Installation of the Electric Pump

TASK 29-24-51-400-001-A
Installation of the Electric Pump

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: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 196
FIN: 3075GX

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	CONTAINER - HYDRAULIC FLUID RESISTANT
No specific	3	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.20 and 0.18 m.daN (17.70 and 15.93 lbf.in )
No specific	Torque wrench: range to between 0.308 and 0.252 m.daN (27.26 and 22.30 lbf.in )
No specific	Torque wrench: range to between 0.81 and 0.54 m.daN (71.68 and 47.79 lbf.in )
No specific	Torque wrench: range to between 0.78 and 0.69 m.daN (69.03 and 61.06 lbf.in )
No specific	Torque wrench: range to between 1.13 and 1.07 m.daN (100.00 and 94.69 lbf.in )
No specific	Torque wrench: range to between 1.19 and 1.07 m.daN (105.31 and 94.69 lbf.in )
No specific	Torque wrench: range to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in )
No specific	Torque wrench: range to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )
No specific	Torque wrench: range to between 1.88 and 1.76 m.daN (13.86 and 12.98 lbf.ft )
No specific	Torque wrench: range to between 3.20 and 2.90 m.daN (23.60 and 21.39 lbf.ft )
No specific	Torque wrench: range to between 3.47 and 3.19 m.daN (25.59 and 23.53 lbf.ft )
No specific	Torque wrench: range to between 5.90 and 5.40 m.daN (43.51 and 39.82 lbf.ft )
No specific	Torque wrench: range to between 6.82 and 6.26 m.daN (50.29 and 46.17 lbf.ft )
No specific	Torque wrench: range to between 10.70 and 9.70 m.daN (78.91 and 71.53 lbf.ft )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -
(Material No.14QDB1)	Wire-Locking Dia: 0.5 mm (0.020 inch) CRES Nickel Alloy -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
196	HYDRAULIC COMPT AND FAIRINGS
196BB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
10	NUTS	AIPC 29-13-03-07-060
18	UNION	AIPC 29-13-03-07-090
30	PACKING	AIPC 29-13-03-07-100
7	UNION	AIPC 29-13-03-07-110
29	PACKING	AIPC 29-13-03-07-120
2	UNION	AIPC 29-13-03-07-130
28	PACKING	AIPC 29-13-03-07-140
10	NUTS	AIPC 29-13-83-09-040
2	UNION	AIPC 29-13-83-09-150
28	PACKING	AIPC 29-13-83-09-160
7	UNION	AIPC 29-13-83-09-170
29	PACKING	AIPC 29-13-83-09-180
18	UNION	AIPC 29-13-83-09-190
30	PACKING	AIPC 29-13-83-09-200

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 20-23-14-910-001-A	Protection of Hydraulic Lines from Vibration and Chafing
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-00-00-870-004-A	Bleeding Procedure of the Yellow Hydraulic System Upstream of the Engine Pump
TASK 29-00-00-870-006-A	Bleeding Procedure of the Yellow Hydraulic System Upstream of the Yellow E-Pump
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-14-00-614-002-A	Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01	Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
TASK 29-23-00-860-001-A	Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 29-23-00-860-002-A	Connection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
Yellow Electric Pump
Yellow Electric Pump ** ON A/C NOT FOR ALL
Yellow Electric Pump ** ON A/C NOT FOR ALL
Routing of the Yellow Electric Pump hydrulic-pipes

3. Job Set-up
Subtask 29-24-51-860-052-A

A. Aircraft Maintenance Configuration

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(2) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Yellow hydraulic system

In the cockpit on the hydraulic section 40VU of the overhead panel
On the ground service panels of the Green and Yellow system.

(3) Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(4) Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
(5) Make sure that the access door 196BB is open.
(6) Make sure that the CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the connections of the electric pump (3).
(7) Make sure that the isolation coupling of the Power Transfer Unit (PTU) is disconnected (Ref. AMM TASK 29-23-00-860-001).
(8) Make sure that you do the bleeding procedure of the Yellow hydraulic system upstream of the engine pump (Ref. AMM TASK 29-00-00-870-004).

