DOC AIRBUS | AMM A320FInstallation of the Rotating Seals of the Accessory Gearbox (AGB) [CFML]
TASK 72-63-43-400-801-A
Installation of the Rotating Seals of the Accessory Gearbox (AGB)
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 72-63-43-941-051-A
Subtask 72-63-43-410-050-A
[Rev.10 from 2021]
2026.04.01 02:54:57 UTC
Installation of the Rotating Seals of the Accessory Gearbox (AGB)
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.
WARNING:
YOU MUST USE CORRECT APPLICABLE GLOVES, FACEMASK, EYESHIELDS AND PROTECTIVE CLOTHES AT ALL TIMES.
WARNING:
ALWAYS USE APPROVED EQUIPMENT AND PROCEDURES TO LIFT PARTS. STAY OUT FROM BELOW LOADS. IF THE PARTS ACCIDENTALLY MOVE OR FALL, THEY CAN CAUSE AN INJURY OR KILL YOU.
WARNING:
USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
WARNING:
BEFORE YOU INSTALL/REMOVE THE GSE TOOL, READ THE MANUFACTURER'S INSTRUCTIONS, AND, WHILE YOU OPERATE THIS TOOL, CAREFULLY OBEY THEM. IF YOU DO NOT DO THIS, INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
CAUTION:
MAKE SURE THAT THE ROTATING-SEAL HOUSING AND MATING-RING DOES NOT FALL FROM THE REMOVAL/INSTALLATION TOOL. THIS WILL PREVENT DAMAGE FROM PARTS, TOOLS OR UNWANTED MATERIAL THAT FALL ON THE ENGINE.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CP2442) | engine oil |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2) | |
| 447AL, 448AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 5 | RING, RETAINING | EIPC 72-63-00-01-260 |
| 9 | O-RING | EIPC 72-63-00-01-300 |
| 7 | O-RING | EIPC 72-63-00-01-310 |
| 10 | RING, RETAINING | EIPC 72-63-00-01-320 |
| 14 | O-RING | EIPC 72-63-00-01-360 |
| 12 | O-RING | EIPC 72-63-00-01-370 |
| 15 | RING, RETAINING | EIPC 72-63-00-01-380 |
| 19 | O-RING | EIPC 72-63-00-01-420 |
| 17 | O-RING | EIPC 72-63-00-01-430 |
| 20 | RING, RETAINING | EIPC 72-63-00-01-450 |
| 24 | O-RING | EIPC 72-63-00-01-490 |
| 22 | O-RING | EIPC 72-63-00-01-500 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-13-79-610-805-A | Check of the Oil Level and Replenishing |
| TASK 24-21-51-400-806-A | Installation of the Integrated Drive Generator (IDG) - IDG 1(2) |
| TASK 29-11-51-000-808-A | Removal of the Engine Pump |
| TASK 71-00-00-790-805-A | Fuel or Hydraulic or Oil Leakage Limits |
| TASK 71-00-00-790-809-A | 70% N1 Leak Check |
| TASK 71-13-00-010-803-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-803-A | Closing of the Fan Cowl Doors |
| TASK 72-63-03-400-801-A | Installation of the Manual-Control Cover of the Accessory Gearbox |
| TASK 72-63-43-000-801-A | Removal of the Rotating Seals of the Accessory Gearbox (AGB) |
| TASK 73-11-05-400-801-A | Installation of the Main Fuel Pump |
Two Parts of the AGB Rotating Seal: Housing and Mating RingSubtask 72-63-43-941-051-A
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
Subtask 72-63-43-010-051-A (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
- The ENG/MODE selector switch, and
- The ENG/MASTER 1(2) control switch.
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
4. Procedure(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
CAUTION:
MAKE SURE THAT THE ALVEOLUS IS NOT SEEN WHEN THE MATING RING IS INSTALLED ON THE MATING RING REMOVAL/INSTALLATION TOOL FOR INSTALLATION OF THE MATING RING.
CAUTION:
MAKE SURE THAT THE ALVEOLUS IS SEEN AFTER THE INSTALLATION OF THE MATING RING.
