To rotate the dynamometer in a horizontal plane, loosen
the Dynamometer Rotation Knob by turning it counterclockwise. You may now
rotate the dynamometer in either direction. To secure the dynamometer rotation
position, tighten the knob in a clockwise direction and ensure that the dynamometer
teeth are engaged. Use the Dynamometer Rotation Scale, located on the base of
the dynamometer directly beneath the yoke, to note the new position