Set Type: Professional setHigh-concerned chemical: NoneMaterial: MetalModel Number: External positionerOrigin: Mainland ChinaFeatures:1: Pair your industrial sewing machine with a synchronizer to precisely control your sewing operation.2: stop up or down positioner, synchronizer for brushless motors of industrial sewing machines.4: Only suitable for industrial sewing machines with handwheel fixed or screwed to the spindle. Not suitable for allPart name: External positionerPositioning sensor installation steps1. Remove the fixing screws at the end of the machine head pulley shaft.2. Fix the accessory "connector" to the shaft end with the "connector screw".3. Install the external sensor and tighten the two set screws to fix the positioning rod in the slot of the sensor.4. Insert the sensor signal line into the sensor socket of the motor.5. Start the motor and detect the stop position. If there is any deviation, first loosen the two set screws on thesensor, then turn the pulley (do not let the sensor rotate) to foralignthe position, and then tighten the twoscrews.Package Contents:1 x Holder2 x Wrench1 Set of Matching AccessoriesNote:Light and different monitors may cause the color of the items in the picture to be slightly different from the actual itemThe allowable measurement error is +/- 1-3 cm.Color: As ShownMaterial: Metal+PlasticOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.