Page 1: ...111 Purchasing Dept 1_c Yllllllallli HIGHLEAD GC1088 Series Hig Speed Sing Needle Lockstitch Industrial Sewing Machine INSTRUCTION MANUAL...
Page 2: ...nameplate OPERATION PRECAUTIONS l Keep your hands away from the needle when you turn the power switch ON or while the machine is operating 2 Do not put your fingers into the thread take up cover while...
Page 3: ...o rubber seats CD on side A operator s side using nails as illustrated above Fix two cushion seats on side B hinged side using nails Then place oil pan on the fixed seats Fig 1 Fig 2 3 Fix hinge CD in...
Page 4: ...From the Library of Superior Sewing Machine Supply LLC Fig 3 Fig 4 CD 3...
Page 5: ...u will see splashing oil through oil sight window if the lubrication is adequate 4 Note that the amount of the splashing oil is unrelated to the amount of the lubricating oi 1 Precaution When you firs...
Page 6: ...g for three minutes operating continued properly Fig 7 2 The place of conrirmcd Cf The amount of oi I cnnfi rmed pnper Hnok Hushing Rr1s1 plat The amount of Oil re servoir oil confirmed paper Fig 7 2...
Page 7: ...ig 9 The amounl of oil Max Fig 8 Adjusting the amount of oil supplied to the hook Fig 9 1 More oil is supplied as oil amount adjust screw mounted on the hook driving shaft is turned toward in directio...
Page 8: ...nt of thread and the type of material used 1 Turn the handwheel until the needle bar reaches the highest point of its stroke 2 Loosen screw and hold needle CD with its indented part A facing exactly t...
Page 9: ...open end is directed to the left as observed from you and set the bobbin into the bobbin case 2 Pass the thread through thread slit A and pull the thread in direction B By so doing the thread will pas...
Page 10: ...TITCH LENGTH Fig 13 1 Turn stitch length dial CD in the direction of the arrow and align the desired number to marker dot A on the machine arm 2 The dial calibration is in millimeters 3 When you want...
Page 11: ...ations 2 As you turn nut CD clockwise in direction A the needle thread tension will increase 3 As you turn nut CD counterclockwise indirection B the tension will decrease 2 Adjusting the bobbin thread...
Page 12: ...ressure of thread take up spring CD 1 Loosen setscrew and take out tension asm 2 Loosen setscrew and remove tension post 3 As you turn tension post clockwise in direction A the pressure will be increa...
Page 13: ...1 Loosen nut As you turn presser spring regulator CD clockwise indirection A the presser foot pressure will be increased 2 As you turn the presser spring regulator counterclockwise in direction B the...
Page 14: ...g from the throat plate align the top of the feed dog with the top of the hole on the needle and the top of the throat plate 3 To advance the feed timing in order to prevent uneven material feed move...
Page 15: ...5mm 2 If the feed dog juts out too much puckering may result when sewing light weight materials Recommended protrusion 0 7mm to 0 8mm 3 To adjust the height of the feed dog 1 Loosen screw of crank CD...
Page 16: ...of DB X 1 align marker line A on needle bar with the bottom end of needle bar lower bushing then tighten setscrew When using the needle of DAX 1 align marker line B with it then tighten setscrew 0 ___...
Page 17: ...f the clearance is too small the tip of the hook will be abraded If it is too big it will lead to skip over Note that the type of hook to be substituted for when replacing the hook shall be in conform...
Page 18: ...out by the thread take up 3 When the marker line C on the thread guide CD is aligned with the center of the screw it is standard t CD Fig 22 17 INSTALLING THE BELT COVER AND THE BOBBIN WINDER Fig 23...
Page 19: ...s about 25 kgf cm 6 Fix the cover 7 Move the back belt cover backward until its rubber touches the front belt cover then move further more 0 5 lmm fix it using the wooden screws and washers 8 Fix bobb...
Page 20: ...sser foot lifted using the knee lifter is 10mm 2 You can adjust the presser foot lift up to 13mm using knee lifter adjust screw D The max lift shoule be 9mm for GC1088 A type 3 When you have adjusted...
Page 21: ...medium weight light weight heavy weight materials materials materials Sewing speed Max 5500s p m Max 4000s p m Max 3500s p m Stitch length Max 5mm Max 4mm Max 5mm Presser foot lift 10mm standard 9mm...