Subtask 29-24-51-865-051-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N31
** ON A/C ALL
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03

4. Procedure
Subtask 29-24-51-560-050-A ** ON A/C NOT FOR ALL

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

CAUTION: MAKE SURE THAT THE REPLACEMENT COMPONENT IS FULL WITH THE CORRECT FLUID BEFORE YOU INSTALL IT. IF YOU DO NOT DO THIS, YOU CAN CAUSE DAMAGE TO THE COMPONENT AND/OR THE SYSTEM.

A. Preparation of the Replacement Component

NOTE: The pump (3) and the attachment bracket (12) are a matched assembly. Always replace the pump and the attachment bracket as an assembly.

(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Make sure that the attachment bracket (12) and blower housing (23) are in the same position as on the removed pump (3). If necessary, do the procedure that follows:
(a) For pumps with part numbers 518150 and 693335:

1 Cut and remove the lockwire.
2 Remove the bolts (8) and the washers (9).
3 Remove the attachment bracket (12).
4 If necessary, adjust blower housing (23):
a Remove the screws (22) and the washers (21).
b Turn the blower housing (23) to correct position.
c Loosely install the washers (21) and the screws (22). TORQUE the screws (22) to between 0.20 and 0.18 m.daN (17.70 and 15.93 lbf.in )

.
5 Put the attachment bracket (12) in the correct position.
6 Loosely install the washers (9) and the bolts (8).
7 TORQUE the bolts (8) to between 1.19 and 1.07 m.daN (105.31 and 94.69 lbf.in )

8 Safety the bolts (8) with the 14QDB1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES Nickel Alloy -.
(b) For pumps with part number 974540:
1 Remove the bolts (8) and the washers (9).
2 Remove the attachment bracket (12).
3 If necessary, adjust blower housing (23):
a Remove the screws (22) and the washers (21).
b Turn the blower housing (23) to correct position.
c Loosely install the washers (21) and the screws (22).
d TORQUE the screws (22) to between 0.78 and 0.69 m.daN (69.03 and 61.06 lbf.in )

.
4 Put the attachment bracket (12) in the correct position.
5 Loosely install the washers (9) and the bolts (8).
6 TORQUE the bolts (8) to between 1.13 and 1.07 m.daN (100.00 and 94.69 lbf.in )

.
(c) For pumps with part number 4205601, 4205602, 4205603 and 4205604:

1 Cut and remove the lockwire.
2 Remove the bolts (8) and the washers (9).
3 Remove the attachment bracket (12).
4 If necessary, adjust blower housing (23):
a Remove the screws (22) and the washers (21).
b Turn the blower housing (23) to correct position.
c Loosely install the washers (21) and the screws (22).
d TORQUE the screws (22) to between 0.308 and 0.252 m.daN (27.26 and 22.30 lbf.in )

.
5 Put the attachment bracket (12) in the correct position.
6 Loosely install the washers (9) and the bolts (8).
7 TORQUE the bolts (8) to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in )

8 Safety the bolts (8) with the 14QDB1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES Nickel Alloy -.
(d) For the pumps with part number 51154-02, 51154-03, 51154-04 and 51154-05:
1 Remove the bolts (8) and the washers (9).
2 Remove the attachment bracket (12) and put it in the correct position.
3 Loosely install the washers (9) and the bolts (8).
4 TORQUE the bolts (8) to between 0.81 and 0.54 m.daN (71.68 and 47.79 lbf.in )

.
(e) For pumps with part number 3022143-000:
1 Remove the bolts (8) and the washers (9).
2 Remove the attachment bracket (12).
3 If necessary, adjust blower housing (23):
a Remove the screws (22) and the washers (21).
b Turn the blower housing (23) to correct position.
c Loosely install the washers (21) and the screws (22).
d TORQUE the screws (22) to between 0.78 and 0.69 m.daN (69.03 and 61.06 lbf.in )

.
4 Put the attachment bracket (12) in the correct position.
5 Loosely install the washers (9) and the bolts (8).
6 TORQUE the bolts (8) to between 1.19 and 1.07 m.daN (105.31 and 94.69 lbf.in )

.
(3) Make sure the replacement pump (3) is full with the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .
(4) If necessary fill the pump (3) with the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) .

