Installation of the CJ11R Harness for SAC Engines [CFMB]

TASK 73-21-50-400-026-A
Installation of the CJ11R Harness for SAC Engines

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

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.

ZONE: 400
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
This task is applicable to SAC Engines.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	PLIERS - CONNECTOR, JAW, SOFT
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.60 and 0.55 m.daN (53.10 and 48.67 lbf.in )
No specific	Torque wrench: range to between 1.25 and 1.10 m.daN (110.62 and 97.35 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2101)	graphite grease

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 72-23-00-400-027-A	Installation of the Fan Duct Panels
TASK 73-29-00-710-040-B	Operational Test of the FADEC on the Ground (with Engine Motoring)
TASK 73-29-00-710-040-B-02	Operational Test of the FADEC on the Ground (with Engine Non motoring)
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-B	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-B	Closing of the Thrust Reverser Doors
CJ11R Harness

3. Job Set-up
Subtask 73-21-50-860-060-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).

Subtask 73-21-50-010-110-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the right thrust reverser door is open (Ref. AMM TASK 78-36-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 73-21-50-040-078-A ** ON A/C NOT FOR ALL

C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).

4. Procedure
Subtask 73-21-50-420-064-A ** ON A/C NOT FOR ALL

A. Installation of the CJ11R Harness

CAUTION: CAREFULLY ALIGN THE CONNECTOR KEY WITH THE RECEPTACLE KEYWAY BEFORE YOU CONNECT THEM TO PREVENT DAMAGE TO THE CONNECTORS.

CAUTION: DISTRIBUTE THE SLACK ALL ALONG THE CABLE. DO NOT LET THE CABLE SHEATH TOUCH THE ADJACENT COMPONENTS. DO NOT TWIST THE SHEATH BY MORE THAN 180 DEGREES.

(1) Remove the CAP-BLANKING from each electrical connector and receptacle.
(2) Make sure that all the electrical connections are clean and in the correct condition.
(3) Put the CJ11R harness in position on the core engine.
(4) Engage the CJ11R and CJ12R harnesses in the recess of the fan frame, at the 4:30 o'clock position.
(5) Connect the CJ11R harness to the T25 sensor channel A, the BSV switch channel A (PRE CFMI SB 73-0114), the HPTACC valve position sensor channel A, and the VSV position sensor channel A.
(a) Use the PLIERS - CONNECTOR, JAW, SOFT only if necessary.

NOTE: CFMI 5B SB 73-0114 deleted the BSV system.

(6) Connect the CJ12R harness to the T25 sensor channel B.
(a) Use the PLIERS - CONNECTOR, JAW, SOFT only if necessary.
(7) Make sure that the connectors are fully engaged and do not move.
(8) Lubricate the threads of the bolts with the graphite grease (Material No.CP2101) , before installation.
(9) Install the parts that attach the CJ11R harness as follows:

INSTALL	ON	NOTE
Clamp (40) Bolts (50) and (60)	6 o'clock tube bundle junction box	On the right-hand side of the 6 o'clock junction box (ALF) (Detail E)
Bolt (70)	Fan frame	At the 4:30 o'clock position (Section F-F)
Clamp (100) Bolt (90)	Bracket (110) on the fan frame	At the 4:15 o'clock position (Section D)
Bolt (20)	Bracket (30) on the fan frame	At the 3:30 o'clock position (Detail C)
Bolt (130)	Bracket (120) on the fan frame	At the 3 o'clock position (Detail B)

(10) Make sure that the CJ11R harness is not stressed.
(a) TORQUE the bolts (20), (50), (60), (90) and (130) to between 0.60 and 0.55 m.daN (53.10 and 48.67 lbf.in )

.
(11) TORQUE the bolt (70) to between 1.25 and 1.10 m.daN (110.62 and 97.35 lbf.in )

.
(12) Connect the HJ11 harness to the CJ11R harness bulkhead connector in the 6 o'clock junction box.
(a) Use the PLIERS - CONNECTOR, JAW, SOFT only if necessary.
(13) Install the fan duct panel between struts No. 5 and No. 6 (Ref. AMM TASK 72-23-00-400-027).

Subtask 73-21-50-710-064-A ** ON A/C NOT FOR ALL

B. Do a FADEC ground test with engine motoring (Ref. AMM TASK 73-29-00-710-040).

5. Close-up
Subtask 73-21-50-410-083-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) Close the right thrust reverser door (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
452AR
(b) FOR [1000EM2] (ENGINE-2)
462AR

Subtask 73-21-50-440-073-A ** ON A/C NOT FOR ALL

B. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 73-21-50-410-097-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:58:40 UTC