragraph if the load compressor
____
scroll installed has not the following P/N 2810315-3.
This are APU'S:
-with P/N 3800278-2 and CHANGE NO. 122 incorporated.
-
from P/N 3800278-3 SERIES NO.12.
-
from P/N 3800278-3 SERIES NO. 11 CHANGE NO. 122 incorporated.
(1)
Do a check and make sure that the components of the HOIST - MINILIFT
(10) are in the correct condition.
(2)
Assemble the components of the HOIST - MINILIFT (10) correctly. NOTE : Obey the instructions of the tool manufacturer when you do the
____ check and assemble the compenents of the HOIST - MINILIFT.
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