Navaid Devices AP-1, Руководство пользователя

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1) There is a nylon gear on the back end of the output shaft that engages another gear on
the feedback pot shaft. Loosen the set screw that secures the gear on the output shaft,
then slide it back so that it no longer engages its mating gear.
2) There is a U shaped gear engage rocker arm that the solenoid normally pulls up to
engage the gear train. Hold this down to keep to keep the gear train from engaging (it
does not hurt anything to let the crank arm hit the stop and grind, but the noise is
annoying), then turn on the autopilot. The motor will run continually.
3) Rotate the feedback pot-the motor will reverse direction at two points during a 360
degree rotation of the pot shaft. At one of the points, the motor abruptly switches from
full speed one way to full speed the other way. Find the other point, which is not really
a point but a very narrow range within which the motor can be made to a stop, or run
relatively slowly in opposite directions on either side of the stop. Turn the autopilot off
anywhere within this range.
4) Without rotating the feedback pot shaft any more than you help, re-index the gear on
the shaft so that the set screw is pointing straight up within, say, +/- 15 degrees. 5)
Point the set screw on the output shaft gear about straight up, engage the two gears,
point the crank arm where you want it, and tighten the set screw. Do not to use too
much torque tightening the set screw. You want to hold the gear firmly on the shaft,
but below, under SETTING SERVO NEUTRAL, you will need to force the gear to
rotate with respect to the shaft.
6) Turn on the autopilot. The servo should crank to a stop without moving very much.
SERVO MOTOR AND FEEDBACK POT TERMINALS
Fig. 4