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When re-assembling, the
precise position of the co-axial
control rod , both fore-and-aft
and lateral, is critical to ensure
that there is minimum friction
between the control rod and the
stock of the servo-pendulum.
Fore-and-aft : There should be
abt. 1 mm of play fore-and-aft.
Lateral : The hole guiding the
control rod in the 1 ½ in. bushing
is offset 0.020” to correct any
mis-alignment between the axis
of the horizontal and vertical
tubes.
If, after re-assembling, you find
a hard spot when rotating the
crank in the left semi-circle,
rotate this bushing, to move the
control rod laterally until it moves
freely and there is no hard spot
and replace the screws in the
new position.
