_
a If you find no signs of corrosion:
_
-Install the check valve (2029GM).
b If you find signs of corrosion:
_ -Replace the check valve (2029GM).
(g)
Remove the thrust reverser check valves (3010KM1), (3010KM2) (Ref. TASK 29-11-35-000-001) and (Ref. TASK 29-13-35-000-001).
(h)
Examine the thrust reverser check valves (3010KM1), (3010KM2) for signs of corrosion.
1 If you find no signs of corrosion:
_ a Install the thrust reverser check valves (3010KM1) and
_
(3010KM2) (Ref. TASK 29-13-35-400-001).
2 If you find signs of corrosion:
_ a Replace the thrust reverser check valves (3010KM1) and
_
(3010KM2) (Ref. TASK 29-13-35-400-001).
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R **ON A/C 151-199, 301-399, 401-499,
Subtask 12-32-29-281-054-A
E. Repercussion of the Chemical Analysis
(1) If the water contamination is from 0.8% to 1.3%:
(a) Clean the hydraulic fluid of the applicable hydraulic system with the HYDRAULIC PURIFIER (HSPA181-380J) (Ref. TASK 12-36-29-615-001), (Ref. TASK 12-36-29-615-002), (Ref. TASK 12-36-29-615-003), - or reclaim the hydraulic fluid of the applicable hydraulic
system with the hydraulic ground power cart
(Ref. TASK 12-36-29-600-004),
(Ref. TASK 12-36-29-600-005),
(Ref. TASK 12-36-29-600-006),
- or change the hydraulic fluid of the applicable hydraulic system (Ref. TASK 12-36-29-600-001), (Ref. TASK 12-36-29-600-002), (Ref. TASK 12-36-29-600-003).
(b) Remove the LP/HP filter elements of the applicable hydraulic system and examine them for corroded particles (Ref. TASK 29-11-44-610-001) (Ref. TASK 29-11-45-610-001) (Ref. TASK 29-12-44-610-001) (Ref. TASK 29-12-45-610-001) (Ref. TASK 29-13-44-610-001) (Ref. TASK 29-13-45-610-001).
1 If you find no corroded particles:
_ a Install the applicable LP/HP filter elements.
_
2 If you find corroded particles:
_ a Install new HP/LP filter elements.
_
b Continue with the procedures given in step (2) (b) and
_ subsequent and step (3) (b) and subsequent.
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(2) If the water contamination is more than 1.3% and less than 2.5%:
(a)
Do the procedure given under step (1) and also:
(b)
Do the check of the internal leakage of the applicable hydraulic system (Ref. TASK 29-00-00-280-001) (Ref. TASK 29-00-00-280-002) (Ref. TASK 29-00-00-280-003).
(c)
Do the operational test of the wing tip brake and the pressure off brake (Ref. TASK 27-51-00-710-003) (Ref. TASK 27-81-00-710-002).
(d)
Remove the LP filter element of the applicable hydraulic system and examine them for corroded particles (Ref. TASK 29-11-44-610-001) (Ref. TASK 29-12-44-610-001) (Ref. TASK 29-13-44-610-001)
1 If you find no corroded particles:
_ a Install the applicable LP filter element.
_
2 If you find corroded particles:
_ a Install a new LP filter element.
_
(e)
Remove the bobbins of the HP manifold of the applicable hydraulic system (Ref. TASK 29-11-14-400-001) (Ref. TASK 29-12-14-400-001) (Ref. TASK 29-13-14-400-001) (Ref. TASK 20-23-21-911-001).
(f)
Examine the bobbins for signs of corrosion.
1 If you find no signs of corrosion:
_ a Install the bobbins.
_
2 If you find signs of corrosion:
_ a Replace the bobbins and the applicable component.
_
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(g) If you have found corroded particles or signs of corrosion: 1 Continue with the procedures given in step (3) (b) and
_
subsequent.
(3) If the water contamination is more than 2.5%:
(a)
Do the procedures given in step (1) and step (2) (b) and
subsequent and also:
(b)
Do the functional test of the ram air turbine
(Ref. TASK 29-22-00-720-003).
(c)
Do the operational test of the damping measurement of the aileron (Ref. TASK 27-96-00-710-007).
(d)
Do the operational test of the damping measurement of the
elevator
(Ref. TASK 27-96-00-710-008).
(e)
Do the operational test of the rudder hydraulic actuation
(Ref. TASK 27-24-00-710-001).
(f)
Remove the thrust reverser check valves (3010KM1), (3010KM2) (Ref. TASK 29-11-35-000-001) and (Ref. TASK 29-13-35-000-001).
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