Page 18Quilt Maker Pro 18 User Manual2017043. Turn off the power switch while inserting the bobbincase or anytime the hands are near the needle area.4. Do not lift the lever on bobbin case. When placing themachine fit the bobbin case onto the hook spindle inthe machine. Rotate the casing until the open throatkeys into the alignment notch in the middle of thehook. Push the casing in until it stops in place. Pushinward until it clicks (see Figure 20).Note: It is not suggested that the lever on the bobbincase be used for this installation. The latch lever shouldbe used only for removal of the bobbin case.Figure 20Drawing the Bobbin Thread to the Top ofthe Quilt1. After the machine is threaded, locate needle up/downbutton on the left handle.2. While firmly holding the tail of the needle threadwith the left hand, press the needle up/down buttonwith right hand, bringing the needle back to the upposition.3. Pull the machine three to four inches away whileholding the needle thread.4. Bobbin thread will pull up and through to the top,allowing you to grasp the loop and pull it to thedesired length.Figure 21Bobbin TensionThe bobbin tension is the foundation tension for theentire machine. To test that bobbin tension is correct,hold the bobbin case in the palm of your hand with theopen end facing up. Wrap the thread around your indexfinger and while pulling up on the thread and gentlywiggling the finger front to back (not up and downwhich is not consistent), the bobbin case should lift upon its side, but NOT lift out of your hand. If it will notlift up onto its side, it is too loose and if it lifts out ofyour hand, it is too tight. The small screw in the centerof the tension spring is where the adjustment is made(see Figure 21). Turn clockwise to tighten and counter-clockwise to loosen the bobbin case tension. Check yourbobbin tension every time a new bobbin is inserted.Note: Bobbin tension adjustment is a minute turn of thescrew like the ticking of a clock.Bobbin and Thread Tension Adjustments...cnt’d