A320飞机维护手册 AMM SERVICING 2(80)

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 -viscosity at 38 deg.C:6 to 12.5 CST
 -chlorine content:200 ppm max.
 -electrical conductivity:0.30 microSiemens.cm-1 minimum.
 (1) If the water or chlorine content of the fluid sample are equal or more than the values given above:
 -Clean the hydraulic fluid with the HYDRAULIC PURIFIER (HSPA181-380J) (Ref. TASK 12-36-29-615-001), (Ref. TASK 12-36-29-615-002) and (Ref. TASK 12-36-29-615-003),
 - or change the hydraulic fluid (Ref. TASK 12-36-29-600-001), (Ref. TASK 12-36-29-600-002) and (Ref. TASK 12-36-29-600-003).
 (2) If the acidity, density, viscosity or conductivity of the fluid sample are out of the permitted values given above:
 -Change the hydraulic fluid (Ref. TASK 12-36-29-600-001), (Ref. TASK 12-36-29-600-002) and (Ref. TASK 12-36-29-600-003).
R **ON A/C 001-049, 051-099, 101-149, 201-299,
 Subtask 12-32-29-281-054
 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.
 (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).

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 (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.
_
 (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 29-22-00-720-001).

 (c)
 Do the operational test of the damping measurement of the aileron (Ref. TASK 27-96-00-710-007).

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 (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)
 Do these work steps: (only necessary Pre SB 29-1066/Pre Modification 24880)

 1 Remove the check valve (2029GM) (Ref. TASK 29-00-00-910-003).
_
 2 Examine the check valve (2029GM) for signs of corrosion.
　
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