Brother International BAS-342E Instruction Manual - English - Page 19

5. Correct use 5-5. Replacing the bobbin case and threading the thread A CAUTION A Turn off the power switch before removing and replacing the bobbin case, otherwise the machine may operate if the foot switch is depressed by mistake and serious injury could result. 3° mm Ow) 1. Pull the shuttle race cover 0 forward and then open the cover. 2. Lift the bobbin case latch and remove the bobbin case. 3. Insert a new bobbin into the bobbin case, and then pass the thread through the slot 0 and pull it out from the thread hold 0. Check that the bobbin turns in the direction of the arrow when the thread is pulled at this time. 4. Pass the thread through the lever thread hole 0, and then pull out approximately 30 mm of thread. 5-6. Sewing conditions and thread tension 5-6-1. Sewing conditions Specifications For thick materials For medium-thick materials Upper thread #20 or equivalent #50 or equivalent Lower thread #20 or equivalent #60 or equivalent Upper thread tension 150 - 200 g 50 - 100 g Lower thread tension Thread take-up spring height 20 - 40 g 8 - 10 mm 20 - 40 g 6 - 8 mm Thread take-up spring tension 150 - 200 g 40 - 60 g Needle DP X 17 #21 DP X 5 #16 Normal sewing speed 2000 spm 2000 spm The sewing conditions given above may vary depending on the type of material being sewn. BAS-341E • 342E 12