CAUTION:
DO NOT USE A SCREWDRIVER OR EQUIVALENT TOOLS AS A LEVER AS IT CAN DAMAGE THE ROTATING SEAL OR THE ACCESSORY GEARBOX COVER.
Subtask 72-63-43-420-050-A A. Installation of the Rotating Seals of the AGB
(b) Install the new O-ring (9) in the groove of the mating ring (8).
(c) Insert the two locking pins of the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the two slots of the mating ring (8).
(d) Rotate the mating ring (8) by 90 degrees to engage it with the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS, whatever the direction.
(e) Install the mating ring (8) in the groove at the location of the manual control cover (1) and push until it is seated against the AGB spur gear.
(f) (g) (h) Check that calculated value D1 is lower or equal to value D:
1 If dimension D1 is correct, go to Para. 4.A.(1)(n).
2 If D1 is out of limit, remove the mating ring and re-do operations Para. 4.A.(1)(a) to Para. 4.A.(1)(f). For the removal of the mating ring, refer to (Ref. AMM TASK 72-63-43-000-801).
3 If after two trials D1 is still out of limit, remove and replace the mating ring (8).
(i) Lubricate the new EIPC 72-63-00-01-310 O-RING (7) of the rotating seal housing (6) with the engine oil (Material No.CP2442) .
(j) Install the new O-ring (7) in the groove of rotating seal housing (6).
(k) Insert the three slots of the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the three locking pins of the rotating seal housing (6).
(l) Rotate the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS to engage it with the rotating seal housing (6), whatever the direction.
(m) Install the rotating seal housing (6) in the groove at the location of the manual control cover (1) and push until it is seated against the mating ring (8).
(n) Remove the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS and make sure that the groove for the retaining ring (5) is clean.
(o) Install the new72630001-260 RING, RETAINING 5
1 Install the first end of the retaining ring (5) in its groove.
2 Keep the end of the extremity fitted while pushing on the rest of the retaining ring (5).
3 Make sure that the retaining ring (5) is fully engaged in its groove.
(p) Install the manual control cover (1) (Ref. AMM TASK 72-63-03-400-801).
(2) (a) Lubricate the new EIPC 72-63-00-01-360 O-RING (14) of the mating ring (13) with the engine oil (Material No.CP2442) .
(b) Install the new O-ring (14) in the groove of the mating ring (13).
(c) Insert the two locking pins of the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the two slots of the mating ring (13).
(d) Rotate the mating ring (13) by 90 degrees to engage it with the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS, whatever the direction.
(e) Install the mating ring (13) in the groove at the location of the IDG (2) and push until it is seated against the AGB spur gear.
(f) (g) (h) Check that calculated value D1 is lower or equal to value D:
1 If dimension D1 is correct, go to Para. 4.A.(2)(n).
2 If D1 is out of limit, remove the mating ring and re-do operations Para. 4.A.(2)(a) to Para. 4.A.(2)(f). For the removal of the mating ring, refer to (Ref. AMM TASK 72-63-43-000-801).
3 If after two trials D1 is still out of limit, remove and replace the mating ring (13).
(i) Lubricate the new EIPC 72-63-00-01-370 O-RING (12) of the rotating seal housing (11) with the engine oil (Material No.CP2442) .
(j) Install the new O-ring (12) in the groove of the rotating seal housing (11).
(k) Insert the three slots of the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the three locking pins of the rotating seal housing (11).
(l) Rotate the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS to engage it with the rotating seal housing (11), whatever the direction.
(m) Install the rotating seal housing (11) in the groove at the location of the IDG (2) and push until it is seated against the mating ring (13).
(n) Remove the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS and make sure that the groove for the retaining ring (10) is clean.
(o) Install the new72630001-320 RING, RETAINING 10
1 Install the first end of the retaining ring (10) in its groove.
2 Keep the end of the extremity fitted while pushing on the rest of the retaining ring (10).
3 Make sure that the retaining ring (10) is fully engaged in its groove.
(p) Install the IDG (2) (Ref. AMM TASK 24-21-51-400-806).
(3) (a) Lubricate the new EIPC 72-63-00-01-420 O-RING (19) of the mating ring (18) with the engine oil (Material No.CP2442) .
