HOSE - RESERVOIR PRESSURIZATION, LEFT ENGINE BLEED (1674GM)
___________________________________________________________ REMOVAL/INSTALLATION
____________________
TASK 29-14-49-000-001
Removal of the Reservoir Pressurization Hose (1674GM)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific blanking plugs
No specific warning notice(s)
No specific access platform 1.5 m (4 ft. 11 in.)
B. Referenced Information
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REFERENCE DESIGNATION
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29-10-00-864-003 Depressurize the Blue Hydraulic System 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
29-24-00-864-001 Depressurize the Yellow Hydraulic System
71-13-00-010-040 Opening of the Fan Cowl Doors
R 78-36-00-010-040 Opening of the Thrust Reverser Doors 29-14-49-991-001 Fig. 401
3. Job Set-up
__________
Subtask 29-14-49-860-050
A. Aircraft Maintenance Configuration
(1)
Depressurize the aircraft hydraulic systems (Ref. TASK 29-23-00-864-001), (Ref. TASK 29-24-00-864-001) and (Ref. TASK 29-10-00-864-003).
(2)
Depressurize the hydraulic reservoir (Ref. TASK 29-14-00-614-001).
(3)
Put warning notice(s) in position to tell persons not to pressurize the hydraulic system: - on the ground service panel 198CB.
(4)
Put warning notice(s) on the access door 195BB to tell persons not to pressurize the hydraulic reservoir.
Subtask 29-14-49-941-050
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 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 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). Subtask 29-14-49-010-050-A
C.
Get Access
(1) Open the left fan-cowl door 437AL (Ref. TASK 71-13-00-010-040). R (2) Open the thrust reverser door 451AL (Ref. TASK 78-36-00-010-040).
(3) Put an access platform in position at the engine 1.
4. Procedure
_________ (Ref. Fig. 401/TASK 29-14-49-991-001) Subtask 29-14-49-020-050
A. Removal of the Reservoir Pressurization Hose CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
(1)
Loosen the nuts (2) and disconnect the reservoir pressurization hose (4).
(2)
Put blanking plugs on the disconnected line ends.
Reservoir Pressurization Hose
Figure 401/TASK 29-14-49-991-001
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TASK 29-14-49-400-001
Installation of the Reservoir Pressurization Hose (1674GM)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific warning notice(s)
No specific access platform 1.5 m (4 ft. 11 in.)
No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft)
B. Consumable Materials
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