(2)
Open the access door 197EB.
(3)
Open the access door 195BB.
Subtask 29-22-51-860-111
B. Aircraft Maintenance Configuration
(1)
Put the safety barriers in position.
(2)
Put the warning notice(s) in position to tell persons not to pressurize the Blue hydraulic system:
-In the cockpit on the hydraulic section 40VU of the overhead panel,
-On the ground service panel of the Blue hydraulic system.
(3)
Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
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(4)
Extend the RAT (Ref. TASK 29-22-00-869-005). Subtask 29-22-51-865-106
C.
Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU HYD/RAT/CTL 2801GE D14 106VU CSM/G /EV/MAN/SPLY 6XE B04 121VU HYDRAULIC/RAT/SPLY/EXTN/SOL1 2803GE P33
4. Procedure
_________
(Ref. Fig. 602/TASK 29-22-51-991-028) Subtask 29-22-51-210-076
A. Detailed Visual Inspection of the RAT and the Doors in the Deployed
Position
(1)
Make sure that the door links are correctly attached to the leg assembly and to the RAT doors.
(2)
Examine the RAT doors for cracks, corrosion and any other damage.
(3)
Make sure that the RAT and its related components are correctly attached.
(4)
Make sure that all the lockwire and the cotter pins are in the correct condition.
(5)
Examine the RAT and its related components for cracks, corrosion and any other damage.
(6)
Turn the turbine blades manually and make sure that they turn freely.
(7)
Make sure that the clearance "H" between the turbine blade tip and the outboard RAT door edge (not door seal) is between 40.0 mm (1.5748 in.) and 48.0 mm (1.8897 in.).
(8)
Make sure that the clearance "G" between the turbine blade tip and the inboard RAT door edge (not door seal) is between 31.0 mm (1.2204 in.) and 37.0 mm (1.4566 in.).
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Ram Air Turbine - Clearances
Figure 602/TASK 29-22-51-991-028
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B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 2801GE, 2803GE, 6XE
R **ON A/C 062-099, 106-149, 151-199, 204-299, 401-499,
Subtask 29-22-51-280-051
C. Special Inspection of the RAT
(1)
Pressurize the Blue hydraulic system (Ref. TASK 29-10-00-863-003).
(2)
Make sure that the hydraulic connections of the RAT and its related components do not leak.
(3)
Make sure that the filter indicator of the RAT has not popped out.
(4)
Do the draining of the RAT oil drain tank (Ref. TASK 29-22-51-680-003).
(5)
Retract the RAT (Ref. TASK 29-22-00-869-006).
(6)
Depressurize the Blue hydraulic system (Ref. TASK 29-10-00-864-003).
(7)
Make sure that the clearance "F" between the highest point of the RAT hub (1) and the forward outboard attachment bracket (2) of the RAT box is not less than 14 mm (0.5511 in.).
NOTE : If the clearance is less than 14 mm (0.5511 in.) adjust the
____ length of the RAT actuator (Ref. TASK 29-22-00-820-004).
**ON A/C 301-399,
Subtask 29-22-51-280-051-A
C. Special Inspection of the RAT
(1)
Pressurize the Blue hydraulic system (Ref. TASK 29-10-00-863-003).
(2)
Make sure that the hydraulic connections of the RAT and its related components do not leak.
(3)
Make sure that the filter indicator of the RAT has not popped out.
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(4)
Do the draining of the RAT oil drain tank (Ref. TASK 29-22-51-680-003).
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