WARNING : STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES.
_______ RESIDUAL PRESSURE COULD CAUSE THE DOOR TO OPEN WITH A SUDDEN FORCE AND INJURE PERSONS AND/OR DAMAGE THE AIRCRAFT.
R (1) Put an access platform in position in front of the applicable R passenger/crew door 831 or 841 or 832 or 842.
(2)
Open the passenger/crew door 831 or 841 or 832 or 842 (Ref. TASK 52-10-00-010-001).
(3)
Obey the special precautions before you start work on the door (Ref. TASK 52-10-00-860-001).
Subtask 52-10-00-865-067
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU EIS/SLIDES/ARM AND WARN/FLT 15WN P11 121VU EIS/SLIDES/ARM AND WARN/GND 13WN P10 121VU EIS/SDAC1 AND 2/DOOR/DET/PAX 48WV P05
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4. Procedure
_________ Subtask 52-10-00-614-051
A. Discharging of the Damper and Emergency Operation Cylinder
(Ref. Fig. 301/TASK 52-10-00-991-029)
WARNING : DO NOT LET HIGH PRESSURE GAS TOUCH YOUR SKIN. GAS BUBBLES IN
_______
YOUR BLOOD CAN KILL YOU.
(1)
Remove the blanking plug (1) from the filling valve (2).
(2)
Slowly loosen the nut (3) to release the pressure.
(3)
Tighten the nut (3) when the pressure gage shows the necessary pressure.
(4) Install the blanking plug (1) on the filling valve (2). Subtask 52-10-00-614-050
B. Charging of the Damper and Emergency Operation Cylinder
(Ref. Fig. 301/TASK 52-10-00-991-029)
CAUTION : DO NOT APPLY MORE THAN THE SPECIFIED TORQUE TO THE NUT OF THE
_______ FILLING VALVE. OVERTORQUE WILL CAUSE DAMAGE TO THE VALVE, AND WILL THUS CAUSE LEAKAGE OF NITROGEN FROM THE CYLINDER.
(1)
Remove the blanking plug (1) of the filling valve (2).
(2)
Connect a nitrogen filling system equipped with a pressure gauge to the filling valve (2). Use a union, dia. 0.30 inch., 32 threads per inch..
(3)
Loosen the nut (3) of the filling valve (2).
(4)
Slowly open the filling system valve. Fill to the pressure indicated on the chart for the ambient temperature.
NOTE : Make sure that the pressure is not more than the maximum
____
pressure indicated on the label.
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Filling of the Damper and Emergency Operation Cylinder of the Passenger/Crew
Doors
Figure 301/TASK 52-10-00-991-029
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(5) When the pressure is stable and correct, tighten the nut (3) of the filling valve (2).
NOTE : If the pressure is too high, loosen the nut (3) to get a leak,
____
until you get the correct pressure.
(6)
Disconnect the union, dia. 0.30 inch., 32 threads per inch. of the nitrogen filling system from the filling valve (2).
(7)
TORQUE the nut (3) to between 0.9 and 1 m.daN (79.64 and 88.49 lbf.in).
(8)
Make sure that sealing is correct at the end nut of the filling valve (Ref. TASK 52-10-00-790-001).
(9)
Install the blanking plug (1) on the filling valve (2).
5. Close-up
________ Subtask 52-10-00-865-068
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 13WN, 15WN, 48WV
Subtask 52-10-00-410-084
B. Close Access
(1)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2)
Obey the special precautions after the work on the door (Ref. TASK 52-10-00-860-002).
(3)
Close the passenger/crew door 831 or 841 or 832 or 842 (Ref. TASK 52-10-00-410-001).
(4)
Remove the access platform(s).
(5)
Make sure that the work area is clean and clear of tool(s) and other items.
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TASK 52-10-00-610-001
Replacement of the Diaphragm in the Percussion Mechanism of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
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