Installation of the Generator Substitution Kit for Trouble Shooting (131-9(A))

TASK 49-11-00-400-006-A
Installation of the Generator Substitution Kit for Trouble Shooting (131-9(A))

WARNING: DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	Torque wrench: range to between 0.24 and 0.22 m.daN (21.24 and 19.47 lbf.in )
No specific	Torque wrench: range to between 4.4 and 3.9 m.daN (32.45 and 28.76 lbf.ft )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03ABA1)	Synthetic base Lubricating Oil-Turbine Engine - -
(Material No.03ABB1)	Synthetic base Lubricating Oil-Turbine Engine Low Temp. -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
315AL, 316AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	SEAL	AIPC 49-11-04-05-150

E. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 49-00-00-860-008-A	APU Start by External Power
TASK 49-00-00-860-008-A-01	APU Start by Batteries
TASK 49-00-00-860-009-A	APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01	APU Shutdown by Batteries (131-9(A))
TASK 49-90-00-600-007-A	Check Oil Level and Replenish (131-9(A))
TASK 52-41-00-010-001-A	Open the APU Doors for Access
TASK 52-41-00-410-001-A	Close the APU Doors after Access
APU Generator - Substitution Kit

3. Job Set-up
Subtask 49-11-00-860-069-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM 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 the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).

Subtask 49-11-00-865-067-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	APU/APU/CTL	2KD	L42
121VU	APU/ECB/SPLY	1KD	L41

Subtask 49-11-00-010-062-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the access platform is in position below the APU compartment.
(2) Make sure that the APU access doors 315AL and 316AR are open (Ref. AMM TASK 52-41-00-010-001).
(3) Make sure that the LIGHT SW 11LJ is set to the ON position.
(4) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the APU compartment.
(5) Do an inspection of the component interfaces and the adjacent area.

4. Procedure
Subtask 49-11-00-420-060-A ** ON A/C NOT FOR ALL

A. Installation of the Generator Substitution Kit
(1) Clean the component interfaces and the adjacent area.
(2) Remove the nuts (4) from the generator mounting flange (1).
(3) Lubricate the screws (11) with Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) or Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) .
(4) Install the seal plate (10) in the cover assembly (3) with the screws (11). Tighten the screws (11).
(5) Apply a thin layer of Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) or Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) on a new AIPC 49-11-04-05-150 SEAL (2) and install the cover assembly (3) on the mounting flange (1).
(6) Put the generator cable support (6) (Ref. AIPC 49-11-04-05-010) in position on the cover assembly (3).
(7) Attach the cover assembly (3) and the generator cable support (6) with the nuts (4).
(8) TORQUE the nuts (4) to between 4.4 and 3.9 m.daN (32.45 and 28.76 lbf.ft )

.
(9) Safety of the drain plug (5):

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(a) Make sure that the drain plug (5) is fully tightened and safetied with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(10) Remove the nuts (8) from the generator cable support (6).

NOTE: Refer to the marks on the generator cable support when you install the electrical cable connections.

(11) Connect the electrical connector (7) and the electrical cables (9) to the generator cable support (6).
(12) Secure the electrical cables (9) with the nuts (8).
(13) Attach the electrical cables (9) with the clamp (14).
(14) Install the spacer (15), clamp (14), washer (13), screw (12), washer (16) and nut (17) in the generator cable support (6).
(15) TORQUE the nut (17) to between 0.24 and 0.22 m.daN (21.24 and 19.47 lbf.in )

Subtask 49-11-00-865-068-A ** ON A/C NOT FOR ALL

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	APU/APU/CTL	2KD	L42
121VU	APU/ECB/SPLY	1KD	L41

Subtask 49-11-00-210-055-A ** ON A/C NOT FOR ALL

CAUTION: USE ONLY APPROVED TYPES/BRANDS OF LUBRICANTS. DO NOT MIX TYPES OF LUBRICANTS (TYPE 1 3-CTS OIL WITH TYPE 2 5-CTS OIL). DO NOT MIX OILS OF DIFFERENT BRANDS MORE THAN NECESSARY.

CAUTION: MAKE SURE THAT THE APU AIR INTAKE IS FULLY CLOSED TO MAKE SURE THAT THE SHUTDOWN OF THE APU WAS CORRECT. IF THE APU AIR INTAKE IS NOT FULLY CLOSED, OPERATE THE APU AT NO-LOAD FOR 5 MINUTES THEN DO A NORMAL SHUTDOWN.

C. Inspection Check

NOTE: Oil level inspection and servicing should be checked not less than 15 minutes after the last shutdown. Do not re-service before the APU is operated again.

(1) Do a visual check of the oil quantity on the APU oil level. Add oil if the oil level is on or less than the ADD mark on the sight glass (Ref. AMM TASK 49-90-00-600-007).

Subtask 49-11-00-710-054-A ** ON A/C NOT FOR ALL

D. Test

WARNING: MAKE SURE THAT YOU HAVE THE CORRECT FIRE FIGHTING EQUIPMENT AVAILABLE.

(1) Start and operate the APU (Ref. AMM TASK 49-00-00-860-008).
(2) Examine the joint between the mounting flange (1) and the cover assembly (3) for oil leakage.

NOTE: No leakage of oil is permitted.

(3) Stop the APU (Ref. AMM TASK 49-00-00-860-009).

5. Close-up
Subtask 49-11-00-410-063-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Set the LIGHT control SW 11LJ to the OFF position.
(3) Close the APU access doors 315AL 316AR and (Ref. AMM TASK 52-41-00-410-001).
(4) Remove the access platform(s).

Subtask 49-11-00-860-070-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Put the related hydraulic system in the pressurized configuration (Ref. AMM TASK 29-00-00-864-001).
(2) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
(3) Remove the WARNING NOTICE(S).
(4) Make an entry in the aircraft technical log book.

[Rev.10 from 2021] 2026.04.01 12:43:25 UTC