Installation of the Starter Motor (131-9(A))

TASK 49-42-51-400-006-A
Installation of the Starter Motor (131-9(A))

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

WARNING: BEFORE YOU START WORK, YOU MUST PUT ON A SAFETY HARNESS AND ATTACH IT TO THE ACCESS PLATFORM. WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.

ZONE: 315
ZONE: 316
FIN: 8KA ** ON A/C NOT FOR ALL

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

REFERENCE	QTY	DESIGNATION
No specific	AR	COVER - BLANKING
No specific	Torque wrench: range to between 7.14 and 6.46 m.N (63.19 and 57.17 lbf.in )
No specific	Torque wrench: range to between 12 and 11 m.N (106.19 and 97.35 lbf.in )
No specific	Torque wrench: range to between 14 and 13 m.N (123.89 and 115.04 lbf.in )
No specific	Torque wrench: range to between 0.70 and 0.66 m.daN (61.95 and 58.41 lbf.in )
No specific	Torque wrench: range to between 1.2 and 1.1 m.daN (106.19 and 97.35 lbf.in )
No specific	Torque wrench: range to between 1.4 and 1.3 m.daN (123.89 and 115.04 lbf.in )
98L12003001000	AR	HARNESS,SAFETY

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. -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
315	TAIL CONE APU AND ACCESSORY COMPARTMENT
316	TAIL CONE APU AND ACCESSORY COMPARTMENT
315AL, 316AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
21	PACKING	AIPC 49-42-09-01-030
9	PACKING	AIPC 49-42-09-01-030
21	PACKING	AIPC 49-42-84-30-020
9	PACKING	AIPC 49-42-84-30-020

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 49-42-52-000-003-A	Removal of the Starter Motor Clutch (131-9(A))
TASK 49-42-52-400-003-A	Installation of Starter Motor Clutch (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
Starter Motor (8KA)

3. Job Set-up
Subtask 49-42-51-860-088-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(2) On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is OFF.
(3) Make sure that there is a WARNING NOTICE(S) in the cockpit to tell persons not to start the APU.
(4) Make sure that the hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001).

Subtask 49-42-51-865-087-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 49-42-51-010-076-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put on and attach the HARNESS, SAFETY before you start work in the work area.
(2) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the APU compartment.
(3) Make sure that the APU access doors 316AR and 315AL are open (Ref. AMM TASK 52-41-00-010-001).
(4) Make sure that the light switch 11LJ is in the ON position.

4. Procedure
Subtask 49-42-51-420-060-A ** ON A/C NOT FOR ALL

A. Installation of the Starter Motor
(1) Installation of the starter motor with nuts and washers:
(a) Clean the component interfaces and the adjacent area.
(b) Lubricate the starter-motor drive shaft-splines and the clutch assembly internal-splines with Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) or Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) .
(c) 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 the new AIPC 49-42-09-01-030 PACKING (21) or AIPC 49-42-84-30-020 PACKING (21).
(d) Install the packing (21) on the starter motor (19).
(e) Remove the COVER - BLANKING from the gearbox starter-motor mount-flange.
(f) Install the starter motor (19) in the gearbox.
(g) Make sure that the location pin (20) engages correctly.
(h) Push the starter motor (19) to fully engage it in the accessory drive gearbox.
(i) Attach the starter motor (19) to the gearbox with the V-clamp (12).
(j) TORQUE the V-clamp (12) to between 0.70 and 0.66 m.daN (61.95 and 58.41 lbf.in )

.
(k) Connection of the electrical leads:

CAUTION: REFER TO THE MATCH MARKS MADE DURING THE REMOVAL WHEN YOU CONNECT THE ELECTRICAL WIRES. INCORRECT CONNECTION OF THE WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

CAUTION: WHEN YOU INSTALL THE STARTER MOTOR AND BEFORE YOU INSTALL THE WASHERS AND THE NUTS, OR THE FLANGE NUTS, MAKE SURE THAT:

THE POSITIVE AND NEGATIVE ELECTRICAL LEADS ARE IN DIRECT CONTACT WITH THE STARTER MOTOR COPPER STRIP, AND
THE MONITORING CABLE IS IN DIRECT CONTACT WITH THE POSITIVE ELECTRICAL LEAD.

AN INCORRECT INSTALLATION OF THE POSITIVE/NEGATIVE ELECTRICAL LEADS OR MONITORING CABLE WILL CAUSE DAMAGE TO THE STARTER MOTOR.

