Bernina service information

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=90 BGCOLOR="#555555" TEXT="#080000" background="96ab85a3.jpg"> <div> <FONT SIZE="5" COLOR="#FFFFFF" FACE="Arial" ><B>Sewing Educational Warehouse</B></FONT><B>    </B><B> |     </B><A HREF="index.htm" TARGET="_top" TITLE="Sewing Educational Warehouse"><B>home</B></A></div> <div>                                                   </div> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#555555" TEXT="#080000" background="96b08083.jpg"> <div> <IMG SRC="145a1740.jpg" border=0 width="161" height="116" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <bR> <bR> <bR> <div> <A HREF="sewing_machine_instruction_manuals.htm" TARGET="_top" TITLE="Sewing Machine Instruction Manuals"><B>Sewing Machine Instruction Manuals</B></A></div> <div> <A HREF="thread_stand.htm" TARGET="_top" TITLE="Thread Stand"><B>Thread Stand</B></A></div> <div> <A HREF="sewing_machine_service_manuals.htm" TARGET="_top" TITLE="Sewing Machine Service Manuals"><B>Sewing Machine Service Manuals</B></A></div> </td> <td valign="top" height=390 width="100%" BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <I>Bernina service information</I></div> <bR> <div> <B>Any material presented on this site, downloaded or in print form is intended for information purposes only. Any adjusting you do to your own sewing equipment is at your own risk.</B></div> <bR> <bR> <bR> <div> <A HREF="#timings_model_830" TITLE="Bernina service information"><B>Timings model 830</B></A></div> <div> <A HREF="#timings_1130_1230_series" TITLE="Bernina service information"><B>Timings 1130 1230 series</B></A></div> <div> <A HREF="#timing_model_170" TITLE="Bernina service information"><B>Timing model 170</B></A></div> <div> <A HREF="#timings_model_180" TITLE="Bernina service information"><B>Timing model 180</B></A></div> <bR> <div> <A HREF="#tensions_model_830_1" TITLE="Bernina service information"><B>Tensions model 830</B></A></div> <div> <A HREF="#tensions_1130_1230" TITLE="Bernina service information"><B>Tensions 1130 1230</B></A></div> <div> <A HREF="#tensions_model_180" TITLE="Bernina service information"><B>Tensions model 170 180</B></A></div> <bR> <bR> <bR> <div> <B> <A NAME="timings_model_830"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><FONT SIZE="5" COLOR="#FF0000" FACE="Arial" ><B>Timings model 830</B></FONT></div> <bR> <bR> <bR> <div> <B><IMG SRC="222a3be0.jpg" border=0 width="675" height="958" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="224a7f70.jpg" border=0 width="679" height="1015" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="226a9d60.jpg" border=0 width="681" height="982" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="228acce0.jpg" border=0 width="684" height="974" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="22ab2f00.jpg" border=0 width="690" height="1008" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="bernina_service_information_m.htm" TITLE="Bernina service information"><B>back to top</B></A></div> <bR> <bR> <bR> <bR> <bR> <div> <B> <A NAME="timings_1130_1230_series"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><FONT SIZE="5" COLOR="#FF0000" FACE="Arial" ><B>Timings 1130 1230 series</B></FONT></div> <bR> <bR> <div> <B><IMG SRC="22cbdcf0.jpg" border=0 width="701" height="975" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="22ec0cc0.jpg" border=0 width="704" height="972" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="230c1d80.jpg" border=0 width="705" height="984" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="232c7e80.jpg" border=0 width="711" height="1000" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="234c9e60.jpg" border=0 width="713" height="998" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="236ccc50.jpg" border=0 width="716" height="965" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="bernina_service_information_m.htm" TITLE="Bernina service information"><B>back to top</B></A></div> <bR> <bR> <bR> <div> <B> <A NAME="timing_model_170"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><B>Timing model 170</B></div> <bR> <div> <B>The pin length for timing pin "43" is 49.5mm. It is 5.5mm in diameter. </B><B>The other pins just require the right diameter to fit in each pinning hole.