-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
-lift the guard and push the MAN ON/AUTO switch in the EMER ELEC PWR section.
Subtask 29-22-00-865-120
-
the RAT extends.On the glareshields:
-
the MASTER CAUTION lights come on and you can hear a single chime.
On the HYD page of the lower ECAM DU:
-
the RAT triangle symbol changes to green when the RAT is fully extended.
On the upper ECAM DU:
-
the legends RAT FAULT and RAT OUT are shown in amber.
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU HYDRAULIC/RAT/SPLY/EXTN/SOL1 2803GE P33
Subtask 29-22-00-210-080
C. Inspection of the RAT:
(1)
Make sure that the RAT down lock is engaged.
(a)
Manually push the RAT in the retracted position.
(b)
If you push the RAT with a sudden force, the RAT can move in the retraction direction. This is permitted.
(c)
If you push the RAT with a constant force, the RAT can move in the retraction direction. This is not permitted, and you must remove the actuator (Ref. TASK 29-22-53-000-010) and (Ref. TASK 29-22-53-400-010).
(2)
Make sure that the RAT and the attachment parts are in the correct condition.
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(3)
Examine the oil level sight glass on the gear box housing (you must see oil on the sight glass). Add oil if necessary (Ref. TASK 12-13-29-600-001).
(4)
Do a check of the differential pressure indicator of the RAT filter:
(a)
Make sure that the differential pressure indicator is in.
(b)
If the the differential pressure indicator is out, replace the RAT filter element (Ref. TASK 29-22-51-000-013) and (Ref. TASK 29-22-51-400-013).
(5)
Make sure that the switch 28V DC on the RAT control panel is in the OFF position.
Subtask 29-22-00-480-055
D. Installation of the Ground Support Equipment (Ref. Fig. 509/TASK 29-22-00-991-023, 510/TASK 29-22-00-991-024, 511/TASK 29-22-00-991-030)
(1) Install the CHECK - MOTOR GROUND, RAT (AGE10600C) to the RAT as follows:
NOTE : If the CHECK - MOTOR GROUND, RAT (AGE10600C) is not available,
____ you can also use the subsequent check motors:
-AGE10600A
-Tronair AGE10600C
-Testfuchs RATMK
-Hycom HRT01.
(a)
Remove the bolts (3), the washers (2) and the cover plate (1).
(b)
Install the CHECK - MOTOR GROUND, RAT (4), the washers (2) and the bolts (3).
(c)
TORQUE the bolts (3) to between 86 and 95 lbf.in (0.97 and 1.07 m.daN).
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Installation of the RAT Ground-Check Motor and Location of the RAT Indicators
Figure 509/TASK 29-22-00-991-023
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Installation of the RAT Ground-Checkout Unit and the Flow Control Test Kit
Figure 510/TASK 29-22-00-991-024
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Installation of the RAT Flow-Control Test Kit
Figure 511/TASK 29-22-00-991-030
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(d) Connect the hydraulic hoses of the CHECK - MOTOR GROUND, RAT to a hydraulic ground-power cart (reservoir capacity min. 150 l)..
NOTE : The motor flow during the test is approximately 118 l.min
____ (31.1720 USgal.mn) +/- 8 l.min (2.1133 USgal.mn) at 206 bar (2987.7766 psi). To test the function of the RAT-governor, the motor flow will increase. Thus the capacity of the ground power cart must be 140 l.min (36.9837 USgal.mn) at 206 bar (2987.7766 psi). If the hydraulic ground-power cart has an adjustable flow control, it must be set to the max. flow during the complete test.
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