5. Close-up
________ Subtask 49-11-00-410-051
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)
Close the APU exhaust access fairing 317.
(5)
Remove the access platform(s). Subtask 49-11-00-865-051
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1WG, 2WG, 1WF, 2WF.
Subtask 49-11-00-860-058
C. Aircraft Maintenance Configuration
(1)
Pressurize the reservoirs of the hydraulic systems.
(Ref. TASK 29-14-00-614-002).
(2)
Put a warning notice in the cockpit to tell persons that the APU is not installed.
NOTE : The circuit breakers 1KD, 2KD, 1QC, 2QC, 3QC, 1QF and 2QF must
____ be opened and tagged and must remain so until the APU is reinstalled.
(3)
Make an entry in the aircraft technical log book.
(4)
De-energize the ground service network
(Ref. TASK 24-42-00-862-001).
TASK 49-11-00-000-001
Removal of the APU Substitution Kit (GTCP 36-300)
1. Reason for the Job
__________________
Self Explanatory
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 protective cover
No specific thread protector
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 49-11-11-400-001 Installation of the Auxiliary Power Unit (APU) -
4005KM (GTCP 36-300) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-11-00-991-001 Fig. 801 49-11-00-991-002 Fig. 802
3. Job Set-up
__________ Subtask 49-11-00-860-054
A. Aircraft Maintenance Configuration
(1)
Energize the ground service network
(Ref. TASK 24-42-00-861-001).
(2)
On the panel 25VU make sure that the APU MASTER SW p/bsw is OFF.
(3)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-11-00-865-052
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/FIRE AND OVHT/DET/LOOP B 2WG L44 121VU APU/FIRE AND OVHT/DET/LOOP A 1WG L43 121VU APU/FIRE/EXTIG/SQUIB/B 2WF L39 121VU APU/FIRE/EXTIG/SQUIB/A 1WF L38
Subtask 49-11-00-010-052
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)
Open the APU exhaust access fairing 317.
(4)
Set the LIGHT switch to the ON position.
4. Procedure
_________
(Ref. Fig. 801/TASK 49-11-00-991-001, 802/TASK 49-11-00-991-002) Subtask 49-11-00-020-050
A. Removal of the APU Subtitution Kit
(1)
Remove the oil-cooler outlet-duct plug (31) on the door 315AL.
(2)
Remove the bleed-air duct plug (35) from the bleed air duct (24).
(3)
Install the protective cover to the bleed air duct (24).
(4)
Remove the blanking plug (27) from the exhaust muffler drain (30).
(5)
Remove the exhaust muffler plug (32) from the APU exhaust outlet (33).
(6)
Support the rear suspension assembly (18) and remove the nut (17) the washer (16) and the bolt (14).
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