Subtask 29-24-51-560-050-B ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT THE REPLACEMENT COMPONENT IS FULL WITH THE CORRECT FLUID BEFORE YOU INSTALL IT. IF YOU DO NOT DO THIS, YOU CAN CAUSE DAMAGE TO THE COMPONENT AND/OR THE SYSTEM.

A. Preparation of the Replacement Component

NOTE: The pump (3) and the attachment bracket (12) are a matched assembly. Always replace the pump and the attachment bracket as an assembly.

1 Cut and remove the lockwire.
2 Remove the bolts (8) and the washers (9).
3 Remove the attachment bracket (12).
4 If necessary, adjust blower housing (23):
a Remove the screws (22) and the washers (21).
b Turn the blower housing (23) to correct position.
c Loosely install the washers (21) and the screws (22).
d TORQUE the screws (22) to between 0.20 and 0.18 m.daN (17.70 and 15.93 lbf.in )

.
5 Put the attachment bracket (12) in the correct position.
6 Loosely install the washers (9) and the bolts (8).
7 TORQUE the bolts (8) to between 1.19 and 1.07 m.daN (105.31 and 94.69 lbf.in )

8 Safety the bolts (8) with the 14QDB1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES Nickel Alloy -.
(b) For pumps with part number 944540:
1 Remove the bolts (8) and the washers (9).
2 Remove the attachment bracket (12).
3 If necessary, adjust blower housing (23):
a Remove the screws (22) and the washers (21).
b Turn the blower housing (23) to correct position.
c Loosely install the washers (21) and the screws (22).
d TORQUE the screws (22) to between 0.78 and 0.69 m.daN (69.03 and 61.06 lbf.in )

.
4 Put the attachment bracket (12) in the correct position.
5 Loosely install the washers (9) and the bolts (8).
6 TORQUE the bolts (8) to between 1.13 and 1.07 m.daN (100.00 and 94.69 lbf.in )

.
(c) For pumps with part number 4205601, 4205602, 4205603 and 4205604:

1 Cut and remove the lockwire.
2 Remove the bolts (8) and the washers (9).
3 Remove the attachment bracket (12).
4 If necessary, adjust blower housing (23):
a Remove the screws (22) and the washers (21).
b Turn the blower housing (23) to correct position.
c Loosely install the washers (21) and the screws (22).
d TORQUE the screws (22) to between 0.308 and 0.252 m.daN (27.26 and 22.30 lbf.in )

.
5 Put the attachment bracket (12) in the correct position.
6 Loosely install the washers (9) and the bolts (8).
7 TORQUE the bolts (8) to between 1.19 and 1.08 m.daN (105.31 and 95.58 lbf.in )

.
4 Put the attachment bracket (12) in the correct position.
5 Loosely install the washers (9) and the bolts (8).
6 TORQUE the bolts (8) to between 1.19 and 1.07 m.daN (105.31 and 94.69 lbf.in )

NOTE: It is not permitted to use high-density fluid Skydrol 500B-4.

Subtask 29-24-51-420-050-B

B. Installation of the Electric Pump

CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU DO NOT USE THE SECOND WRENCH, THERE IS A RISK THAT YOU WILL LOOSEN OR TIGHTEN THE UNION TOO MUCH.

CAUTION: YOU MUST INSTALL HYDRAULIC TUBES WITH HYDRAULIC FLUID AS LUBRICANT.