(b) Install the new O-ring (19) in the groove of the mating ring (18).
(c) Insert the two locking pins of the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the two slots of the mating ring (18).
(d) Rotate the mating ring (18) by 90 degrees to engage it with the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS, whatever the direction.
(e) Install the mating ring (18) in the groove at the location of the EDP (3) and push until it is seated against the AGB spur gear.
(f) (g) (h) Check that calculated value D1 is lower or equal to value D:
1 If dimension D1 is correct, go to Para. 4.A.(3)(n).
2 If D1 is out of limit, remove the mating ring and re-do operations Para. 4.A.(3)(a) to Para. 4.A.(3)(f). For the removal of the mating ring, refer to (Ref. AMM TASK 72-63-43-000-801).
3 If after two trials D1 is still out of limit, remove and replace the mating ring (18).
(i) Lubricate the new EIPC 72-63-00-01-430 O-RING (17) of the rotating seal housing (16) with the engine oil (Material No.CP2442) .
(j) Install the new O-ring (17) in the groove of the rotating seal housing (16).
(k) Insert the three slots of the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the three locking pins of the rotating seal housing (16).
(l) Rotate the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS to engage it with the rotating seal housing (16), whatever the direction.
(m) Install the rotating seal housing (16) in the groove at the location of the EDP (3) and push until it is seated against the mating ring (18).
(n) Remove the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS and make sure that the groove for the retaining ring (15) is clean.
(o) Install the new72630001-380 RING, RETAINING 15
1 Install the first end of the retaining ring (15) in its groove.
2 Keep the end of the extremity fitted while pushing on the rest of the retaining ring (15).
3 Make sure that the retaining ring (15) is fully engaged in its groove.
(p) Install the EDP (3) (Ref. AMM TASK 29-11-51-000-808).
(4) (a) Lubricate the new EIPC 72-63-00-01-490 O-RING (24) of the mating ring (23) with the engine oil (Material No.CP2442) .
(b) Install the new O-ring (24) in the groove of the mating ring (23).
(c) Insert the two locking pins of the mating-ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the two slots of the mating ring (23).
(d) Rotate the mating ring (23) by 90 degrees to engage it with the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS, whatever the direction.
(e) Install the mating ring (23) in the groove at the location of the main fuel pump (4) and push until it is seated against the AGB spur gear.
(f) (g) (h) Check that calculated value D1 is lower or equal to value D:
1 If dimension D1 is correct, go to Para. 4.A.(4)(n).
2 If D1 is out of limit, remove the mating ring and re-do operations Para. 4.A.(4)(a) to Para. 4.A.(4)(f). For the removal of the mating ring, refer to (Ref. AMM TASK 72-63-43-000-801).
3 If after two trials D1 is still out of limit, remove and replace the mating ring (23).
(i) Lubricate the new EIPC 72-63-00-01-500 O-RING (22) of the rotating seal housing (21) with the engine oil (Material No.CP2442) .
(j) Install the new O-ring (22) in the groove of the rotating seal housing (21).
(k) Insert the three slots of the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the three locking pins of the rotating seal housing (21).
(l) Rotate the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS to engage it with the rotating seal housing (21), whatever the direction.
(m) Install the rotating seal housing (21) in the groove at the location of the main fuel pump (4) and push until it is seated against the mating ring (23).
(n) Remove the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS and make sure that the groove for the retaining ring (20) is clean.
(o) Install the new72630001-450 RING, RETAINING 20
1 Install the first end of the retaining ring (20) in its groove.
2 Keep the end of the extremity fitted while pushing on the rest of the retaining ring (20).
3 Make sure that the retaining ring (20) is fully engaged in its groove.
(p) Install the main fuel pump (4) (Ref. AMM TASK 73-11-05-400-801).
Subtask 72-63-43-710-050-A NOTE: Tool parts corresponding to the installation of each rotating seal housing and mating ring are identified in a table.
(1) (a) Lubricate the new EIPC 72-63-00-01-300 O-RING (9) of the mating ring (8) with the engine oil (Material No.CP2442) . (b) Install the new O-ring (9) in the groove of the mating ring (8).
