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DAVID'S WEB SITE
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Date: 4-1-2016
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Number of Hours: 2.00
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Manual Reference: 15.2.B
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Brief Description: INSTALL THE DOOR HINGES
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STEPS:
1. PLACE THE TRIMMED AND FITTED DOOR INTO ITS SEAT IN THE FUSELAGE.
2. SECURE THE DOOR INTO PLACE USING TAPE, SHIMS, TONGUE DEPRESSORS, INSTANT GLUE, OR ANY COMBINATION OF THESE ITEMS.
3. MAKE RELEASES FOR THE HINGES USING THE FOLLOWING STEPS.
note: This process is important to ensure the hinges may be removed from the door and the aircraft.
4. APPLY CLEAR TAPE, WAX OR RELEASE AGENT TO THE UDERSIDE OF THE HINGES.
5. FILL THE HINGE POCKETS ON BOTH THE DOOR AND THE FUSELAGE, AND THE DEPRESSION ON THE UNDERSIDE OF THE HINGES WITH A MIXTURE OF 80% MICRO AND 20% FLOX.
6. ALIGN THEDOOR HINGES WITHIN THEIR RESPECTIVE POCKETS AND POSITION THEM SO THAT THE HINGES WILL OPERATE SMOOTHLY AND FREELY WITHOUT BINDING. PRESS THE HINGES INTO THE POCKETS.
7. SMOOTH THE FLOX LEVEL WITH THE POCKET AND REMOVE ANY EXCESS.
8. ALLOW THE FLOX TO FULLY CURE.
9. MATCH DRILL THE HINGES TO THE FUSELAGE AND THE DOOR.
10. REMOVE THE HINGES AND CLEAN THEM OF ANY CLEAR TAPE, WAX, OR RELEASE AGENT.
11. REINSTALL THE HINGES TO THE DOOR.
12. ON THE INSIDE OF THE FUSELAGE CREATE A HARDPOINT BEHIND THE HINGE POCKET USING A THICK MIXTURE OF FLOX. THE THICKNESS OF THE HARDPOINT DEPENDS ON THE SCREWS BEING USED. REFER TO FIGURE 15.2.B.3 MAIN DOOR HINGE HARDPOINT. COAT THE SCREWS WITH WAX AND INSTALL THEM WITH WASHERS (AN970-3) AND NUTS (AN365-1032A) WHILE THE FLOX IS STILL WET. TIGHTEN THE NUTS SNUG, BUT NOT TIGHT.
note: The purpose of the flox hardpoint is to reinforce the fuselage and provide an even surface for the washers to sit against.
13. ALLOW THE FLOX TO FULLY CURE.
14. ATTACH THE HINGES TO THE DOOR AND THE FUSELAGE USING SCREWS WASHERS, AND NUTS.
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