Starboard Elevation [hinge side] Note: 1100 mm refer latest manual |
Trail assembled both hinges - One off the hinge sets supplied had a slight misalignment from the factory welding but was corrected using an torch to heat the lug and then pressing the pin into both hinge points to align both lugs using a vice. When cool the pin was removed and a hand reamer run through from both side's.
Note: The side skin must be fitted at this time with clecos. No allowance for the interior skins is required as these are notched to fit around the hinges
Rear Hinge Top hole drilled first |
Front Hinge Top hole drilled first |
Once aligned correctly the hinges were then fixed with 4 mm aluminium pop rivets. Only fit the top rivet when removal of the side panels is NO longer required.
Note: There should be no 1/8''pop rivets under the hinge mounting face on the top side of the longeron.
This builder elected to install a pop rivet into the top side of the hinge at the redundant hole. These were drilled 1/8'' and proved useful to hold the hinges in position for drilling described.
It was not advisable to drill all four holes then pop rivet. Drilled one hole at the top edge and fitted a cleco, checking the alignment before drilling the next hole, then pop rivet both.
Repeated for the remaining two holes.
Drilling Top Holes:
Draw a line between two rivets ensuring that the line intersect with hole to be reused located under hinge in photo below
Mark edge of hinge as shown and slide hinge back - measure distance from mark to hole center line - in the case below the hinge was move forward slightly to place the new hole on the center-line of the flange
Once you are happy with the location drill a new hole in the hinge flange 1/8'' through - if correct the two will line up holding the hinge in its correct location.
Note: To ensure greater accuracy the pilot hole was drilled with a center drill BEFORE drilling to final size.
Use a fine line felt tip pen making sure it intersects with the hole center - critical.
DO NOT RIVET THIS HOLE IT IS THE LAST OPERATION AFTER INSTALLATION OF THE INTERIOR SKINS
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