DOC AIRBUS | AMM A320FDisengagement/Engagement of the Horizontal Drive Shaft [CFMB]
TASK 72-63-00-860-001-A
Disengagement/Engagement of the Horizontal Drive Shaft
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 72-63-00-941-059-A ** ON A/C NOT FOR ALL
Subtask 72-63-00-010-067-A ** ON A/C NOT FOR ALL
Subtask 72-63-00-410-064-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:43:44 UTC
Disengagement/Engagement of the Horizontal Drive Shaft
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 | HAMMER - SLIDE |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 1148 and 882 lbf.in (12.97 and 9.97 m.daN )  | |
| 856A2632 | 1 | PULLER |
| 856A2718 | 1 | TOOL SET,R/I-DRIVE SHAFTS |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2442) | engine oil |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 40 | O-RING | AIPC 72-63-00-04-060 |
| 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 72-63-00-000-002-A | Removal of the Handcranking Drive Cover |
| TASK 72-63-00-400-002-A | Installation of the Handcranking Drive Cover |
Removal of the Nut and of the Handcranking DriveSubtask 72-63-00-941-059-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 72-63-00-010-066-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Get Access
(1) Open the fan cowls doors: (Ref. AMM TASK 71-13-00-010-040)
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(4) Remove the handcranking drive cover (Ref. AMM TASK 72-63-00-000-002).
4. Procedure(1) Open the fan cowls doors: (Ref. AMM TASK 71-13-00-010-040)
(2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(4) Remove the handcranking drive cover (Ref. AMM TASK 72-63-00-000-002).
Subtask 72-63-00-010-067-A ** ON A/C NOT FOR ALL
A. Removal of the Handcranking Drive Nut
(1) Install the wrench, part of the 856A2718 TOOL SET,R/I-DRIVE SHAFTS (856A2718G02) as follows:
(a) Set the wrench guide on the AGB housing and attach it with the 2 bolts supplied.
(b) Turn the wrench axle to engage the forward square end of the axle into the handcranking drive (10).
(2) Loosen the nut (20). Use the axle as a countertorque device.
(3) Remove the tool and the nut (20) from the AGB housing.
Subtask 72-63-00-010-068-A ** ON A/C NOT FOR ALL (1) Install the wrench, part of the 856A2718 TOOL SET,R/I-DRIVE SHAFTS (856A2718G02) as follows:
(a) Set the wrench guide on the AGB housing and attach it with the 2 bolts supplied.
(b) Turn the wrench axle to engage the forward square end of the axle into the handcranking drive (10).
(2) Loosen the nut (20). Use the axle as a countertorque device.
(3) Remove the tool and the nut (20) from the AGB housing.
B. Removal of the Handcranking Drive
(1) Install and tighten the 856A2632 PULLER (856A2632G01) into the tapped hole of the handcranking drive (10).
(2) Install and tighten a HAMMER - SLIDE into the puller.
(3) Operate the HAMMER - SLIDE and remove the handcranking drive (10).
(4) Remove the HAMMER - SLIDE from the puller.
(5) Remove the 856A2632 PULLER (856A2632G01) from the handcranking drive (10).
(6) Remove O-ring (40) from the handcranking drive (10). Discard the O-ring (40).
Subtask 72-63-00-869-054-A ** ON A/C NOT FOR ALL (1) Install and tighten the 856A2632 PULLER (856A2632G01) into the tapped hole of the handcranking drive (10).
(2) Install and tighten a HAMMER - SLIDE into the puller.
(3) Operate the HAMMER - SLIDE and remove the handcranking drive (10).
(4) Remove the HAMMER - SLIDE from the puller.
(5) Remove the 856A2632 PULLER (856A2632G01) from the handcranking drive (10).
(6) Remove O-ring (40) from the handcranking drive (10). Discard the O-ring (40).
C. Disengagement of the Horizontal Drive Shaft
(1) Use the puller part of the 856A2718 TOOL SET,R/I-DRIVE SHAFTS (856A2718G02) as follows:
(a) Put the guide pins of the puller into the internal splines of the gearshaft.
(b) Tighten the tool screw by hand into the shaft.
(2) Install and tighten a HAMMER - SLIDE into the puller.
(3) Pull the horizontal drive shaft until the splines disengage from the horizontal bevel gear.
(4) Remove the HAMMER - SLIDE and the puller from the shaft.
Subtask 72-63-00-869-055-A ** ON A/C NOT FOR ALL (1) Use the puller part of the 856A2718 TOOL SET,R/I-DRIVE SHAFTS (856A2718G02) as follows:
(a) Put the guide pins of the puller into the internal splines of the gearshaft.
