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typical GC6760 SERIES, Setup, Instruction & Service Manual

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typical GC6760 SERIES Setup, Instruction & Service Manual Download Page 14

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TYPICAL GC6760 Series

4 // INSTALLATION

4/6/4 Rubber cushion and knee lever rod

(1)  Rubber cushion (2x)

(2)  Nägel (4 Stück)

(3) Kniehebelstange

4/6/5 Machine head

(1)   Hinges (2 x)

(2)   Machine head

(3)   Sewing head support

Make sure that the sewing head support is 

absolute secure positioned. 

Otherwise the machine is instable when tilted back.

4/6/6 Sticker

(1)  Re-move sticker

Summary of Contents for GC6760 SERIES

Page 1: ...SETUP INSTRUCTION SERVICE MANUAL GC6760SERIES DOUBLE LOCKSTITCH HIGH SPEED SEAMER WITH DIRECT DRIVE WITH BOTTOM AND NEEDLE FEED...

Page 2: ...2 TYPICAL GC6760 Series...

Page 3: ...moving parts like the needle or the take up lever A risk of injury can occur from this parts So make sure that you are familiar with the machine and listen to the orders of the instructor for a save a...

Page 4: ...upper thread tension 25 7 3 Adjusting the foot pressure 26 7 4 Adjusting the thread length at the needle after thread cutting 26 8 CLEANING MAINTENANCE 27 8 1 Daily cleaning and maintenance 28 8 1 1...

Page 5: ...afety Instructions The connecting cable must be equipped with a country specific connecting plug This must be done by an electrician 1 2 Notice to the owner This manual must be at all times be availab...

Page 6: ...A triangle always means Danger The picture inside the triangle shows the kind of danger that can occur Injury is possible when ignored This sign indicates that you are not allowed to do something Thi...

Page 7: ...ger guard B Take up lever guard 1 5 Warning signs on the machine 1 SAFETY 1 Caution Moving parts can cause injuries Please follow the safety precautions Push the main switch before you thread the mach...

Page 8: ...760 HD3 Max foot lift 16 mm with knee lever Floating foot fine adjustment for better sewing quality Adjustable take up lever 58 62 mm for better sewing results on different material AUTOMATIC CLOSED L...

Page 9: ...N PARTS 1 Bobbin winder 2 Thread wiper 3 Lifting lever 4 Back tack button 5 Sewing foot 6 Control circuit 7 Knee lever 8 Main switch 9 Oil sight window 10 Revers lever 11 Stitch length regulator 12 Ha...

Page 10: ...ight of the machine is 46 kg The installation should be taken out by two persons Caution Connect the machine to the electricity when finished installing the machine Injury may occur by accidental star...

Page 11: ...rwise it can cause problems Transport the machine with appropriate hoist The table top should have a strength of 40 mm to hold the weight of the machine and stand the vibration of the machine Remove t...

Page 12: ...0 Series 4 INSTALLATION The table top should have a strength of 40 mm to hold the weight of the machine and stand the vibration of the machine Drill the required holes like shown in the drawing 4 5 Ta...

Page 13: ...Control 2 Screws 3x 3 Nuts 3x 4 Spring washer 3x 5 Washer 3 x 6 Connecting rod 7 Nut 4 6 1 Control and connecting rod 4 6 Setup 4 6 2 Main on off switch 1 Main on off switch 2 Screws 2x 4 6 3 Oil pan...

Page 14: ...e lever rod 1 Rubber cushion 2x 2 N gel 4 St ck 3 Kniehebelstange 4 6 5 Machine head 1 Hinges 2 x 2 Machine head 3 Sewing head support Make sure that the sewing head support is absolute secure positio...

Page 15: ...15 1 2 3 4 TYPICAL GC6760 Series 4 INSTALLATION 4 6 7 Thread stand 1 Thread stand Tighten the nut 4 to secure both rubber rings 2 and washer 3 The thread stand must sit firm and shouldn t move...

Page 16: ...clearance between the stop screw 10 and the lever 11 of approxi mately 8 mm 9 Turn the stop screw 10 until the sewing foot is in the desired position The clearance for the sewing foot is approximatel...

