... 3Nm 3Nm Nimble Positioning Needle up/ down positionSoft Start Presser Foot Lift Thread TrimmingThread Wiping,Back tackingOverload Protection Operation Panel ... up/Down Correction Thread Trimming, wiping, Back tacking presser foot lift control. 4)Needle Position Accuracy±1.5°. 5 ... )Thread trimming, thread wiping, back tacking, presser foot lift solenoid short circuit protection to make the power ...