(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the pump (3) into the correct position on the structure (11).
(4) Install the four bolts (15). Connect the bonding lead (13) at the same time.
(5) Install the new AIPC 29-13-03-07-060 NUTS (10) or AIPC 29-13-83-09-040 NUTS (10) and tighten them.

NOTE: If new nuts (10) are not available, use the removed nuts, but do not use the nuts (10) more than three times.

(6) If new nuts (10) are not available, do a breakaway torque check of each nut. The minimum breakaway torque value must be 0.04 m.daN (3.54 lbf.in). If the breakaway torque value is less than the limit, replace the nut(s).
(7) Remove the blanking plugs from the hydraulic line-end fittings, and the blanking caps from the unions of the pump (3).
(8) If the unions (2), (7) and (18) were removed, do the steps that follow:
(a) Apply the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the new AIPC 29-13-03-07-140 PACKING (28) or AIPC 29-13-83-09-160 PACKING (28) and the AIPC 29-13-03-07-130 UNION (2) or AIPC 29-13-83-09-150 UNION (2).
(b) Install the packing (28) on the union (2).
(c) For the pumps with the part numbers 51154-02, 51154-03, 51154-04, 51154-05, 974540, 4205601, 4205602, 4205603 and 3022143-000:

Install the union (2) in the pump (3) and TORQUE to between 10.70 and 9.70 m.daN (78.91 and 71.53 lbf.ft ) .

(d) For the pumps with the part numbers 518150 and 693335:

Install the union (2) in the pump (3) and TORQUE to between 6.82 and 6.26 m.daN (50.29 and 46.17 lbf.ft ) .

(e) Apply the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the new AIPC 29-13-03-07-120 PACKING (29) or AIPC 29-13-83-09-180 PACKING (29) and the AIPC 29-13-03-07-110 UNION (7) or AIPC 29-13-83-09-170 UNION (7).
(f) Install the packing (29) on the union (7).
(g) For the pumps with the part numbers 51154-02, 51154-03, 51154-04, 51154-05, 974540, 4205601, 4205602, 4205603 and 3022143-000:

Install the union (7) in the pump (3) and TORQUE to between 3.20 and 2.90 m.daN (23.60 and 21.39 lbf.ft ) .

(h) For the pumps with the part numbers 518150 and 693335:

Install the union (7) in the pump (3) and TORQUE to between 1.88 and 1.76 m.daN (13.86 and 12.98 lbf.ft ) .

(i) Apply the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the new AIPC 29-13-03-07-100 PACKING (30) or AIPC 29-13-83-09-200 PACKING (30) and the AIPC 29-13-03-07-090 UNION (18) or AIPC 29-13-83-09-190 UNION (18).
(j) Install the packing (30) on the union (18).
(k) For the pumps with the part numbers 51154-02, 51154-03, 51154-04, 51154-05, 974540, 4205601, 4205602, 4205603 and 3022143-000:

Install the union (18) in the pump (3) and TORQUE to between 5.90 and 5.40 m.daN (43.51 and 39.82 lbf.ft ) .

(l) For the pumps with the part numbers 518150 and 693335:

Install the union (18) in the pump (3) and TORQUE to between 3.47 and 3.19 m.daN (25.59 and 23.53 lbf.ft ) .

(9) Make sure that the hydraulic line end-fittings are serviceable.
(10) Apply the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the threads of the line end-fittings.
(11) Remove the blanking plug and connect the pressure pipe (19) to the union (18) on the outlet port of the pump (3). Make sure that the pipe is installed in the vertical position.

Routing of the Yellow Electric Pump hydrulic-pipes

NOTE: The pressure pipe (19) points to the top of the hydraulic compartment.

(12) TORQUE the pressure pipe (19) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft )

.
(13) Remove the blanking plug and connect the case drain pipe (6) to the pump (3).

