Related Manuals for HIGHLEAD GC20688-BDCE Series
Summary of Contents for HIGHLEAD GC20688-BDCE Series
- Page 1 GC20688-BDCE Serie Compound-Feed,Heavy Material Lockstitch Sewing Machine Instruction Manual Parts Catalog SHANGHAI BIAOZHUN HAILING SEWING MACHINERY CO., LTD. From the library of: Superior Sewing Machine & Supply LLC...
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Page 2: Table Of Contents
----- CONTENTS ----- 1. PRECAUTIONS BEFORE STARTING OPERATION···············································································1 Safety precautions ····································································································································1 Precaution before Starting Operation ····································································································1 Precaution for Operating Conditions·····································································································1 2. SPECIFICATIONS ·········································································································································1 3. PREPARATION BEFORE STARTING TO OPERATE ·············································································2 Connection of control box ·······················································································································2 Oil pan·······················································································································································3 Operation panel········································································································································3 Adjusting the needle stop position··········································································································3 Lubrication ···············································································································································4 4. - Page 3 Adjusting the presser foot timing ·········································································································14 Adjusting the fixed knife position·········································································································15 Adjusting the thread holding spring position ······················································································15 Adjusting the knife timing position ······································································································15 Adjusting the driving knife height········································································································15 Adjusting the driving knife stop position·····························································································16 Adjusting the driving knife operating position ···················································································16 Adjusting the thread trimming timing·································································································17 Safety clutch ···········································································································································17 Regulate the atmospheric pressure...
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Page 4: Precautions Before Starting Operation
PRECAUTIONS BEFORE STARTING OPERATION Safety precautions (1) When turning the power on, keep your hands and fingers away from the area around/under the needle and the area around the pulley. (2) Power must be turned off when the machine is not used, or when the operator leaves his/her seat. (3) The power must be turned off before tilting the machine head, installing or adjusting the machine, or when replacing. -
Page 5: Preparation Before Starting To Operate
3. PREPARATION BEFORE STARTING TO OPERATE 1) Connection of control box It shows the connection of the electrical wires of the whole machine on the right picture. When the machine needs to be assembled, each line should be linked to the right joint according to the instruction of the picture. -
Page 6: Oil Pan
2) Oil p an (1) Install the oil pan 3 to the underside of the worktable 1 in the place shown in the illustration using the nails 2. (2) From front view, the oil pan 3 to the side is 60mm;... -
Page 7: Lubrication
c. When the red mark stops in a position over the mark on the belt cover, the needle up stop position disc 1 should be turned in the opposite direction as the direction of machine pulley rotation. When the red mark stops in a position under the mark on the belt cover, Turn the disc 1 in the same direction as the pulley rotation direction. -
Page 8: How To Use The Machine
HOW TO USE THE MACHINE 1) Threading Raise the thread take-up lever to its highest position and thread the upper thread in the following order. 2) Adjusting of the thread regulator The thread regulator 9 (see the right picture) regulates the amount of needle thread necessary for stitch formation. -
Page 9: Threading The Lower Thread
5) Threading the lower thread (1) Raise flap 1 and remove the empty bobbin. (2) Insert bobbin 2 in such a way that when the thread is unwound from it moves in the opposite direction to the gripper. (3) Pass the thread through slit 3 and below spring 6, pass the thread through slit 4 and pull about 3 cm through. -
