(3)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-11-00-010-057
B. 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. Subtask 49-11-00-865-059
C.
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
4. Procedure
_________
(Ref. Fig. 801/TASK 49-11-00-991-004, 802/TASK 49-11-00-991-005) Subtask 49-11-00-020-054
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).
(7)
Continue to support the rear suspension assembly (18) and remove the nut (13) and the washer (12). Install the thread protector and remove the assembly (18).
(8)
Remove the generator cables (7) from the cross member assembly (3) and attach temporarily to the bulkhead.
(9)
Remove the starter cables (20) from the cross member assembly (3) and attach temporarily to the bulkhead.
(10)
Support the cross member assembly (3) and remove the nuts (1) the washers (2) and fit the thread protectors.
(11)
Remove the blanking plug (28) from the APU fuel feed pipe (29).
(12)
Remove the blanking caps (19) from the connector sockets 7120VC, 7138VC and 7118VC.
(13)
Remove the cross member assembly (3). Subtask 49-11-00-420-053
B.
Install the APU. (Ref. TASK 49-11-11-400-003)
5. Close-up
________ Subtask 49-11-00-410-057
A. Close Access
(1)
Set the LIGHT switch to the Off position.
(2)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(3)
Close the APU exhaust access fairing 317.
(4)
Remove the access platform(s). Subtask 49-11-00-860-051
B.
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
TASK 49-11-00-400-004
Installation of the Generator Substitution Kit (Flight without Generator) (APS 3200) WARNING : ISOLATE THE ELECTRICAL CIRCUITS FROM THE RELATED EQUIPMENT AND THE
_______ ENVIRONMENT.
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
__________________
Installation of the Generator Substitution Kit
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform 3.5 m (11 ft. 6 in.)
No specific Torque Wrench : range 1.00 to 10.00 m.daN
(8.00
to 75.00 lbf.ft) 3862619-1 1 COVER - ASSEMBLY, APU GEN
B.
Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific lockwire-corrosion resistant steel 0.8mm (0.0314 in.) dia.
Material No. 03-002 GB DEF-STAN 91-101 LUBRICATING OIL TURBINE ENGINE SYNT BASE (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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