</B></div> <bR> <div> <B><IMG SRC="746c3d30.jpg" border=0 width="707" height="979" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B><IMG SRC="748c4da0.jpg" border=0 width="708" height="986" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="bernina_service_information_m.htm" TITLE="Bernina service information"><B>back to top</B></A></div> <bR> <bR> <bR> <bR> <div> <B> <A NAME="timings_model_180"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><FONT SIZE="5" COLOR="#FF0000" FACE="Arial" ><B>Timing model 180</B></FONT></div> <bR> <bR> <bR> <div> <B>The pin length for timing pin "43" is 49.5mm. It is 5.5mm in diameter. The other pins just require the right diameter to fit in each pinning hole.</B></div> <bR> <div> <B><IMG SRC="238cafc0.jpg" border=0 width="714" height="1020" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="bernina_service_information_m.htm" TITLE="Bernina service information"><B>back to top</B></A></div> <bR> <bR> <bR> <div> <B> <A NAME="tensions_model_830_1"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><B>Tensions model 830</B></div> <bR> <bR> <div> <B><IMG SRC="2c296510.jpg" border=0 width="150" height="337" ALIGN="BOTTOM" HSPACE="0" VSPACE="0">  </B><FONT SIZE="4" COLOR="#000000" FACE="Arial" ><B>To check the bobbin tension, insert a bobbin wound with medium weight thread into the bobbin case. Remove the hook from the machine. Snap the bobbin case onto the hook. Hold the hook and bobbin case by the bobbin thread and jerk the thread once or twice. The bobbin and hook should move down a bit. If the hook does not stop moving down the tension is too loose. If the hook does not move the tension is too tight.</B></FONT></div> <bR> <div> <B><IMG SRC="2c383660.jpg" border=0 width="131" height="102" ALIGN="BOTTOM" HSPACE="0" VSPACE="0">   </B><FONT SIZE="4" COLOR="#000000" FACE="Arial" ><B>If the tension is too tight, turn the screw counterclockwise ¼ turn at a time and retest. If the tension is too loose, turn the screw clockwise ¼ turn at a time and retest.</B></FONT></div> <bR> <bR> <div> <B>Continue to loosen or tighten the tension screw until the hook only moves down about ½” when you jerk the thread.</B></div> <bR> <bR> <div> <B>It is rare that you have to adjust your bobbin tension. Mainly if the tension spring was bent or for specialty sewing.</B></div> <bR> <div> <B>Top tension</B></div> <bR> <div> <B><IMG SRC="2c5abad0.jpg" border=0 width="171" height="173" ALIGN="BOTTOM" HSPACE="0" VSPACE="0">   </B><B> </B><B>The top tension is controlled with the tension dial. Normal tension is when the indicator is centered. After the bobbin tension is set the tensions should balance in the center of the fabric as shown.</B></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <B><IMG SRC="2c7f93c0.jpg" border=0 width="249" height="60" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B><IMG SRC="2c9e0c00.jpg" border=0 width="224" height="192" ALIGN="BOTTOM" HSPACE="0" VSPACE="0">    </B><B>If adjustment is required, sew a test and turn the top tension dial until the right tension is achieved. Open the top cover and locate the adjusting screw. Loosen the screw and center the indicator. Tighten the screw and recheck the adjustment.</B></div> <div> <B>Your machine will sew on most fabrics without requiring tension adjustment. If you are using heavier thread or very thick fabric you may have to increase the tension.</B></div> <bR> <div> <B>The result you should look for in tension is for the knot to be formed in the center of the fabric.</B></div> <bR> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="bernina_service_information_m.htm" TITLE="Bernina service information"><B>Back to top</B></A></div> <bR> <bR> <bR> <div> <B> <A NAME="tensions_1130_1230"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><B>Tensions 1130 1230</B></div> <bR> <bR> <div> <B><IMG SRC="2cbabcf0.jpg" border=0 width="683" height="975" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B><IMG SRC="2cdaeba0.jpg" border=0 width="686" height="954" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="bernina_service_information_m.htm" TITLE="Bernina service information"><B>Back to top</B></A></div> <bR> <bR> <bR> <div> <B> <A NAME="tensions_model_180"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><B>Tensions model 170 180</B></div> <bR> <bR> <div> <B><IMG SRC="2cfb3d00.jpg" border=0 width="691" height="976" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B><IMG SRC="2d1b2d90.jpg" border=0 width="690" height="985" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <bR> <bR> <DIV ALIGN="LEFT"></DIV> <div> <A HREF="bernina_service_information_m.htm" TITLE="Bernina service information"><B>Back to top</B></A></div> <bR> </td> </tr></table></body>