B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-23-00-864-001 Depressurize the Green and Yellow Hydraulic Systems
after Operation of the PTU 29-11-49-991-904 Fig. 401 29-11-49-991-905 Fig. 402 FOR FIN 1000EM1 71-13-00-010-040 Opening of the Fan Cowl Doors
3. Job Set-up
__________
Subtask 29-11-49-860-061
A. Aircraft Maintenance Configuration
(1)
Depressurize the Green hydraulic system (Ref. TASK 29-23-00-864-001).
(2)
Depressurize the Green hydraulic reservoir (Ref. TASK 29-14-00-614-001).
(3)
Put warning notice(s) in position to tell persons not to pressurize the Green hydraulic system: - on the ground service panel 197CB.
(4)
Put warning notice(s) on the access door 195BB to tell persons not to pressurize the Green hydraulic reservoir.
Subtask 29-11-49-941-063
B. Safety Precautions
(1)
On the center pedestal, on the ENG panel 115VU:
-put 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)
Put warning notice(s) in position to tell persons not to pressurize the Green hydraulic system:
-in the cockpit, on the HYD section of the overhead panel 40VU.
(4)
On the overhead maintenance panel 50VU:
-make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(5)
Put warning notice(s) to tell persons not to energize the FADEC 1(2).
(6)
Put a container below the suction-hose adapter connection to the hydraulic pump.
Subtask 29-11-49-865-051
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
Subtask 29-11-49-010-063
D. Get Access
R (1) Open the left fan cowl door: FOR 1000EM1 R - open the door 437AL (Ref. TASK 71-13-00-010-040).
(2) Put the access platform in position at the engine.
4. Procedure
_________
(Ref. Fig. 401/TASK 29-11-49-991-904, 402/TASK 29-11-49-991-905)
Subtask 29-11-49-020-059
A. Removal of the Hydraulic Suction Hose/Tube Assembly
(1) Disconnect the adapter assembly (60) on the suction hose/tube (25) from the hydraulic pump and let the fluid flow into the container.
NOTE : Use a second wrench to hold the union on the hydraulic pump
____ when you loosen the adapter assembly.
(2)
Disconnect the coupling half (15) on the suction hose/tube (25) from the fluid disconnect panel at the top of the engine.
(3)
Remove the bolt (5), the washer (10) and the clamp (20) that attach the suction hose/tube (25) to the top bracket.
(4)
Remove the bolts (30), the washers (10) and the clamps (35) that
attach the suction hose/tube (25) to the two channels.
(5)
Remove the bolts (30), the washers (10) and the clamp (35) that
attach the suction hose/tube (25) to the lower bracket.
(6)
Remove the bolt (40), the washer (45) and the nut (50) from the band on the center mount clamp (55).
(7)
Open the band of the center mount clamp (55) and remove the suction hose/tube (25) from the insert. Put the band on the insert and install the bolt (40), the washer (45) and the nut (50).
(8)
Remove the suction hose/tube (25) from the engine.
(9)
Remove the adapter assembly (60) from the suction hose/tube (25).
Hydraulic Suction Hose/Tube Assembly
Figure 401/TASK 29-11-49-991-904
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