Installation of the Pneumatic Starter [CFMI]
TASK 80-11-10-400-001-A
Installation of the Pneumatic Starter
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 80-11-10-860-050-A ** ON A/C NOT FOR ALL
Subtask 80-11-10-420-050-A ** ON A/C NOT FOR ALL
Subtask 80-11-10-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 04:34:17 UTC
Installation of the Pneumatic Starter
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2101) | graphite grease |
| (Material No.CP2442) | engine oil |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 30 | PREFORMED PACKING | AIPC 80-11-10-01-040 |
| 50 | O-RING | AIPC 80-11-10-01-060 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-13-80-610-002-A | Replenish Oil System |
| TASK 71-00-00-710-006-A | Minimum Idle Check |
| TASK 71-13-00-010-040-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-040-A | Closing of the Fan Cowl Doors |
Subtask 80-11-10-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(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).
(3) On the AIR COND panel 30VU:
(a) Make sure that the APU BLEED pushbutton switch is released (ON legend is off).
(b) Make sure that a WARNING NOTICE(S) is in position to tell persons not to operate the pneumatic system.
(4) On the HP ground connector:
(a) Make sure that a WARNING NOTICE(S) is in position to tell persons not to pressurize the pneumatic system.
Subtask 80-11-10-010-052-A ** ON A/C NOT FOR ALL WARNING:
IF IT IS NECESSARY TO ENERGIZE THE AIRCRAFT FOR A MAINTENANCE WORK WHILE YOU DO THIS MAINTENANCE PROCEDURE, MAKE SURE THAT ONLY EXTERNAL POWER IS USED. THE USE OF APU OR ENGINE POWER CAN CAUSE PRESSURIZED AIR LEAKAGE IN THE PNEUMATIC SYSTEM, AND INJURY CAN OCCUR.
(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).
(3) On the AIR COND panel 30VU:
(a) Make sure that the APU BLEED pushbutton switch is released (ON legend is off).
(b) Make sure that a WARNING NOTICE(S) is in position to tell persons not to operate the pneumatic system.
(4) On the HP ground connector:
(a) Make sure that a WARNING NOTICE(S) is in position to tell persons not to pressurize the pneumatic system.
B. Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 80-11-10-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Pneumatic Starter
(2) Lubricate the new AIPC 80-11-10-01-060 O-RING (50) with engine oil (Material No.CP2442) and install in the starter output drive-shaft groove.
PRE SB CFM56-5 72-454
(3) Lubricate the re-usable, or new seal (40) with engine oil (Material No.CP2442) and install it in the starter drive pad of the accessory gearbox.
(4) Lubricate the output shaft splines of starter with engine oil (Material No.CP2442) .
PRE SB CFM56-5 72-454
(5) Install the seal ring assembly (40) as follows:
(a) If necessary, install a new AIPC 80-11-10-01-040 PREFORMED PACKING (30) on the support (20).
(b) Lubricate the seal ring assembly (40) with engine oil (Material No.CP2442) .
(c) Install the seal ring assembly (40) in the starter drive pad of the accessory gearbox.
END OF SB CFM56-5 72-454
(6) Align locating dowel on the starter (60) with locating hole on AGB housing. Engage the starter carefully in the drive pad to prevent damage to the O-ring (50). If necessary, turn the starter output drive-shaft by hand to align mating splines.
(7) Install the V-clamp.
.
(b) Install the V-clamp (70) which attaches the air supply duct (80) to starter (60). Apply a thin layer of graphite grease (Material No.CP2101) to the nut threads. Install the nut and TORQUE to between 80 and 70 lbf.in (0.90 and 0.79 m.daN )
.
(8) Fill the starter with engine oil (Material No.CP2442) (Ref. AMM TASK 12-13-80-610-002).
Subtask 80-11-10-710-051-A ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL WHEN YOU MOVE THE ENGINE STARTER. BECAUSE THE STARTER WEIGHS APPROXIMATELY 38 POUNDS (17 KG), INJURY CAN OCCUR.
CAUTION:
DURING INSTALLATION, KEEP THE STARTER PERPENDICULAR TO THE AGB MOUNTING PAD TO PREVENT SEIZE AND/OR DAMAGE TO THE OUTPUT DRIVE SHAFT.