(b) Tighten the tool screw by hand into the shaft.
(2) Install and tighten a HAMMER - SLIDE into the puller.
(3) Pull the horizontal drive shaft until the splines disengage from the horizontal bevel gear.
(4) Remove the HAMMER - SLIDE and the puller from the shaft.
D. Engagement of the Horizontal Drive Shaft
(1) Put the horizontal drive shaft back to its initial position as follows:
(a) Install and tighten the puller part of the 856A2718 TOOL SET,R/I-DRIVE SHAFTS (856A2718G02) into the horizontal drive shaft.
(b) Push the puller and turn it to engage the guide pins into the internal gearshaft splines.
(c) Push the horizontal drive shaft fully rearward, until the splines engage the horizontal bevel gear (when the TGB is installed).
(d) Remove the puller from the horizontal drive shaft.
Subtask 72-63-00-410-062-A ** ON A/C NOT FOR ALL (1) Put the horizontal drive shaft back to its initial position as follows:
(a) Install and tighten the puller part of the 856A2718 TOOL SET,R/I-DRIVE SHAFTS (856A2718G02) into the horizontal drive shaft.
(b) Push the puller and turn it to engage the guide pins into the internal gearshaft splines.
(c) Push the horizontal drive shaft fully rearward, until the splines engage the horizontal bevel gear (when the TGB is installed).
(d) Remove the puller from the horizontal drive shaft.
E. Installation of the Handcranking Drive
(1) Lubricate a new AIPC 72-63-00-04-060 O-RING (40) with engine oil (Material No.CP2442) and install into the groove of the handcranking drive (10).
(2) Lubricate the handcranking drive splines with engine oil (Material No.CP2442) and check for cleanliness of mating faces.
(3) Install the 856A2632 PULLER (856A2632G01) into the handcranking drive.
(4) Push the puller to install the handcranking drive in the drive AGB. Turn the puller to engage the handcranking drive into the internal gearshaft splines. Push again until the handcranking drive shaft touches the horizontal drive shaft.
(5) Remove the puller from the handcranking drive.
Subtask 72-63-00-410-063-A ** ON A/C NOT FOR ALL (1) Lubricate a new AIPC 72-63-00-04-060 O-RING (40) with engine oil (Material No.CP2442) and install into the groove of the handcranking drive (10).
(2) Lubricate the handcranking drive splines with engine oil (Material No.CP2442) and check for cleanliness of mating faces.
(3) Install the 856A2632 PULLER (856A2632G01) into the handcranking drive.
(4) Push the puller to install the handcranking drive in the drive AGB. Turn the puller to engage the handcranking drive into the internal gearshaft splines. Push again until the handcranking drive shaft touches the horizontal drive shaft.
(5) Remove the puller from the handcranking drive.
F. Installation of the Handcranking Drive Nut
(1) Make sure that the retaining ring (30) is installed into the groove of the nut (20).
(2) Lubricate external threads of the nut (20) with engine oil (Material No.CP2442) .
(3) Engage the nut (20) on the wrench part of the 856A2718 TOOL SET,R/I-DRIVE SHAFTS (856A2718G02).
(4) Safety the wrench guide on the AGB housing with the 2 bolts supplied.
(5) Turn the wrench axle to engage its forward square end into the handcranking drive (10).
(6) Use the wrench axle as countertorque to install the nut. TORQUE the nut (20) to between 1148 and 882 lbf.in (12.97 and 9.97 m.daN ).
(7) Remove the tool from the AGB.
5. Close-up(1) Make sure that the retaining ring (30) is installed into the groove of the nut (20).
(2) Lubricate external threads of the nut (20) with engine oil (Material No.CP2442) .
(3) Engage the nut (20) on the wrench part of the 856A2718 TOOL SET,R/I-DRIVE SHAFTS (856A2718G02).
(4) Safety the wrench guide on the AGB housing with the 2 bolts supplied.
(5) Turn the wrench axle to engage its forward square end into the handcranking drive (10).
(6) Use the wrench axle as countertorque to install the nut. TORQUE the nut (20) to between 1148 and 882 lbf.in (12.97 and 9.97 m.daN )
. (7) Remove the tool from the AGB.
Subtask 72-63-00-410-064-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) Install the handcranking drive cover (Ref. AMM TASK 72-63-00-400-002).
(3) Close the fan cowls (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(4) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the handcranking drive cover (Ref. AMM TASK 72-63-00-400-002).
(3) Close the fan cowls (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(4) Remove the WARNING NOTICE(S).