Routing of the Yellow Electric Pump hydrulic-pipes

(a) Make sure that the routing of the case drain pipe (6) is above the pressure pipe (19).
(b) TORQUE the case drain pipe (6) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft )

.
(c) Attach the case drain pipe (6) to the pressure pipe (19) (Ref. AMM TASK 20-23-14-910-001).
(d) Make sure that there is a minimum clearance of 12 mm (0.4724 in.) around the pressure pipe (19).
(14) Remove the blanking plug from the suction pipe (1).
(15) Connect the suction pipe (1) to the union (2) on the inlet port of the pump (3).
(16) TORQUE the suction pipe (1) to between 10.7 and 9.7 m.daN (78.91 and 71.53 lbf.ft )

.
(17) Connect the seal drain pipe (16) on the pump (3).
(18) TORQUE the union (17) of the seal drain pipe (16) to between 1.7 and 1.5 m.daN (12.54 and 11.06 lbf.ft )

.
(19) Connect the air hose (5) to the pump (3) and install and tighten the clamp (4).
(20) Remove the blanking caps from the electrical connector (14) and the electrical receptacle of the pump (3).
(21) Make sure that all the electrical connections are clean and in the correct condition.

CAUTION: MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL CONNECTOR(S).

(22) Connect the electrical connector (14) and safety it with the lockwire, 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

Subtask 29-24-51-860-053-A

C. Preparation for the Test
(1) Do the bleeding procedure of the Yellow hydraulic system upstream of the Yellow E-pump (Ref. AMM TASK 29-00-00-870-006).
(2) Operate the flight control surfaces to bleed the Yellow hydraulic system downstream of the Yellow E-pump.
(3) Pressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(4) Energize the electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(5) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(6) On the ECAM control panel on the center pedestal, press the HYD pushbutton switch (P/BSW). Make sure that the HYD page is shown on the lower (system) display of the ECAM.
(7) Make sure that the ECAM does not show these conditions:

Low air pressure in the Yellow reservoir
Low fluid level in the Yellow reservoir.

(8) If necessary, pressurize the reservoir (Ref. AMM TASK 29-14-00-614-002).
(9) If necessary, add fluid to the reservoir (Ref. AMM TASK 12-12-29-611-001).

Subtask 29-24-51-865-052-A

D. 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
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N31
** ON A/C ALL
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03

Subtask 29-24-51-710-050-A

WARNING: DURING THE TEST OF THE ELECTRIC PUMP, DO NOT TOUCH IT. WHEN THE PUMP MOVES, YOUR FINGERS OR CLOTHES CAN BE CAUGHT BY SUCTION INTO PARTS THAT TURN AND THIS WILL CAUSE YOU INJURY.

E. Do this test:

ACTION	RESULT
1.On the overhead panel 40VU:	On the overhead panel 40VU:
Push the pushbutton switch YELLOW/ELEC PUMP and release.	The legend ON comes on. The Yellow electric pump starts.
2.On the center pedestal on the ECAM control panel:	On the lower display unit of the ECAM system:
Push the HYD pushbutton switch and release.	The HYD page is shown, the YELLOW pressure indication shows 3000 psi. NOTE: If the ECAM system is not available, you can check the pressure of 3000 +/-100 psi on the Yellow power accumulator.
3.On the overhead panel 40VU:	On the overhead panel 40VU:
Push the YELLOW/ELEC PUMP pushbutton switch and release.	The legend ON goes off. The Yellow electric pump stops.
4.Visually examine the hydraulic connections and the Yellow electric pump and make sure that there are no leaks.

5. Close-up
Subtask 29-24-51-860-051-A

A. Put the aircraft back to the serviceable condition.
(1) Remove the container from under the pump (3).
(2) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
(3) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(4) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(5) Make sure that the work area is clean and clear of tools and other items.
(6) Close the access door 196BB.
(7) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 00:27:06 UTC