Installation of the Spinner Front Cone [CFMI]

TASK 72-21-00-400-001-A
Installation of the Spinner Front Cone

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	1	ACCESS PLATFORM 1M(3 FT)
No specific	AR	GUN - HOT AIR
No specific	1	MAT - PROTECTIVE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
856A3409	1	PIN,GUIDE-SPINNER REAR CONE

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2442)	engine oil

C. Referenced Information

REFERENCE	DESIGNATION
Removal/Installation of the Spinner Front and Rear Cones

3. Job Set-up
Subtask 72-21-00-860-050-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.
(4) Make sure that MAT - PROTECTIVE is in position.

4. Procedure
Subtask 72-21-00-480-054-A ** ON A/C NOT FOR ALL

A. Install the guide pins as follows:
(1) Apply a thin layer of engine oil (Material No.CP2442) to the 3 856A3409 PIN,GUIDE-SPINNER REAR CONE (856A3409G01).
(2) Install the three guide pins equally-spaced on the front flange of the spinner rear cone (20). Install one of the pins in the offset hole of the flange.

Subtask 72-21-00-420-050-A ** ON A/C NOT FOR ALL

B. Prepare and Install the Spinner Cone.

WARNING: USE THERMAL GLOVES WHEN YOU MOVE OR TOUCH HOT OR COLD PARTS. HOT OR COLD PARTS CAN CAUSE INJURY.

(1) Increase the temperature of the front flange of the spinner rear cone to approximately 80 deg.C (176 deg.F) with a GUN - HOT AIR.
(2) Install the spinner front cone.

CAUTION: DURING INSTALLATION, MAKE SURE THERE IS A WASHER, BONDED OR NOT, UNDER EACH BOLT HEAD.

(a) Install the spinner front cone (60) on the spinner rear cone (20). Carefully align the offset holes.

Subtask 72-21-00-080-051-A ** ON A/C NOT FOR ALL

C. Remove the guide pins.

Subtask 72-21-00-420-063-A ** ON A/C NOT FOR ALL

D. Attach the Spinner Front Cone.

Removal/Installation of the Spinner Front and Rear Cones ** ON A/C NOT FOR ALL

(1) Apply a thin layer of engine oil (Material No.CP2442) to the threads of the 6 bolts (40).

PRE CFM SB 72-0516

(2) Attach the spinner front cone (60) to the spinner rear cone (20) with the bolts (40).

END OF PRE CFM SB 72-0516

POST CFM SB 72-0516

(3) Alternative Procedure Available. Attach the spinner front cone P/N 305-484-602-0 (60) to the spinner rear cone (20) with the bolts (40) and the washers (35).
(4) Alternative Procedure. Attach the spinner front cone P/N 301-465-216-0 (60) to the spinner rear cone (20) with the bolts (40).

END OF POST CFM SB 72-0516

(5) Tighten the bolts (40) by hand, and let the mating parts return to the ambient temperature.
(6) TORQUE the bolts (40) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )

5. Close-up
Subtask 72-21-00-869-050-A ** ON A/C NOT FOR ALL

A. Make sure that the work area is clean and clear of tools and other items.

Subtask 72-21-00-942-050-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Remove the WARNING NOTICE(S).
(2) Remove the MAT - PROTECTIVE from the inlet cowl.
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:33:38 UTC