Hi Rob,

You will simply assemble the brackets to each hinge, position the brackets against the back of the header tank and as high up as possible. To immobilize the hinge while bonding the brackets in place, temporarily secure the hinges to a 2x4 laying across the longerons.

Since it was printed in the northern hemisphere, it might help to turn the copy of your supplement right side up...

Angier Ames
N4ZQ