(c) Insert the two locking pins of the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the two slots of the mating ring (8).
(d) Rotate the mating ring (8) by 90 degrees to engage it with the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS, whatever the direction.
(e) Install the mating ring (8) in the groove at the location of the manual control cover (1) and push until it is seated against the AGB spur gear.
(f) (g) (h) Check that calculated value D1 is lower or equal to value D:
1 If dimension D1 is correct, go to Para. 4.A.(1)(n).
2 If D1 is out of limit, remove the mating ring and re-do operations Para. 4.A.(1)(a) to Para. 4.A.(1)(f). For the removal of the mating ring, refer to (Ref. AMM TASK 72-63-43-000-801).
3 If after two trials D1 is still out of limit, remove and replace the mating ring (8).
(i) Lubricate the new EIPC 72-63-00-01-310 O-RING (7) of the rotating seal housing (6) with the engine oil (Material No.CP2442) .
(j) Install the new O-ring (7) in the groove of rotating seal housing (6).
(k) Insert the three slots of the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the three locking pins of the rotating seal housing (6).
(l) Rotate the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS to engage it with the rotating seal housing (6), whatever the direction.
(m) Install the rotating seal housing (6) in the groove at the location of the manual control cover (1) and push until it is seated against the mating ring (8).
(n) Remove the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS and make sure that the groove for the retaining ring (5) is clean.
(o) Install the new
1 Install the first end of the retaining ring (5) in its groove.
2 Keep the end of the extremity fitted while pushing on the rest of the retaining ring (5).
3 Make sure that the retaining ring (5) is fully engaged in its groove.
(p) Install the manual control cover (1) (Ref. AMM TASK 72-63-03-400-801).
(2) (a) Lubricate the new EIPC 72-63-00-01-360 O-RING (14) of the mating ring (13) with the engine oil (Material No.CP2442) .
(b) Install the new O-ring (14) in the groove of the mating ring (13).
(c) Insert the two locking pins of the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the two slots of the mating ring (13).
(d) Rotate the mating ring (13) by 90 degrees to engage it with the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS, whatever the direction.
(e) Install the mating ring (13) in the groove at the location of the IDG (2) and push until it is seated against the AGB spur gear.
(f) (g) (h) Check that calculated value D1 is lower or equal to value D:
1 If dimension D1 is correct, go to Para. 4.A.(2)(n).
2 If D1 is out of limit, remove the mating ring and re-do operations Para. 4.A.(2)(a) to Para. 4.A.(2)(f). For the removal of the mating ring, refer to (Ref. AMM TASK 72-63-43-000-801).
3 If after two trials D1 is still out of limit, remove and replace the mating ring (13).
(i) Lubricate the new EIPC 72-63-00-01-370 O-RING (12) of the rotating seal housing (11) with the engine oil (Material No.CP2442) .
(j) Install the new O-ring (12) in the groove of the rotating seal housing (11).
(k) Insert the three slots of the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the three locking pins of the rotating seal housing (11).
(l) Rotate the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS to engage it with the rotating seal housing (11), whatever the direction.
(m) Install the rotating seal housing (11) in the groove at the location of the IDG (2) and push until it is seated against the mating ring (13).
(n) Remove the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS and make sure that the groove for the retaining ring (10) is clean.
(o) Install the new
1 Install the first end of the retaining ring (10) in its groove.
2 Keep the end of the extremity fitted while pushing on the rest of the retaining ring (10).
3 Make sure that the retaining ring (10) is fully engaged in its groove.
(p) Install the IDG (2) (Ref. AMM TASK 24-21-51-400-806).
(3) (a) Lubricate the new EIPC 72-63-00-01-420 O-RING (19) of the mating ring (18) with the engine oil (Material No.CP2442) .
(b) Install the new O-ring (19) in the groove of the mating ring (18).
(c) Insert the two locking pins of the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the two slots of the mating ring (18).
(d) Rotate the mating ring (18) by 90 degrees to engage it with the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS, whatever the direction.
(e) Install the mating ring (18) in the groove at the location of the EDP (3) and push until it is seated against the AGB spur gear.
