-make sure that the door 437AL is open (Ref. TASK 71-13-00-010-040).
(2)
Make sure that the access platform is in position at the engine.
4. Procedure
_________ R (Ref. Fig. 409/TASK 29-11-49-991-911, 410/TASK 29-11-49-991-912) Subtask 29-11-49-420-066
A. Installation of the Pressure-Relief Valve Hose/Tube
(1)
Remove the protective covers from the higher pressure-relief valve hose/tube (25), the lower pressure-relief valve tube (30) and the pressure-relief valve interface.
(2)
Loosely connect the higher pressure-relief valve hose/tube (25) to
the lower pressure-relief valve tube (30).
(3)
Loosely connect the higher pressure-relief valve tube (25) to the
pressure-relief valve interface.
(4)
Attach the higher pressure-relief valve tube (25) to the engine
brackets at flange STA.199(A2). Install the bolts (5), the washers
(10), the nuts (15) and the clamps (20).
(5)
Make sure that the higher pressure-relief valve tube (25) is in the correct position on the engine.
(6)
TORQUE the coupling nuts on the higher pressure-relief valve tube
(25) to between 1.70 and 1.82 m.daN (12.53 and 13.42 lbf.ft).
NOTE : Use a second wrench to hold the lower pressure-relief valve
____ tube and the pressure-relief valve interface fitting when you TORQUE the coupling nuts.
(7)
TORQUE the nuts (15) to between 0.23 and 0.28 m.daN (20.35 and 24.77 lbf.in).
(8)
Remove the protective covers from the lower pressure-relief valve tube (30), the fitting on the top case drain hose/tube and the upper pressure-relief valve hose/tube (25).
(9)
If not done before, loosely connect the lower pressure-relief valve tube (30) to the higher pressure-relief valve hose/tube (25).
(10)
Loosely connect the lower pressure-relief valve tube (30) to the fitting on the top case drain hose/tube.
(11)
Attach the lower pressure-relief valve tube (30) to the engine bracket at flange STA.199(A2). Install the bolt (5), the washer (10), the nut (15) and the clamp (20).
(12)
Attach the lower pressure-relief valve tube (30) to the engine bracket at flange STA.185(B5). Install the bolt (5), the washer (10), the nut (15) and the clamp (20).
(13)
Make sure that the lower pressure-relief valve tube (30) is in the correct position on the engine.
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(14) If not done before TORQUE the coupling nut on the higher pressure-relief valve to between 1.70 and 1.82 m.daN (12.53 and 13.42 lbf.ft).
NOTE : Use a second wrench to hold the lower pressure-relief valve
____ tube when you TORQUE the coupling nut on the higher pressure-relief valve tube.
(15) TORQUE the coupling nut on the lower pressure-relief valve tube (30) to between 0.96 and 1.13 m.daN (84.95 and 99.99 lbf.in).
NOTE : Use a second wrench to hold the fitting on the top case drain
____ tube when you TORQUE the coupling nut on the lower pressure-relief valve tube.
(16)
TORQUE the nuts (15) to between 0.23 and 0.28 m.daN (20.35 and 24.77 lbf.in).
(17)
Remove the container. Subtask 29-11-49-710-064
B.
Operational Test
(1)
Do an operational test of the Green hydraulic system (Ref. TASK 29-11-00-710-001).
(2)
During the dry motoring of the engine 1, make sure that there are no leaks from the pressure-relief valve hose/tube.
(3)
Make sure that the level of the hydraulic fluid in the Green reservoir is correct. If necessary, fill the reservoir (Ref. TASK 12-12-29-611-001) or (Ref. TASK 12-12-29-611-002).
5. Close-up
________ Subtask 29-11-49-860-079
A. Aircraft Maintenance Configuration
(1)
Remove the access platform(s).
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
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Subtask 29-11-49-410-064
B. Close Access
(1) Close the left fan cowl door:
FOR 1000EM1
-close the door 437AL (Ref. TASK 71-13-00-410-040).
(2)
Close the door 195BB. Subtask 29-11-49-942-065
C.
Safety Precautions
(1) Remove the warning notice(s).
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TASK 29-11-49-000-007
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