Page 10: Alternating Presser Foot Movement Amount
8) Alternating presser foot movement amount The alternating movement amount for the inner presser foot and the outer presser foot can be adjusted within the range of 1-7 mm using the alternating presser foot movement dial 1. Turn the alternating presser foot movement dial 1 clockwise or counterclockwise to align the mark. -
Page 11: Lubrication
13) Lubrication (1) Check the oil level at the sight glass 1 every week. If the oil is not enough, remove oil-filling screw 2 and pour in oil. Check oil level at sight glass 2. The oil level must be between “EMPTY” and “FULL”. -
Page 12: Adjusting The Trailing Length After Thread Trimming
b. When the oil satchel is changed, the flock side should be faced to connecting plate 10. The oil wick 7 and 8 should be set between the oil satchel 9 and plate 8. (4) Checking the lubrication oil. Turn on the power switch. Depress the treadle gently and check that the oil level rises in the oil sight glass. 14) Adjusting the trailing length after thread trimming Adjust by turning the pre-tensioner 1. -
Page 13: Adjusting The Needle Bar Height
17) Adjusting the needle bar height Set the feed adjustment dials to the minimum settings. Then adjust so that the distance from the setting surface of the needle plate 2 to the end of the needle bar 1 is 18.5mm when the needle bar 1 is at its lowest position. -
Page 14: Hook Protection
(3) Overturn the arm. (4) Loosen the screw 1 (5) Turn the machine pulley to raise the needle bar from its low position to the point that the needle rises 2.4 (6) Turn the rotary hook to align the rotary hook tip with the center of the needle. -
Page 15: Adjusting The Opener Position
e. Turn the lower feed cam 3 gradually until it is at the position where the needle and the feed dog do not move even when the reverse lever is moved up and down. f. Tighten the two screws 2. (2) Vertical feed direction Set the feed adjustment dials to the minimum settings. -
Page 16: Adjusting The Alternating Presser Foot Movement Amount
(2) Loosen the presser adjusting screw, to release the presser foot pressure. (3) Raise the presser lifters bar 1 and then loosen the screw 2. (4) Move the outer presser bar up or down to adjust so that the height of the outer presser foot 7 is 9 mm. (5) While the stopper pin 6 is touching against the notch B in the presser foot lifter connection 5 and while pushing the presser lifter shaft so that there is no play in the thrust direction, tighten the screw 2. -
Page 17: Adjusting The Presser Foot Timing
adjust so that the distance from the outer edge of the arm to the outer edge of the pin 7 is 78 mm at this time. Then tighten the bolt 6. (When installing the upper plate, set the alternating presser foot movements dial to the “min.”... -
Page 18: Adjusting The Fixed Knife Position
(2) Loosen the two screws 1. (3) Turn the machine pulley until the needle tip and the feed dog’s up face is the same plane. (4) Turn inner presser cam to adjust so that the point of inner presser cam is facing straight up. (5) Tighten the screws 2. -
Page 19: Adjusting The Driving Knife Stop Position
hook should be 0.3-0.4mm. (1) Loosen the two screws 2 and 5. (2) Move the driving knife shaft 6 up or down to adjust the position of the driving knife 1. (6) Tighten the screws 2 and 5 on the setting collars again. 30) Adjusting the driving knife stop position The distance from the blade of the fixed knife 2 to the end of the driving knife 1 should be 0.5 mm when the driving knife 1 has moved as far as possible toward the fixed knife 2. -
Page 20: Adjusting The Thread Trimming Timing
(1) Overturn the arm. (2) Loosen the bolt 3 (3) Turn the plunger 2 of the thread trimming solenoid so that the distance from the left side of driving knife arm 1 to the screw tip on the plunger 2 of the thread trimming solenoid is 1 mm, and then tighten the bolt 3. (4) Loosen the bolt 4. -
Page 21: Regulate The Atmospheric Pressure
(1) Set free blocked hook. (2) Stick a pin in drill-hole 1 of the outer clutch disc.(3) Turn the pulley until the pin can be stuck in the drill-holes of both clutch parts.(4) Turn the pulley forwards and backwards until the hook is freely movable again.(5) Pull out pin.(6) Hold down hook and turn the pulley until safety clutch 2 engages. -
Page 22: Idle Of The Knife When The Vertical Cutter Is Turned Off
The vertical cutter does not function during each pneumatic lift of the dewing feet. During operation of the knee lever this is only the case after 2/3 lift. To start the vertical cutter after the operating lever down. Caution Risk of Injury! Turn the main switch off. -
Page 23: Timing Of Knife Movement
Loosen screw 9 (3×). Set the position of the eccentric sleeve 10 in the radial direction. The stroke (8 to 12 mm) should be appropriate to the material thickness. A stroke of 8 mm is set at the factory. Tighten screws 9 (3 ×)again. -
Page 24: Arm Bed And Its Accessories
A.ARM BED AND ITS ACCESSORIES — 21 — From the library of: Superior Sewing Machine & Supply LLC... - Page 25 A.ARM BED AND ITS ACCESSORIES Fig. Part No. Description Remarks HF914B8001 Screw M5×12 H005001040 Washer H415040080 Screw M4×8 HF927B8001 Thread take-up cover HE41B38001 Thread take-up cover HF930B8001 Plug HF933B8001 Dial HF935B8001 Dial shaft HF936B8001 Guard plate HF931B8001 Cover H003024040 Hexagonal nut H005001040 Washer H401040060 Screw M4×6...
