HQ Sixteen™ User Manual 1.6 Page 21 Wrong type of needle Other possible problems Use needles recommended by Handi Quilter LLC. Using the wrong needle with a smallershank diameter causes many problems. For example, a system 1738 or 287WH needle with ashank diameter of 1.64mm will fit loosely into the needle bar clamp. This condition allows theneedles to fit into the clamp at an angle which may cause problems including skipped stitchesand the needle positioned too far away from the hook point.• Needle too close to hook, causing friction and possible collision of hook point and needle(broken thread).• Needle plate damage• Hook damage• Broken needles or damaged needle bar clampMotor Stall Corrective Measure Motor Stall The alarm indicates the motor is not responding properly to the speed controls. This may becaused by a thread lock, mechanical obstruction or an electrical problem. Clear any thread from the bobbin area ONLY after turning off the power to the machine. Turn the handwheel and check for tightness. The motor stall may re-occur if it is caused by an electrical problem. Turn the machine off andthen back on again to reset the computer* If the troubleshooting above does not eliminate the problem, please consult an authorized HQ Sixteen™ representative.