1 Make sure that the terminal studs of the starter motor (19), lugs of electrical leads (16), (17) and (22), nuts (14) and (24) and washers (15) and (23) are in the correct condition. If not, replace them.
2 If there is too much tension in the positive electrical lead, carefully pull the positive electrical lead from FR80 until you can attach the cable correctly.
3 Put the positive electrical-lead terminal-lug (17) and the monitoring lead (16) in position on the positive terminal stud.
4 Make sure that the positive electrical-lead terminal-lug (17) fully touches the starter motor copper-strip before you install the washer (15) and the nut (14).
5 Install the washer (15) and the nut (14). Do not torque the nut (14) at this time.
6 Put the negative electrical-lead terminal-lug (22) in position on the negative terminal stud.
7 Install the washer (23) and the nut (24). Do not torque the nut (24) at this time.
8 TORQUE the nut (14) to between 1.4 and 1.3 m.daN (123.89 and 115.04 lbf.in )

.
9 TORQUE the nut (24) to between 1.2 and 1.1 m.daN (106.19 and 97.35 lbf.in )

.
(l) Put the rubber cover (13) in position on the terminals.
(2) Installation of the starter motor with flange nuts:
(a) Clean the component interfaces and the adjacent area.
(b) Lubricate the starter-motor drive-shaft splines and the clutch assembly internal-splines with Synthetic base Lubricating Oil-Turbine Engine - - (Material No.03ABA1) or Synthetic base Lubricating Oil-Turbine Engine Low Temp. - (Material No.03ABB1) .
(c) 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 the new AIPC 49-42-09-01-030 PACKING (9) or AIPC 49-42-84-30-020 PACKING (9).
(d) Install the packing (9) on the starter motor (7).
(e) Remove the COVER - BLANKING from the gearbox starter-motor mount-flange.
(f) Install the starter motor (7) in the gearbox.
(g) Make sure that the location pin (8) engages correctly.
(h) Push the starter motor (7) to fully engage it in the accessory drive gearbox.
(i) Attach the starter motor (7) to the gearbox with the V-clamp (1).
(j) TORQUE the V-clamp (1) to between 7.14 and 6.46 m.N (63.19 and 57.17 lbf.in )

.
(k) Connection of the electrical leads:

CAUTION: REFER TO THE MATCH MARKS MADE DURING THE REMOVAL WHEN YOU CONNECT THE ELECTRICAL WIRES. INCORRECT CONNECTION OF THE WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

CAUTION: WHEN YOU INSTALL THE STARTER MOTOR AND BEFORE YOU INSTALL THE WASHERS AND THE NUTS, OR THE FLANGE NUTS, MAKE SURE THAT:

THE POSITIVE AND NEGATIVE ELECTRICAL LEADS ARE IN DIRECT CONTACT WITH THE STARTER MOTOR COPPER STRIP, AND
THE MONITORING CABLE IS IN DIRECT CONTACT WITH THE POSITIVE ELECTRICAL LEAD.

AN INCORRECT INSTALLATION OF THE POSITIVE/NEGATIVE ELECTRICAL LEADS OR MONITORING CABLE WILL CAUSE DAMAGE TO THE STARTER MOTOR.

1 Make sure that the terminal studs of the starter motor (7), lugs of electrical leads (4), (5) and (10) and flange nuts (3) and (11) are in the correct condition. If not, replace them.
2 If there is too much tension in the positive electrical lead, carefully pull the positive electrical lead from FR80 until you can attach it correctly.
3 Put the positive electrical-lead terminal-lug (5) and the monitoring lead (4) in position on the positive terminal stud.
4 Make sure that the positive electrical-lead terminal-lug (5) fully touches the starter motor copper-strip before you install the flange nut (3).
5 Install the flange nut (3) but do not torque it at this time.
6 Put the negative electrical-lead terminal-lug (10) in position on the negative terminal stud.
7 Install the flange nut (11) but do not torque it at this time.
8 TORQUE the flange nut (3) to between 14 and 13 m.N (123.89 and 115.04 lbf.in )

.
9 TORQUE the flange nut (11) to between 12 and 11 m.N (106.19 and 97.35 lbf.in )

.
(l) Put the rubber cover (2) in position on the terminals.

Subtask 49-42-51-720-057-A ** ON A/C NOT FOR ALL

B. Do a functional check of the starter motor clutch
(1) Remove the starter motor drive shaft end cover (6) or (18).
(2) Slowly rotate the starter drive shaft in a counterclockwise direction with a socket spanner, until the clutch engages.
(3) Slowly rotate the starter drive shaft in a clockwise direction until the clutch disengages.
(4) Install the starter motor drive shaft end cover.

NOTE: Replace the starter motor clutch if the starter motor does not disengage (Ref. AMM TASK 49-42-52-000-003) (Ref. AMM TASK 49-42-52-400-003).

5. Close-up
Subtask 49-42-51-410-069-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 switch 11LJ to the OFF position.
(3) Close the APU access doors 316AR and 315AL (Ref. AMM TASK 52-41-00-410-001).
(4) Remove the access platform(s).

Subtask 49-42-51-865-092-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 49-42-51-860-089-A ** ON A/C NOT FOR ALL

C. 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).

[Rev.10 from 2021] 2026.04.01 12:41:58 UTC