Replacement of the Bushes of the RIB4 Fittings

TASK 54-51-17-300-002-A
Replacement of the Bushes of the RIB4 Fittings

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: BEFORE YOU OPEN PHC CIRCUIT BREAKERS 2DA1(2,3), OPEN PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE: - THE PROBES WILL BECOME TOO HOT. - THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.

ZONE: 400

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	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
98D54003015000	1	R I RING AT RIB 4/5

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
34	BUSH	AIPC 54-51-17-01-100
35	BUSH	AIPC 54-51-17-01-100
36	BUSH	AIPC 54-51-17-01-104
37	BUSH	AIPC 54-51-17-01-280

E. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 28-00-00-910-001-A	Fuel Safety Procedures
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 54-50-00-000-001-A	Removal of the Pylons
TASK 54-50-00-400-001-A	Installation of the Pylons
TASK 54-51-17-300-003-A	Reboring of the RIB4 Fittings
Removal of the Internal Center Bushes ** ON A/C NOT FOR ALL
Removal of the Internal Center Bushes ** ON A/C NOT FOR ALL
Removal of the Internal Center Bushes ** ON A/C NOT FOR ALL
Removal of the Internal and External Center Bushes ** ON A/C NOT FOR ALL
Removal of the Internal and External Center Bushes ** ON A/C NOT FOR ALL
Removal of the Internal and External Center Bushes ** ON A/C NOT FOR ALL
Removal of the External Bushes ** ON A/C NOT FOR ALL
Removal of the External Bushes ** ON A/C NOT FOR ALL
Removal of the External Bushes ** ON A/C NOT FOR ALL
Installation of the Center Bushes ** ON A/C NOT FOR ALL
Installation of the Center Bushes ** ON A/C NOT FOR ALL
Installation of the Center Bushes ** ON A/C NOT FOR ALL
Installation of the External and Internal Bushes ** ON A/C NOT FOR ALL
Installation of the External and Internal Bushes ** ON A/C NOT FOR ALL
Installation of the External and Internal Bushes ** ON A/C NOT FOR ALL
Installation of the Boring Bar ** ON A/C NOT FOR ALL
Installation of the Boring Bar ** ON A/C NOT FOR ALL
Installation of the Boring Bar ** ON A/C NOT FOR ALL
Reboring of the Bushes ** ON A/C NOT FOR ALL
Reboring of the Bushes ** ON A/C NOT FOR ALL
Reboring of the Bushes ** ON A/C NOT FOR ALL
Deburring of the Bushes ** ON A/C NOT FOR ALL
Deburring of the Bushes ** ON A/C NOT FOR ALL
Deburring of the Bushes ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 54-51-17-861-052-A ** ON A/C NOT FOR ALL

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 54-51-17-941-067-A ** ON A/C NOT FOR ALL

B. 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).
(4) Obey the fuel safety procedures (Ref. AMM TASK 28-00-00-910-001) when you do work on the fuel system.

Subtask 54-51-17-865-050-A ** ON A/C NOT FOR ALL

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	ENGINE/2/HP FUEL SOV	1KC2	A02
49VU	ENGINE/2/HP FUEL SOV	1KC2	A02
49VU	ENGINE/1/HP FUEL SOV	1KC1	A01
49VU	ENGINE/1/HP FUEL SOV	1KC1	A01
49VU	ANTI ICE/PROBES/AOA/1	4DA1	D04
49VU	ANTI ICE/PROBES/AOA/1	4DA1	D04
49VU	ANTI ICE/PROBES/PHC/1	2DA1	D03
49VU	ANTI ICE/PROBES/PITOT/1	3DA1	D02
49VU	ANTI ICE/PROBES/PITOT/1	3DA1	D02
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
122VU	ANTI ICE/ENG/2	1DN2	W10
122VU	ANTI ICE/ENG/2	1DN2	W10
122VU	ANTI ICE/PROBES/PHC/3	2DA3	Y16
122VU	ANTI ICE/PROBES/PHC/3	2DA3	Y16
122VU	ANTI ICE/PROBES/2/TAT	1DA2	Y15
122VU	ANTI ICE/PROBES/2/PITOT	3DA2	Y14
122VU	ANTI ICE/PROBES/2/PITOT	3DA2	Y14
122VU	ANTI ICE/PROBES/2/AOA	4DA2	Y13
122VU	ANTI ICE/PROBES/2/AOA	4DA2	Y13
122VU	ANTI ICE/PROBES/PHC/2	2DA2	Y12
122VU	ANTI ICE/PROBES/2/STATIC	5DA2	Y11
122VU	ANTI ICE/PROBES/2/STATIC	5DA2	Y11
122VU	ANTI ICE/PROBES/3/PITOT	3DA3	Z16
122VU	ANTI ICE/PROBES/3/PITOT	3DA3	Z16
122VU	ANTI ICE/PROBES/3/AOA	4DA3	Z15
122VU	ANTI ICE/PROBES/3/AOA	4DA3	Z15
122VU	ANTI ICE/PROBES/1/STATIC	5DA1	Z13
122VU	ANTI ICE/PROBES/1/STATIC	5DA1	Z13
122VU	ANTI ICE/PROBES/1/TAT	1DA1	Z12
122VU	ANTI ICE/PROBES/1/TAT	1DA1	Z12
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03

