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8.Trouble shooting

Trouble

Possible causes

Remedy

Needle

breaking

Skip

stitch

Needle

thread

breaking

Bobbin

thread

breaking

Loose

stitch

Puckering

1. Needle too thin or bent.

2. Wrong set of needle.
3. Push or pull the material

with hand while sewing.

4. Too heavy the weight of

sewing material.

1. Needle bent or needle

number is not fitted the
weight of material.

2. Wrong set of needle.

1. Wrong needle threading.
2. Needle thread tension too

strong.

3. Poor thread.
4. Needle too thin or too

rough.

1. Too strong the bobbin

thread tension.

2. Thread wound on bobbin

flabbily and uneven.

3. Needle hole of throat

plate too rough or have
worn.

1. Unsuitable adjust of

needle thread tension and
bobbin thread tension .

2. Too weak the tension on

thread take-up spring.

1. Too light the weight of

material and too long the
stitch length.

2. Too strong the thread

tension on needle and
bobbin.

3. Too strong the pressure

on presser foot.

Change the needle with new
one.
Refer to the section 4.3.
Support the material gently
with hand while sewing.
Sewing according to the
technical specification

Change the needle.

Refer to the section 4.3.

Refer to the section 4.5.
Refer to the section 5.3.

Change the thread.
Change the needle.

Weaken the bobbin thread
tension.
Wind the bobbin again.

Change throat plate or
polish needle hole with
#O emery cloth.

Readjust the needle
thread tension and bobbin
thread tension.
Adjust thread take-up
spring as section 5.1.1.

Adjust suitably.

Adjust tension regulating
thumb nut, thread take-up
spring and bobbin case
tension spring screw.
Loosen pressure regulating
thumb screw.

Содержание GC6-6

Страница 1: ...GC6 6 GC6 7 Compound Feed Lockstitch Sewing Machine 3 fach Transport Doppelsteppstich N hmaschine instruction book parts catalogue...

Страница 2: ...e thread take up spring 5 2 Adjusting the thread guide 5 3 Adjusting the tension of needle thread and bobbin thread 3 1 1 Location of the machine 3 1 2 Installing drip pan 3 1 3 Mounting machine head...

Страница 3: ...eriodical cleaning 6 1 Timing between needle and rotating hook motion 6 2 Adjusting the feed dog 6 3 Adjusting the tension releasing mechaninsm 6 4 Adjusting the pressure of presser foot 6 5 Adjusting...

Страница 4: ...hes at free conditions the thicknessof material up to 8mm model DP 17 18 22 used for machine Model 6 6 GC big rotating hook with double thread capacity Model model DP 17 18 24 used for machine Model 6...

Страница 5: ...he table then drive nails into both sides of the cutout to secure the drip pan further see figure on page56 3 1 3 Mounting machine head Fig 2 Make the hinge A of machine head engaged with hinge socket...

Страница 6: ...side of balance wheel G The motor is rotation in the same direction The rotation can be reversed by reversing turn over 180 deg The plug of motor 4 Adjust the tension of V belt F by moving the motor v...

Страница 7: ...is confirmed by strict inspection and test before delivery the machine parts may be loosed or deformed after long distance transportation with jolt A thorough examination must be performed after clean...

Страница 8: ...le bar inside oil see Fig8E A long oil return felt should be installed Hook oil store is not filled with lubrication oil before leaving off the factory fill oil before use 8C 5 oilstore Presser foot l...

Страница 9: ...12 are packed with grease which should be replenished periodically as may be consumed gradually after long time of operation When replenish turn off screw plugs L K first and packed with fresh grease...

Страница 10: ...he following table is for reference Kind and number of thread Cotton thread 30 40 Linen thread 60 80 Polyester thread 20 40 linen thread 40 60 glazed thread 40 60 mercerized thread 21 60 Material to b...

Страница 11: ...n A to bobbin winder spindle B 2 Pass thread C from spool through the eye 1 on tension bracket E Pass it between tension discs 2 and then wind the end of the thread a few turns on the bobbin 3 Push st...

Страница 12: ...pass thru between two small tension discs and pass down thru the left hole of thread guide plate 1 2 To left pass down thru the right hole to left up thru middle hole and to left down thru left hole o...

Страница 13: ...ning stitch length regulating dial 1 The stitch length is longer when turning stitch length regulating dial 1counter clockwise and the stitch length is shorter when turning the dial 1 clockwise 2 Sewi...

Страница 14: ...1 Adjusting the thread take up spring tension Fig 23 Loosen tension stud set screw A turn tension stud B clockwise to increase the spring tension or turn the tension stud counter clockwise to decreas...

Страница 15: ...s as the following table a b c d e 25 Thread guide Position Material weight Heavy Medium Light Leftward Center Rightward 1 2 3 5 3 Adjusting the tension of needle thread and bobbin thread Fig 25 shows...