Page 17: ...Replace rubber plug 1 3 Check oil level on the gauge 4 it must be on the upper mark of the gauge 4 Oil must be refilled when the oil level 4 has dropped to the lower mark 4 7 Lubrication Caution The...

Page 18: ...en the foot pedal 1 is released Position A the machine must stop with the needle in the lower position 5 The foot will be lifted by lightly touching the pedal 1 in direction D optional extra 6 Pushing...

Page 19: ...s in the highest position 2 Loosen needle set screw 1 3 Push the needle 2 straight up to the top Make sure that the long groove shows to the left side 4 Tighten needle set screw 1 5 1 Inserting needle...

Page 20: ...fting lever 6 To start the winding press the fool pedal 7 The bobbin winder lever 3 will release automatically when winding is finished 8 After finishing the bobbin winding remove bobbin and cut the t...

Page 21: ...in the bobbin case that it turns clockwise when you pull the thread Illustration 2 3 Pull the thread in the slot 1 under the tension spring 2 and through the tread guide 3 Illustration 2 4 Check if t...

Page 22: ...material the stitch length can vary First sew a view stitches and adjust accordingly The adjusting knob can be turn more easily when changing from a long to a shorter stitch length when you push the...

Page 23: ...are missing Caution If the machine starts accidently by touching the foot pedal injury may occur For this reason switch off machine before you commence with the following works Threading the machine C...

Page 24: ...n screw 1 again The stitch length will be 2 Illustration at the bottom of the page 3 If a shorter stitch condensing is required move the stop further down 4 If a longer stitch condensing is required m...

Page 25: ...ter setting the lower thread tension to get an even stitch 1 Lower the sewing foot 2 Regulate the upper thread tension by turning the tension dial 2 Turn clockwise for a tighter tension or anticlockwi...

Page 26: ...foot Turn the screw 2 clockwise to tighten or anticlockwise to loosen the pressure 3 Tighten lock nut 1 after adjustment 7 4 Setting the thread end length from the needle after cutting The upper tens...

Page 27: ...loves when you work with lubricating oil and grease to avoid contact with the eyes and skin that may cause inflammations Under no circumstances eat or drink lubricating oil or grease Keep out of reach...

Page 28: ...obbin case 4 7 Remove bobbin from bobbin case 4 and clean bobbin case with a lint free cloth 8 Dust the hook 5 with a soft cloth and check if the hook 5 is in a good working order 9 Put bobbin back in...

Page 29: ...e backwards The oil level reading on the oil sight window 1 can vary de pending on the angle of the tilted machine Make sure that the sewing head support 2 is installed in the right position The corre...

Page 30: ...at Never fill in too much oil at one time otherwise it can spill out 3 Replace rubber plug 2 to the opening 4 Bring sewing head back in the upright position The rubber plug has a small opening to regu...

Page 31: ...9 10 11 12 13 4 TYPICAL GC6760 Series 8 CLEANING AND MAINTENANCE 8 1 5 Checking needle and thread 1 Check if the needle is bend or the point is broken off Replace if necessary 2 Check the upper treadi...

Page 32: ...which are marked with arrows 3 Grease the marked spots until grease is coming out slightly 4 Tighten screws and set screws to push the grease into the openings 5 Turn the hand wheel a few times in ord...

Page 33: ...can also use a normal sheet of paper instead of the oil check paper Let the machine run at normal speed for 8 seconds 5 Check the amount of oil sprayed on the paper Too much Correct Too little Spraye...

Page 34: ...ewing head with both hands when you tilt the machine backwards or bring back in original position Because of the weight of the machine it can slip when you hold it with only one hand and your hand mig...

Page 35: ...er than shown below The distance between machine head and table top cut out is standardly 1 5 mm If the distance is 3 5 mm or more install with the help of a washer 2 between the machine and the switc...

Page 36: ...The pre set strength of the take up spring 4 varies depending on the version of the machine M 0 25 to 0 35 N H 0 30 to 0 5 N 5 Hold the upper thread above the tension knob tight and pull with the thre...