Subtask 54-51-17-864-050-A ** ON A/C NOT FOR ALL

D. Aircraft Maintenance Configuration
(1) Make sure that the hydraulic systems are depressurized (Ref. AMM TASK 29-00-00-864-001).

Subtask 54-51-17-020-078-A ** ON A/C NOT FOR ALL

E. Removal of Components
(1) Remove the pylon (Ref. AMM TASK 54-50-00-000-001).

4. Procedure

NOTE: This procedure is the same for the left and the right pylon.

NOTE: You must: remove the bushes on the two fittings, rebore the fittings (when necessary), install the new bushes and rebore the new bushes on the two fittings.

Subtask 54-51-17-020-079-A ** ON A/C NOT FOR ALL

A. Removal of the Bushes with the Tool 98D54003015000 R I RING AT RIB 4/5 (98D54003015000)
(1) Remove the internal center bushes (7) and (8):

Removal of the Internal Center Bushes ** ON A/C NOT FOR ALL

NOTE: The procedure that follows is given for one side and is the same for the other side.

(a) Install the 4 stops (1).
(b) Put the expander (2) between the two fittings.

NOTE: You must be careful to put the stops (1) and the expander (2) in position correctly to prevent damage to the fittings during removal of the bushes.

(c) Install the washer (3) and the nut (4) on the extractor (5).
(d) Put the extractor (5) into the fittings.
(e) Put the end of the extractor (5) in position between the two center bushes.

NOTE: You must be careful to put the extractor (5) in position correctly to prevent damage to the bushes.

(f) Turn the nut (6) of the extractor (5).
(g) Remove the internal center bush (7). To do this, turn the nut (4).
(h) Remove the expander (2).
(2) Remove the other bushes:

NOTE: The procedure that follows is given for one side and is the same for the other side.

(a) Remove the internal bushes (10) and the external center bushes (11):

Removal of the Internal and External Center Bushes ** ON A/C NOT FOR ALL

1 Install the push ring (12) on the screw (13).
2 Install the screw (13) in the fittings.
3 Install the washer (3) and the nut (4) on the screw (13).
4 Remove the internal bush (10). To do this, turn the nut (4).
5 Remove the nut (4) and the washer (3) from the screw (13).
6 Remove the screw (13) from the fittings.
7 Remove the internal bush (10).
8 Install the screw (13) in the fittings.
9 Install the washer (3) and the nut (4) on the screw (13).
10 Remove the external center bush (11). To do this, turn the nut (4).
11 Remove the nut (4) and the washer (3) from the screw (13).
12 Remove the screw (13) from the fittings.
13 Remove the external center bush (11).
(b) Remove the external bushes (20):

Removal of the External Bushes ** ON A/C NOT FOR ALL

1 Install the push ring (12) on the screw (13).
2 Install the screw (13) in the fittings.
3 Install the washer (3) and the nut (4) on the screw (13).
4 Remove the external bush (20). To do this, turn the nut (4).
5 Remove the nut (4) and the washer (3) from the screw (13).
6 Remove the screw (13) from the fittings.
7 Remove the external bushes (20).

