Installation of the Generator Control and Monitor Harness from the Pylon to the Generator [CFML]

TASK 71-51-43-400-808-A
Installation of the Generator Control and Monitor Harness from the Pylon to the Generator

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

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

FIN: 4002XU
FIN: 4003XU
FIN: 4004XU
FIN: 4005XU

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 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.43 and 0.36 m.daN (38.05 and 31.86 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CPNCL00062)	LUBRICATING OIL TURBINE ENGINE SYNT BASE

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-70-00-910-804-A	Electrical Standard Practices
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A	Closing of the Fan Cowl Doors
Generator Control and Monitor Harness from the Pylon to the Generator

3. Job Set-up
Subtask 71-51-43-941-085-A

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:

The ENG/MODE selector switch
The ENG/MASTER 1(2) control switch.

(2) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).

Subtask 71-51-43-010-105-A

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position under the right fan cowl door.

4. Procedure
Subtask 71-51-43-420-084-A

A. Installation of the Generator Control and Monitor Harness from the Pylon to the Generator
(1) Remove all COVER - PROTECTION and CAP - PROTECTION from openings, tubes, hoses and connectors.
(2) Lubricate the threads of the bolts (5), (7), (24), (29) and (30) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
(3) Put the P-clamps (8), (10), (25) and (31) on the electrical harness (2).
(a) Use the record made during the removal procedure to help get the correct location and position.
(4) Put the electrical harness (2) in position on the right side of the engine.
(a) Use the record made during the removal procedure to help get the correct routing.
(5) Connect the electrical connectors as follow (Ref. AMM TASK 70-70-00-910-804):

Connect the electrical connectors (3) and (4) to the receptacles on the pylon junction box (1).

(6) Attach the electrical harness (2) to the support brackets on the right side of the engine as follow:
(a) Loosely install the bolt (7) to attach the P-clamp (8) to the support bracket (6).
(b) Loosely install the bolt (5) to attach the P-clamp (10) to the support bracket (9).
(c) TORQUE the bolts (19) to between 0.43 and 0.36 m.daN (38.05 and 31.86 lbf.in )

.
(d) Push the electrical harness (2) into the spring clips on the support brackets (12), (13), (14), (16) and (17).
(7) Put the electrical harness (2) in position on the left side of the engine.
(a) Use the record made during the removal procedure to help get the correct routing.
(8) Connect the electrical connectors as follow (Ref. AMM TASK 70-70-00-910-804):

Connect the electrical connector (27) to the receptacles on the IDG (26).
Connect the electrical connector (28) to the receptacles on the support bracket (23). Install the two bolts (29).

(9) Attach the electrical harness (2) to the support brackets on the left side of the engine as follow:
(a) Loosely install the bolt (24) to attach the P-clamp (25) to the support bracket (23).
(b) Loosely install the bolt (30) to attach the P-clamp (31) to the support bracket (23).
(c) Push the electrical harness (2) into the spring clips on the support brackets (18), (19), (20) and (21).
(10) Adjust the tension in the electrical harness (2) along the routing.
(a) Make sure the electrical harness (2) does not touch adjacent parts.
(11) TORQUE the bolts (5), (7), (24), (29) and (30) to between 0.43 and 0.36 m.daN (38.05 and 31.86 lbf.in )

5. Close-up
Subtask 71-51-43-410-080-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:33:28 UTC