Страница 16: ...se the needle thread tension or turn the bobbin case tension regulating screw counter clockwise to decrease the bobbin thread tension see Fig 27 3 In case of stitches as shown in Fig 25 d e adjustment...

Страница 17: ...le bar to its highest position 2 Remove the throat plate take down the needle and the bobbin case 3 Loosen rotating hook bobbin case holder position bracket screw C and take down position bracket 4 Lo...

Страница 18: ...dard position of feed dog A is that the clearance from the throat plate slit end to the front end of the fully advanced feed dog is 1 5 mm as shown in Fig 34a 1 Fix the feed dog in the position where...

Страница 19: ...sting is repeated if necessary until the required feed style is achieved 2 Adjusting the alternate lift amount of the presser feet The lift amount of the walking presser foot is with 5 5 mm when sewin...

Страница 20: ...3 or 4 as mentioned above an inspection should be made as to raise the presser feet with presser bar lift and turn balance wheel slowly to see that the walking presser foot is to strike with other pa...

Страница 21: ...The lift amount is increased as to shorten the center distance B and the lift amount is decreased when to widen the center distance B After adjustment tighten the nut again 4 Adjusting the clearance...

Страница 22: ...ing the feed dog Fig 41 Cleaning the rotating hook Fig 42 Remove the throat plate and clean off all the dust and lint on the feed dog 7 2 Lay down the machine head and clean the hook wipe the bobbin c...

Страница 23: ...thread tension 2 Too weak the tension on thread take up spring 1 Too light the weight of material and too long the stitch length 2 Too strong the thread tension on needle and bobbin 3 Too strong the p...

Страница 24: ...Parts Manual...

Страница 25: ...1 19 20 21 22 24 18 16 11 7 9 9 2 9 29 28 30 31 32 33 34 36 38 37 14 39 40 25 23 12 18 18 17 27 26 11 12 15 10 12 13 14 46 42 43 45 44 41 47 14 48 49 50 51 5 4 6 6 3 1 35 46 9 1 Model GC6 6 Arm and Be...

Страница 26: ...1 2 1 1 2 2 1 1 1 1 4 M10 28 GB5782 86 M12 38 GB5782 86 M12 38 GB5782 86 M6 30 GB117 86 GC6 6 1 34T4 404 1 GC6 6 1 34T4 406 1 2 5 5 GB827 86 3 GB896 11 8 11 8 11 8 SM9 64 40 6 SM11 64 40 10 SM11 64 4...

Страница 27: ...21 22 24 18 16 11 7 9 9 2 9 29 28 30 31 32 33 34 36 38 37 14 39 40 25 23 12 18 18 17 27 26 11 12 15 10 12 13 14 46 42 43 45 44 41 47 14 48 49 50 51 5 4 6 6 3 1 35 46 9 2 Model GC6 7 Arm and Bed 2 3 14...

Страница 28: ...1 6 6 1 1 2 1 1 1 1 1 2 1 1 2 1 1 4 1 1 2 1 1 1 1 1 1 3 1 6 6 1 1 2 1 1 M10 28 GB5782 86 M12 38 GB5782 86 M12 38 GB5782 86 M6 30 GB117 86 34T4 404 1 34T4 406 1 2 5 5 GB827 86 3 GB896 11 8 11 8 11 8 SM...

Страница 29: ...2 5 2 5 22 20 26 24 23 25 27 28 29 14 6 7 5 4 3 19 15 16 2 1 13 9 10 11 12 31 30 32 8 8 18 17 21 3 6 Needle Bar And Thread Take up Model GC6...

Страница 30: ...ar bushing upper rubber plug Needle bar bushing lower Needle bar bushing lower set screw Needle bar bushing lower thread guard Needle bar Needle bar thread guide Needle Needle set screw Needle bar con...

Страница 31: ...2 7 2 7 20 21 22 23 14 6 7 5 4 3 19 15 16 2 1 13 9 10 11 12 8 8 18 17 4 Needle Bar And Thread Take up Model GC6 7...

Страница 32: ...ever guard screw Needle bar crank Needle bar crank set screw Thread take up crank clamping screw Thread take up crank position screw Needle bar crank position screw Needle bar Needle bar thread guide...

Страница 33: ...2 9 2 9 13 1 4 4 3 3 7 6 16 9 8 9 9 4 10 11 12 18 17 18 23 19 22 21 9 9 9 20 2 5 7 14 15 14 3 5 Arm Shaft And Vertical Shaft...

Страница 34: ...Arm shaft flanged bushing front Arm shaft bushing oil pad felt Arm shaft bushing set screw Arm shaft bushing middle Arm shaft collar Arm shaft collar set screw Arm shaft bushing rear Arm shaft bushin...

Страница 35: ...3 1 3 1 1 12 11 910 7 10 8 2 3 3 5 4 6 13 14 6 Rotating Hook And Its Shaft...