Subtask 54-51-17-220-090-A ** ON A/C NOT FOR ALL

B. Inspection of the Fittings
(1) Do the inspection of the bores of the fitting.
(2) Make sure that there is no damage, wear or corrosion and that the diameter of the bore is 44 +0.0 mm or +0.03 mm (1.7323 +0.0000 in. or +0.0012 in.).
(3) If there is damage or the diameter of the bore is out of the tolerance: rebore the attach fitting to the repair size diameter (Ref. AMM TASK 54-51-17-300-003).

Subtask 54-51-17-420-078-A ** ON A/C NOT FOR ALL

C. Installation of the Bushes with the Tool 98D54003015000 R I RING AT RIB 4/5 (98D54003015000)

NOTE: This procedure is given for one side and is the same for the other side.

(1) Install the center bushes:

Installation of the Center Bushes ** ON A/C NOT FOR ALL

NOTE: This procedure is the same for the external and the internal center bushes.

(a) Make sure that the surface of the fitting bores is clean. If necessary, clean the surface with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(b) Install the centering pin (30) and expand it until it touches the fitting bore.
(c) Install the reducer (31) in the centering pin (30).
(d) Install the push pin (32) in the reducer (31) without protrusion from the reducer.
(e) Soak the new center AIPC 54-51-17-01-100 BUSH (34) (or the new center AIPC 54-51-17-01-100 BUSH (35)) in liquid nitrogen for 2 minutes.

NOTE: You must install the bush in less than 20 seconds.

(f) Install the bush on the bush tool (33) (less than 10 seconds).
(g) Put the bush in position in front of the bore and push the bush tool (33) with the push pin (32) (less than 10 seconds).
(h) Apply a force on the bush tool (33) with the push pin (32) for 1 minute.
(i) Remove the bush tool (33), the push pin (32), the reducer (31) and the centering pin (30).
(2) Install the external and internal bushes:

Installation of the External and Internal Bushes ** ON A/C NOT FOR ALL

NOTE: This procedure is the same for the external and the internal bushes.

(a) Make sure that the surface of the fitting bores is clean. If necessary, clean the surface with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(b) Install the centering pin (30) and expand it until it touches the fitting bore.
(c) Install the reducer (31) in the centering pin (30).
(d) Install the push pin (32) in the reducer (31) without protrusion from the reducer.
(e) Soak the new AIPC 54-51-17-01-104 BUSH (36) (or the new AIPC 54-51-17-01-280 BUSH (37)) in liquid nitrogen for 2 minutes.

NOTE: You must install the bush in less than 20 seconds.

Subtask 54-51-17-420-079-A ** ON A/C NOT FOR ALL

D. Installation for Bush Reboring of the Bell which is part of the Tool 98D54003015000 R I RING AT RIB 4/5 (98D54003015000)

Installation of the Boring Bar ** ON A/C NOT FOR ALL

NOTE: The procedure that follows is given for one side and is the same for the other side.

(1) Install the centering pins (51) and (52) and expand them until they touch the bushes.
(2) Put the boring bar (53) into the fittings and the centering pins (51) and (52).
(3) Put the bell (50) in the accurate position.
(4) Attach the bell (50) with the 3 "C" presses (54).
(5) Make sure that the boring bar (53) turns freely.
(6) Remove the boring bar (53).
(7) Remove the centering pin (51).

Subtask 54-51-17-320-050-A ** ON A/C NOT FOR ALL

E. Reboring of the Bushes with the Tool 98D54003015000 R I RING AT RIB 4/5 (98D54003015000)

Reboring of the Bushes ** ON A/C NOT FOR ALL

NOTE: The procedure that follows is given for one side and is the same for the other side.

(1) Install the borer (55):
(a) Make sure that the borer (55) is retracted.
(b) Hold the borer (55) between the two fittings.
(c) Put the boring bar (53) into the fittings, the centering pin (52), the borer (55) and the bell (50).
(d) Install the pin (56) in the boring bar (53).
(2) Rebore the bushes to get an internal diameter of the bushes of 40 +0 mm or +0.03 mm (1.5748 +0.0000 in. or +0.0012 in.). If necessary, do the reboring procedure that follows again until you get the correct diameter value.

NOTE: The boring thickness is 0.02 +0.00 mm or +0.02 mm (0.0008 +0.0000 in. or +0.0008 in.).