Page 37: ...the presser foot height When you lift the presser foot 1 with the help of the hand lever 2 it should be 6 mm high 1 Loosen the nut 3 on the adjusting screw 4 Turn the adjusting screws until there is...

Page 38: ...feed dog 1 to the highest position 2 Tilt the machine with both hands backwards 3 Loosen screw 2 4 Set the feed lifting eccentric 3 with the notch on the line 4 5 Tighten screw 2 afterwards Turn the f...

Page 39: ...hands backwards 3 Loosen both set screws 4 4 Turn the eccentric 2 until the notch is on the marking 5 Tighten both screws 4 If the feed dog is lowered in front it will stretch the material slightly I...

Page 40: ...e the presser foot 3 needle plate 4 and feed dog 5 2 Bring the needle bar in the lowermost position by turning the hand wheel 3 Remove the rubber plug 6 on the front plate 4 Loosen screw 7 5 Set the g...

Page 41: ...the needle plate Illustration A and B The standard setting is when the marking on the drive shaft is opposite the punch mark o and the line 4 see Illustration C 1 Adjust stitch length to maximum sett...

Page 42: ...own in illustration 1 in line with the line D on the upper edge of the gauge when you use a gauge 2 1 Remove presser foot 5 needle plate 6 and feed dog 7 2 Set stitch length as follows M Stitch length...

Page 43: ...ntil a distance of 3 mm between roller and shaft is achieved Make sure that the roller lever and shaft are under spring pressure 2 Tighten screw 3 in this position The cam 1 must have a distance of 0...

Page 44: ...point and the point of the needle is in line with the needle plate Move the lever A Illustration 2 to the left to initiate cutting operation Secure lever in this position 2 Turn hand wheel until the...

Page 45: ...ng point and the point of the needle is in line with the needle plate Move the lever A Illustration 2 to the left to initiate cutting operation Secure lever in this position 3 Turn hand wheel until th...

Page 46: ...le is in line with the needle plate Move the lever A Illustration 2 to the left to initiate cutting operation Secure lever in this position 2 Loosen the counter nuts 2 Illustration 1 and turn until a...

Page 47: ...arm D Transmission shaft for the pedal Adjustment Result 1 Forward run Move spring A to the right Power decrease Power setting Move spring A to the left Power increase 2 Revers run Turn Bolt B to for...

Page 48: ...rious materials 1 Move the feed dog 2 below the needle plate 3 by turning the hand wheel 2 Lower the presser foot 1 onto the needle plate 3 3 Loosen the nut 4 4 Set the required floating height with t...

Page 49: ...be because the lower tension is to loose or the upper tension is to tight Check the lower and upper thread tension and readjust if necessary See point 7 1 and point 7 2 in this manual 11 3 Loops appe...

Page 50: ...if the thread end from the bobbin is long enough after cutting When the bobbin is spinning in the bobbin case replace brake spring 6 Check if the needle is to heavy for your material Replace with a t...

Page 51: ...7 Puckered seam A puckered seam can have various reasons 1 Check if the upper thread tension is to tight 2 Check if the lower thread tension is to tight 3 Check if the tension on the take up spring i...

Page 52: ...Upper and lower thread breakage can have various reasons 1 Check if the needle is bend or the point of the needle is damaged 2 Check if the needle is put in the right way 3 Check if the machine is thr...

Page 53: ...e needle is inserted properly 2 Check that the material is not pushed or pulled when sewing 3 Check if the needle is bend or the point of the needle is damaged Maybe the eye of the needle is blocked R...

Page 54: ...ong cable lower the voltage as well when there are to many machines are in use at the same time on one plug This can activate the reset function so the machine stops even so the power supply seams nor...

Page 55: ...plastic material and copper The local environmental protection regulations must be observed when the machine is disposed A special disposal company must be possibly used Caution Parts with lubricant...

Page 56: ...ww typical europe com XI AN TYPICAL INDUSTRIES CO LTD No 335 South Taibai Road Xi an 710068 P R China Tel 86 29 88279093 88279150 88279151 Fax 86 29 88249715 88245215 E mail tic chinatypical com www c...

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