Installation of the Actuation Ring Connecting Links [CFMB]

TASK 72-32-00-400-004-A
Installation of the Actuation Ring Connecting Links

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** 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	ACCESS PLATFORM 1M(3 FT)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )
No specific	Torque wrench: range to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2101)	graphite grease
(Material No.CP2365)	Loctite 290
(Material No.CP8001)	lockwire 0.032 in. (0.8 mm) dia.

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
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 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
Replacement of the Actuation Ring Connecting Links

3. Job Set-up
Subtask 72-32-00-860-053-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) is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

Subtask 72-32-00-010-065-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 thrust reverser doors are open: (Ref. AMM TASK 78-36-00-010-040)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 72-32-00-040-059-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 72-32-00-420-053-A ** ON A/C NOT FOR ALL

A. Install the connecting link.
(1) If the straight pin comes out with the connecting link, apply Loctite 290 (Material No.CP2365) to the end of the straight pin that goes in the actuation ring.
(2) Install the straight pin in the actuation ring.

NOTE: On the right side, the pin goes in the top segment of the actuation ring. On the left side, the pin goes in the lower segment of the actuation ring.

(3) Install the connecting link to the actuation ring segments. Make sure the straight pin fully engages the hole in the actuation ring and the lever arms are correctly engaged in the connecting link bushings.
(4) Install the headed pin in the connecting link and actuation ring segment.
(5) Apply graphite grease (Material No.CP2101) to the threads and friction surface of the bolts.
(6) Install the bolts. TORQUE the bolts to between 70 and 55 lbf.in (0.79 and 0.62 m.daN )

.
(7) Make sure that the straight pin is correctly installed in the actuation ring. Use lockwire through the inspection hole of the connecting link to feel for the pin.
(8) Do a visual check:

CAUTION: BLADE DAMAGE CAN OCCUR IF THE LEVER ARMS ARE NOT CORRECTLY ENGAGED.

(a) Make sure all of the lever arms are correctly engaged in the connecting link bushings.
(9) Wirelock the bolts:

CAUTION: MAKE SURE THE D-HEAD BOLT IS SEATED IN THE RECESS OF THE CONNECTING LINK.

(a) Use the CP8001lockwire 0.032 in. (0.8 mm) dia..
(10) Apply graphite grease (Material No.CP2101) to the threads of the D-head bolt.
(11) Install the tie rod in the connecting link with the D-head bolt and nut. The bolt head goes aft for IVG and forward for stages 1, 2, and 3.
(12) Install the nut and TORQUE to between 115 and 105 lbf.in (1.30 and 1.19 m.daN )

NOTE: Do not adjust the tie rod.

5. Close-up
Subtask 72-32-00-410-060-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 thrust reverser doors: (Ref. AMM TASK 78-36-00-410-040)
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 72-32-00-440-055-A ** ON A/C NOT FOR ALL

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

Subtask 72-32-00-410-061-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).
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 02:42:27 UTC