(a) Expand the borer (55) with the adjustment nut (57).
(b) Lock the blades of the borer (55) with the locking nut (58).
(c) Turn the boring bar (53) slowly and push it lightly with a tap wrench to rebore the four bushes.

NOTE: You must always turn the boring bar (53) in the same direction to prevent damage to the borer (55) and to the bushes.

(d) Turn the boring bar (53) while you pull it to move back the borer (55) between the two fittings.

NOTE: You must continue to turn the boring bar (53) in the same direction (as for the reboring) to prevent damage to the borer (55) and to the bushes.

Subtask 54-51-17-020-080-A ** ON A/C NOT FOR ALL

F. Removal of the Bell which is Part of the Tool 98D54003015000 R I RING AT RIB 4/5 (98D54003015000)

Installation of the Boring Bar ** ON A/C NOT FOR ALL

Reboring of the Bushes ** ON A/C NOT FOR ALL

(1) Remove the pin (56) from the boring bar (53).
(2) Remove the boring bar (53) and the borer (55) from the fittings.
(3) Remove the centering pin (52).
(4) Remove the 3 "C" presses (54) and the bell (50).
(5) Make sure that the rebored diameter is in the correct condition and that the diameter value is in the correct tolerance.

Subtask 54-51-17-320-051-A ** ON A/C NOT FOR ALL

G. Deburring of the Bushes with the Tool 98D54003015000 R I RING AT RIB 4/5 (98D54003015000)

Deburring of the Bushes ** ON A/C NOT FOR ALL

NOTE: You must deburr each side of the external bushes and the external side of the center bushes.

NOTE: The deburring procedure is applicable to one side of the bush (61). For the other deburring procedures, do as follows:

for the bushes (62) and for the other side of the bush (61), use pliers to install the knife (65) in the correct position.
for the bushes (63) and (64), you must change the position of the centering pin (60) on the other side of the fittings.

(1) Install the centering pin (60) and expand it until it touches the bush.
(2) Install the reducer (66) in the centering pin (60).
(3) Install the long bar (67) in the reducer (66).
(4) Put the knife (65) in position on the bar.
(5) Tighten the bar (67) on the bar (68) to keep the knife (65) in position.
(6) Turn the handle of the bar (67) or (68) to deburr the bush.

5. Close-up
Subtask 54-51-17-110-052-A ** ON A/C NOT FOR ALL

A. Cleaning of the Fitting
(1) Clean the fitting with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .

Subtask 54-51-17-420-080-A ** ON A/C NOT FOR ALL

B. Installation of Components
(1) Install the pylon (Ref. AMM TASK 54-50-00-400-001).

Subtask 54-51-17-865-051-A ** ON A/C NOT FOR ALL

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	ENGINE/2/HP FUEL SOV	1KC2	A02
49VU	ENGINE/1/HP FUEL SOV	1KC1	A01
49VU	ANTI ICE/PROBES/AOA/1	4DA1	D04
49VU	ANTI ICE/PROBES/PHC/1	2DA1	D03
49VU	ANTI ICE/PROBES/PITOT/1	3DA1	D02
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
122VU	ANTI ICE/ENG/2	1DN2	W10
122VU	ANTI ICE/PROBES/PHC/3	2DA3	Y16
122VU	ANTI ICE/PROBES/2/TAT	1DA2	Y15
122VU	ANTI ICE/PROBES/2/PITOT	3DA2	Y14
122VU	ANTI ICE/PROBES/2/AOA	4DA2	Y13
122VU	ANTI ICE/PROBES/PHC/2	2DA2	Y12
122VU	ANTI ICE/PROBES/2/STATIC	5DA2	Y11
122VU	ANTI ICE/PROBES/3/PITOT	3DA3	Z16
122VU	ANTI ICE/PROBES/3/AOA	4DA3	Z15
122VU	ANTI ICE/PROBES/1/STATIC	5DA1	Z13
122VU	ANTI ICE/PROBES/1/TAT	1DA1	Z12
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03

Subtask 54-51-17-860-059-A ** ON A/C NOT FOR ALL

D. Put the aircraft back to its initial configuration.
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

Subtask 54-51-17-862-052-A ** ON A/C NOT FOR ALL

E. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.04.01 02:00:57 UTC