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 29-11-49-991-909 Fig. 406 FOR FIN 1000EM1 71-13-00-010-040 Opening of the Fan Cowl Doors
3. Job Set-up
__________ Subtask 29-11-49-860-078
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 29-11-49-941-069
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 29-11-49-865-056
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
Subtask 29-11-49-010-069
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. 406/TASK 29-11-49-991-909)
Subtask 29-11-49-020-064
A. Removal of the Lower Case Drain Hose/Tube
(1) Disconnect the lower case drain hose (5) from the union in 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 coupling nut on the lower case drain hose.
(2)
Remove the bolt (10), the washer (15) and the nut (20) from the band of the clamp (25).
(3)
Open the band of the center mount clamp (25) and remove the lower case drain hose (5) from the insert. Put the band on the insert and install the bolt (10), the washer (15) and the nut (20).
(4)
Disconnect the lower case drain hose (5) from the hydraulic filter assembly.
(5)
Remove the lower case drain hose (5) from the engine.
(6)
Put protective covers on the hydraulic filter assembly, the union in the hydraulic pump, and the lower case drain hose (5).
Lower Case Drain Hose Assembly
Figure 406/TASK 29-11-49-991-909
1EFF : ALL 1 29-11-49 Page 438
1 1 Feb 01/98
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TASK 29-11-49-400-004
Installation of the Lower Case Drain Hose/Tube Assembly
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
WARNING : DO NOT TOUCH THE HYDRAULIC SYSTEM COMPONENTS FOR A SHORT TIME AFTER
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