CAUTION:
DO NOT INSTALL THE STARTER ON THE AGB WITHOUT ITS SEALING ITEMS (NEW O-RING AND THE RE-USED OR NEW SEAL RING). IF THE STARTER IS INSTALLED WITHOUT THESE SEALS, THE ENGINE CAN LEAK OIL. THIS CAN CAUSE ENGINE FAILURE.
CAUTION:
DURING INSTALLATION, ADJUST THE ORIENTATION OF THE LOWER DUCT. MAKE SURE THAT THE PS3 LINE DOES NOT TOUCH THE LOWER DUCT OR OTHER PARTS IN THIS AREA. IF IT DOES, CHAFING OF THE PS3 HOSE CAN OCCUR.
CAUTION:
DURING STARTER REMOVAL/INSTALLATION, BE CAREFUL NOT TO CAUSE DAMAGE TO THE STARTER FUSE PIN WHEN YOU TURN/TWIST THE STARTER ASSEMBLY IN OPPOSITE CLOCKWISE/COUNTERCLOCKWISE DIRECTIONS FROM THE MOUNTING PAD. CFM RECOMMENDS THAT YOU USE THE CORRECT LEVERAGE PROCEDURES AND CORRECT TOOLS TO REMOVE/INSTALL THE STARTER ASSEMBLY FROM/ON THE AGB.
(1) Remove the protective plugs. (2) Lubricate the new AIPC 80-11-10-01-060 O-RING (50) with engine oil (Material No.CP2442) and install in the starter output drive-shaft groove.
PRE SB CFM56-5 72-454
(3) Lubricate the re-usable, or new seal (40) with engine oil (Material No.CP2442) and install it in the starter drive pad of the accessory gearbox.
(4) Lubricate the output shaft splines of starter with engine oil (Material No.CP2442) .
PRE SB CFM56-5 72-454
(5) Install the seal ring assembly (40) as follows:
(a) If necessary, install a new AIPC 80-11-10-01-040 PREFORMED PACKING (30) on the support (20).
(b) Lubricate the seal ring assembly (40) with engine oil (Material No.CP2442) .
(c) Install the seal ring assembly (40) in the starter drive pad of the accessory gearbox.
END OF SB CFM56-5 72-454
(6) Align locating dowel on the starter (60) with locating hole on AGB housing. Engage the starter carefully in the drive pad to prevent damage to the O-ring (50). If necessary, turn the starter output drive-shaft by hand to align mating splines.
(7) Install the V-clamp.
CAUTION:
MAKE SURE THAT THE DUCTS ARE CORRECTLY CONNECTED WHEN YOU TORQUE THE COUPLINGS. IF THE DUCTS ARE NOT CORRECTLY CONNECTED THEY CAN LEAK AND CAUSE DAMAGE TO ADJACENT ELECTRICAL COMPONENTS.
(a) Install the applicable V-clamp (10) on the mating flanges. Apply a thin layer of graphite grease (Material No.CP2101) to the nut threads. Install the nut and TORQUE to between 80 and 75 lbf.in (0.90 and 0.85 m.daN )
. (b) Install the V-clamp (70) which attaches the air supply duct (80) to starter (60). Apply a thin layer of graphite grease (Material No.CP2101) to the nut threads. Install the nut and TORQUE to between 80 and 70 lbf.in (0.90 and 0.79 m.daN )
. (8) Fill the starter with engine oil (Material No.CP2442) (Ref. AMM TASK 12-13-80-610-002).
B. Test
5. Close-upCAUTION:
DO NOT OPERATE THE ENGINE WITHOUT A CORRECTLY INSTALLED STARTER ON THE AGB STARTER DRIVE PAD.
IF THE STARTER IS NOT INSTALLED CORRECTLY, THE ENGINE CAN HAVE OIL LEAKAGE. THIS CAN CAUSE ENGINE FAILURE.
(1) Do a minimum idle check and do a check for oil leaks at the starter drive pad and air leaks at starter to air duct connection (Ref. AMM TASK 71-00-00-710-006). Subtask 80-11-10-410-050-A ** ON A/C NOT FOR ALL