_______ CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE.
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(a)
Operate the sidestick and the rudder pedals to put the control surfaces associated with the Green hydraulic system to the 0 deg. position (spoilers retracted).
(b)
Keep all of the control surfaces stopped in the 0 deg. (retracted) position during the measurement of the internal leakage.
NOTE : Do the checks of the internal leakage with the hydraulic
____ fluid at its usual working temperature of between 20 deg.C
(68.00 deg.F) and 60 deg.C (140.00 deg.F).
4. Procedure
_________
Subtask 29-00-00-280-050
A. Check of the Internal Leakage of the Green Hydraulic System
(1) Measurement of the Green system (complete) internal leakage
(a)
On the overhead maintenance panel 50VU, make sure that the HYD/LEAK MEASUREMENT VALVES/G P/BSW is set to on (OFF light not on).
(b)
On the overhead panel 40VU, make sure that the PTU P/BSW is set to OFF (the OFF light is on).
(c)
Monitor the flow shown on the ground supply flowmeter. It must not be more than 9 l.min (2.3775 USgal.mn).
(d)
If the internal leakage is too much, do the checks of sections of the system to find the cause.
(2) Measurement of the Green system (central section) internal leakage R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
(Ref. Fig. 601/TASK 29-00-00-991-001) R **ON A/C 401-499,
R (Ref. Fig. 601A/TASK 29-00-00-991-001-A)
Green Hydraulic System - Central Section
Figure 601/TASK 29-00-00-991-001
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R Green Hydraulic System - Central Section
R Figure 601A/TASK 29-00-00-991-001-A
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R **ON A/C ALL
(a) On the ECAM control panel on the center pedestal, push the HYD P/B. Make sure that the lower DU shows the HYD page.
(b) On the overhead maintenance panel 50VU, lift the guard and set the HYD/LEAK MEASUREMENT VALVES/G P/BSW to off (OFF light comes on).
(c) On the overhead panel 40VU, make sure that the PTU P/BSW is set to OFF (the OFF light is on).
(d) Refer to the lower DU to make sure that the solenoid valve operation is correct (the color of the flow arrow and system name of the Green system is amber).
(e) In the main gear compartment, make sure that the three valves on the leakage measurement selector-valve are set to OFF.
(f) Monitor the flow shown on the ground supply flowmeter. It must not be more than 0.4 l.min (0.1056 USgal.mn).
(3) Measurement of the Green system (rear section) internal leakage
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
(Ref. Fig. 602/TASK 29-00-00-991-002)
R **ON A/C 401-499,
R (Ref. Fig. 602A/TASK 29-00-00-991-002-A)
R **ON A/C ALL
(a) On the overhead maintenance panel 50VU, make sure that the HYD/LEAK MEASUREMENT VALVES/G P/BSW is set to off (OFF light is on).
(b) On the overhead panel 40VU, make sure that the PTU P/BSW is set to OFF (the OFF light is on).
(c) In the main gear compartment turn the REAR manual selector valve to the ON position.
Green Hydraulic System - Rear Section
Figure 602/TASK 29-00-00-991-002
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R Green Hydraulic System - Rear Section
R Figure 602A/TASK 29-00-00-991-002-A
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(d) Monitor the flow shown on the ground supply flowmeter. It must not be more than 6.0 l.min (1.5850 USgal.mn).
(e) In the main gear compartment, turn the REAR manual selector valve to the OFF position.
(4) Measurement of the Green system (left wing section) internal leakage
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
(Ref. Fig. 603/TASK 29-00-00-991-003)
R **ON A/C 401-499,
R (Ref. Fig. 603A/TASK 29-00-00-991-003-A)
R **ON A/C ALL
(a) On the overhead maintenance panel 50VU, make sure that the HYD/LEAK MEASUREMENT VALVES/G P/BSW is set to off (OFF light is on).
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