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 RAT Interlock Proximity Switch
 Figure 409/TASK 29-22-51-991-025

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 (3)
 Mark the position of the interlock proximity switch (2) on its attachment bracket before removal. This will help you to find the correct installation position.

 (4)
 Remove the nuts (3), the interlock proximity switch (2), the shim (4), the washers (6) and the bolts (7).

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 Installation of the RAT Interlock Proximity Switch
 WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
 -
THE FLIGHT CONTROLS

 -
THE FLIGHT CONTROL SURFACES

 -
THE LANDING GEAR AND THE RELATED DOORS

 -COMPONENTS THAT MOVE.
 WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 1. Reason for the Job__________________
 Self Explanatory
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific protective caps No specific safety barriers No specific shims No specific warning notices No specific Torque Wrench : range 0.00 to 1.20 m.daN
 (0.00 to 9.00 lbf.ft)
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 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 29-22-00-710-007 Operational Test of the Manual Deployment and the
 Retraction of the Ram Air Turbine 29-22-00-820-005 Adjustment of the RAT Interlock Proximity Switch 29-22-00-869-005 Extension of the Ram Air Turbine (RAT) on the Ground 29-22-51-991-025 Fig. 409
 3. Job Set-up
__________
 Subtask 29-22-51-860-101
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration (Ref. TASK 29-00-00-864-001).

 (2)
 Make sure that the warning notices are 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 safety barriers are in position.

 (4)
 Make sure that the RAT is extended (Ref. TASK 29-22-00-869-005).

 Subtask 29-22-51-865-098
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------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
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 4. Procedure
_________
 (Ref. Fig. 409/TASK 29-22-51-991-025) Subtask 29-22-51-420-066
 A. Installation of the Interlock Proximity Switch
 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Install the interlock proximity switch (2) with the bolts (7), the washers (6), the shim (4) and the nuts (3). Refer to the marks on the attachment bracket to find the correct installation position.

 (4)
 Make sure that the value of the gap "X" between the interlock proximity switch (2) and the flag lever (1) is between 0.018 in. (0.4571 mm) and 0.020 in. (0.5079 mm).

 (5)
 If necessary adjust the gap "X" with applicable shims (4). NOTE : Shims of a different size are available.
　
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