(f) (g) (h) Check that calculated value D1 is lower or equal to value D:
1 If dimension D1 is correct, go to Para. 4.A.(3)(n).
2 If D1 is out of limit, remove the mating ring and re-do operations Para. 4.A.(3)(a) to Para. 4.A.(3)(f). For the removal of the mating ring, refer to (Ref. AMM TASK 72-63-43-000-801).
3 If after two trials D1 is still out of limit, remove and replace the mating ring (18).
(i) Lubricate the new EIPC 72-63-00-01-430 O-RING (17) of the rotating seal housing (16) with the engine oil (Material No.CP2442) .
(j) Install the new O-ring (17) in the groove of the rotating seal housing (16).
(k) Insert the three slots of the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the three locking pins of the rotating seal housing (16).
(l) Rotate the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS to engage it with the rotating seal housing (16), whatever the direction.
(m) Install the rotating seal housing (16) in the groove at the location of the EDP (3) and push until it is seated against the mating ring (18).
(n) Remove the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS and make sure that the groove for the retaining ring (15) is clean.
(o) Install the new
1 Install the first end of the retaining ring (15) in its groove.
2 Keep the end of the extremity fitted while pushing on the rest of the retaining ring (15).
3 Make sure that the retaining ring (15) is fully engaged in its groove.
(p) Install the EDP (3) (Ref. AMM TASK 29-11-51-000-808).
(4) (a) Lubricate the new EIPC 72-63-00-01-490 O-RING (24) of the mating ring (23) with the engine oil (Material No.CP2442) .
(b) Install the new O-ring (24) in the groove of the mating ring (23).
(c) Insert the two locking pins of the mating-ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the two slots of the mating ring (23).
(d) Rotate the mating ring (23) by 90 degrees to engage it with the mating ring removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS, whatever the direction.
(e) Install the mating ring (23) in the groove at the location of the main fuel pump (4) and push until it is seated against the AGB spur gear.
(f) (g) (h) Check that calculated value D1 is lower or equal to value D:
1 If dimension D1 is correct, go to Para. 4.A.(4)(n).
2 If D1 is out of limit, remove the mating ring and re-do operations Para. 4.A.(4)(a) to Para. 4.A.(4)(f). For the removal of the mating ring, refer to (Ref. AMM TASK 72-63-43-000-801).
3 If after two trials D1 is still out of limit, remove and replace the mating ring (23).
(i) Lubricate the new EIPC 72-63-00-01-500 O-RING (22) of the rotating seal housing (21) with the engine oil (Material No.CP2442) .
(j) Install the new O-ring (22) in the groove of the rotating seal housing (21).
(k) Insert the three slots of the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS into the three locking pins of the rotating seal housing (21).
(l) Rotate the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS to engage it with the rotating seal housing (21), whatever the direction.
(m) Install the rotating seal housing (21) in the groove at the location of the main fuel pump (4) and push until it is seated against the mating ring (23).
(n) Remove the housing removal/installation tool of the 956A6201G01 PUSHER/PULLER - ROTATING SEALS and make sure that the groove for the retaining ring (20) is clean.
(o) Install the new
1 Install the first end of the retaining ring (20) in its groove.
2 Keep the end of the extremity fitted while pushing on the rest of the retaining ring (20).
3 Make sure that the retaining ring (20) is fully engaged in its groove.
(p) Install the main fuel pump (4) (Ref. AMM TASK 73-11-05-400-801).
B. Test(s)
(1) Do a check of the oil level (Ref. AMM TASK 12-13-79-610-805).
(2) Do a 70 percent N1 leak check (Ref. AMM TASK 71-00-00-790-809).
(3) Do a check of the two drain masts for leaks (Ref. AMM TASK 71-00-00-790-805).
5. Close-up(1) Do a check of the oil level (Ref. AMM TASK 12-13-79-610-805).
(2) Do a 70 percent N1 leak check (Ref. AMM TASK 71-00-00-790-809).
(3) Do a check of the two drain masts for leaks (Ref. AMM TASK 71-00-00-790-805).
Subtask 72-63-43-410-050-A