Страница 36: ...1 018J 33T1 018J3 33T1 027 33T1 028R 33T1 029 22T4 015 Hook shaft complete Collar for hook shaft Screw Rear bushing Felt Screw Front bushing Felt Hook complete Screw Bobbin Bobbin case complete Positi...

Страница 37: ...14 12 13 10 7 6 6 1 3 20 22 23 21 19 2 16 18 4 10 11 9 8 15 18 17 26 25 24 3 3 7 Stitch Length Regulating...

Страница 38: ...ngth dial Stitch length adjusting screw bar Screw Rubber plug Stop pin Spring O type ring Stitch length adjusting swing bar Set screw Hinge pin Screw Stitch length link Pin Set screw Reverse feed swin...

Страница 39: ...3 5 3 5 10 17 18 19 9 20 2 3 1 16 24 4 23 14 12 22 21 8 5 25 26 11 12 13 15 5 8 6 8 7 27 28 30 31 32 29 29 31 32 8 Bottom Feed...

Страница 40: ...mplete Fork Feed crank Screw Pin Set screw Feed shaft Front bushing Rear bushing Screw Collar for arm shaft Screw Stop ring Stop ring Front crank for feed Feed dog shaft Collar Screw Feed dog support...

Страница 41: ...3 7 9 6 Presser Bar Model GC6 12 15 14 10 9 5 4 21 22 3 24 17 2 1 16 20 19 8 27 6 7 25 18 23 11 13 26 8...

Страница 42: ...Knee lifter link hinge screw Knee lifter link Tension releasing cam hinge screw Tension releasing rod Knee lifter lever left right Knee lifter lever left right spring Knee lifter lever left right hing...

Страница 43: ...8 13 16 15 10 11 6 5 3 20 4 2 1 9 25 24 7 8 23 12 14 18 19 17 21 22 3 9 10 Presser Bar Model GC6 7...

Страница 44: ...Knee lifter lever left Tension releasing cam Knee lifter lever left screw Knee lifter link hinge screw Knee lifter link Tension releasing cam hinge screw Tension releasing rod Knee lifter lever left r...

Страница 45: ...12 8 6 7 36 35 47 37 34 32 25 24 26 28 27 26 25 24 23 27 21 22 19 18 17 19 16 15 22 38 37 41 40 44 46 45 27 43 42 39 27 48 27 51 49 48 50 52 53 15 10 39 38 20 31 30 33 29 22 5 4 3 2 1 9 4 1 11 6 Top...

Страница 46: ...resser foot guideway screw Walking presser foot Walking presser foot screw Presser foot lift regulating screw nut Presser foot lift regulating screw bushing Presser foot lift eccentric Presser foot li...

Страница 47: ...43 45 44 25 39 12 25 49 48 47 50 51 52 53 16 9 11 5 6 13 15 10 12 13 14 8 28 42 24 42 43 41 40 38 54 22 25 37 35 28 27 26 29 25 26 22 27 30 33 12 32 34 31 24 25 23 24 20 19 18 20 17 16 21 12 Top feed...

Страница 48: ...move link Small presser foot Screw Swing presser foot link No Parts No Name of parts Qty Remarks 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37...

Страница 49: ...4 5 4 5 1 2 3 4 5 11 8 6 7 12 13 9 10 13 Lubrication...

Страница 50: ...004 22T2 004 22T8 016 Oil wick fixing plate assembly Oil wick fixing plate screw Oil wick fixing hook screw Oil wick fixing hook Oil wick of fixing plate Small oil reservoir screw Small oil reservoir...

Страница 51: ...4 7 4 7 1 2 3 4 5 6 6 7 8 9 10 11 12 12 13 14 6 6 7 12 15 16 17 14 Drip Pan And Knee Lifter 12...

Страница 52: ...Knee lifter pushing rod Knee lifter pushing rod guide bushing Hexagon nut Round head wood screw Knee lifter rock shaft bracket Knee lifter rock shaft spring Knee lifter rock shaft spring pin Knee lif...

Страница 53: ...4 9 15 Accessories 1 7 3 2 11 10 9 5 6 8 15 16 17 4 14 12 13 18 6 12 13...

Страница 54: ...oof washer bock Needle Screw driver small Screw driver Screw driver big Wood screw Washer Thread winde complete Belt guard complete Screw Screw Washer No Parts No Name of parts Qty Remarks 15 Accessor...

Страница 55: ...PROVINCE CHINA TEL 86 512 63391627 63391278 FAX 86 512 63391371 POST CODE 215223 Http www typicalwpchina com E mail bzwf public1 sz js cn TYPICAL SEWING MACHINE WANPING MACHINERY CO LTD R TYPICAL SEW...

Страница 56: ...Certificate of the international CE Certificate for Ecolabelling Product Certificate for Energy Conservation Product Compound Feed Lockstitch Sewing Machine 3 fach Transport Doppelsteppstich N hmaschi...

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