CONTENT Operation Instruction 1. Brief introduction.................1 2. Main specifications................1 3. Installation...................1 4. Installing the oil box................2 5. Adjusting the tension of the belt............2 6. Installing the belt cover...............2 7. Lubrication..................3 8. Installing the needle................3 9. Threading the bobbin thread..............4 10. Installing the bobbin case..............4 11.
2. Main specifications 1. Brief introduction Machine adopts compound feed and special feeding Application Medium and heavy duty mechanism, which can ensure smooth feeding, Max. sewing speed 2000 s.p.m low noise, and beautiful stitch seam. It is constructed with slide link thread take-up, horizontal large rotating Max.
4. Installing the oil pot (Fig. 2) 1.Install the bolt ①, oil seal ② and spacer ③ onto the Oil reservoir oil reservoir, and then put the cushion ⑤ and spacer ⑧ into the set screw ④, then set it by nut ⑥. 2.Tighten the oil pot ⑦...
7. Lubrication (Fig.5) 1.Face plate lubrication a.Loosen the face plate screw; b.Open the face plate ① in the direction of the arrow; c.Lubricate the place as the arrow shows every day; d.Close the face plate; e.Tighten the screw. 2.Machine body lubrication a.Lubricate the place as the arrows indicate every day;...
9. Threading the bobbin thread (Fig.7) 1.Insert the bobbin into the hook body, pass the thread through the thread hole ①, then pass down through the thread tension spring ②. 2.Draw the thread downward, then the bobbin will turn in the direction as the figure shows. 10.
13. Threading (Fig11) ① Thread in the order as shown in Fig. ② ⑨ ③ ⑧ ④ ⑩ ⑦ ⑤ ⑥ 14. Adjusting the stitch length (Fig.12) Turn the stitch length dial plate ① leftward and rightward to make the marker align with the required figure.
16. Adjusting the thread take-up spring (Fig.14) ⑤ 1.Changing the swing range of the thread take-up spring a.Loosen the set screw ②, move the stopper ③ leftward and rightward, then adjust the thread take-up spring ①. ③ b.Move the stopper rightward to increase the swing ①...
20. Adjusting the alternating amount of presser foot (Fig.18) ① When the presser foot is alternating increasingly, adjust it upward in the range of the long hole of the top feed crank ③; when the presser foot is alternating decreasingly, adjust it downward, then tighten the nut ②.
8. Knee lifter mechanism Line Part Number Description Notes 400‐1247 Knee control lever support 400‐1248 Screw 400‐1249 Knee control lever support 400‐1250 Screw SM1/4"X40 400‐1251 Knee control connecting rod 400‐1252 Screw SM11/64"X40 400‐1250 Screw SM1/4"X40 400‐1253 Crank 400‐1254 Screw 400‐1255 Knee control revolving shaft 400‐1256 Spring 400‐1257 Position block 400‐1254 Screw 400‐1258 Screw GB/T77 M5X25 400‐1259 GB/T6172.1 M5 400‐1260 Screw SM9/64"X40 100‐1329...