- Page 26 A.ARM BED AND ITS ACCESSORIES Fig. Part No. Description Remarks HF967B8001 Winder wheel H7331D8001 Rubber ring H431050050 Screw M5×5 HF999B8001 Cord cover H7331G8001 Screw HF914B8001 Screw M5×12 HF915B8001 Screw M5×12 HF918B8001 Bar HF913B8001 Face plate HF919B8001 Bar HF920B8001 Oil pillow HF998B8001 Leg HE61B68001 Slide Plate HM41B47101 Needle plate (8)
- Page 27 A.ARM BED MECHANISM Fig. Part No. Description Remarks HF980I8001 Spacer HF979I8001 Belt tensioner H415040060 Screw M4×6 HF970B8001 Bobbin seat HE41B58001 Bobbin seat HF946B8001 Washer HM41B88001 Crack HM41B98001 Screw HM42B08001 Screw H005014080 Washer HE60I77101 Pushing plate HM43B28001 Chip funnel H7327G8001 Screw M4×10 HM43B98001 Chip guide plate(8) A100...
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Page 28: Thread Tension Regulator Mechanism
B.THREAD TENSION REGULATOR MECHANISM — 25 — From the library of: Superior Sewing Machine & Supply LLC... - Page 29 B.THREAD TENSION REGULATOR MECHANISM Fig. Part No. Description Remarks H003002050 Nut HF930C8001 Thead hook HF929C8001 Thread tension stud HA112B0693 Thread tension discs HA710B0672 Tension spring HA710B0671 Tension adjusting nut HF907C8001 Thread tension stud HF917C8001 Thread guide H3221B6817 Thread tension releasing pin H3221B6811 Shoulder screw H7316B8001 Screw HF925C8001 Thread guide...
- Page 30 B.THREAD TENSION REGULATOR MECHANISM Fig. Part No. Description Remarks H415040100 Screw HF906C8001 Magnet support HF922C8001 Solenoid H403050120 Screw M5×12 H4710C8001 Tension spring H003002040 Nut H003045040 Nut — 27 — From the library of: Superior Sewing Machine & Supply LLC...
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Page 31: Sewing Mechanism
C.SEWING MECHANISM — 28 — From the library of: Superior Sewing Machine & Supply LLC... - Page 32 C.SEWING MECHANISM Fig. Part No. Description Remarks H6715C8001 Screw H431060060 Screw M6×6 HF907D8001 Crank H431060060 Screw M6×6 HF914B8001 Screw HF905D8001 Upper shaft H3205J0662 Ball bearing H431080100 Screw M8×10 HF913D8001 Counterweight H007009200 Retainer ring HF921D8001 Ball bearing HF918D8001 Bushing H431060060 Screw M6×6 HF943D8001 Bobbin winder driving wheel H431060100 Screw...
- Page 33 C.SEWING MECHANISM Fig. Part No. Description Remarks HF926G8001 Bushing HF922G8001 Needle bar link H431030050 Screw M3×5 HD726G8001 Screw M4×12 HF924G8001 Needle bar holder HF928G8001 Threaded bolt HF927G8001 Slide block HF938G8001 Oil wick H415040100 Screw M4×10 HF933G8001 Slide guide HF939G8001 Oil feeding pipe HF936G8001 Oil pipe HF937G8001 Oil wick HF940G7101 Rubber...
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Page 34: Presser Foot Mechanism
D.PRESSER FOOT MECHANISM — 31 — From the library of: Superior Sewing Machine & Supply LLC... - Page 35 D.PRESSER FOOT MECHANISM Fig. Part No. Description Remarks H428050080 Screw M5×8 HF919E8001 Support pin HF906E8001 Adjusting bracket H428050080 Screw M5×8 HF912E8001 Oil wick HF911E8001 Oil pipe HF908E8001 Oil wick HF913E8001 Plate H005018050 Washer H415050100 Screw M5×10 HF956G8001 Oil feeding pipe HF917E8001 Link pin HF916E8001 Link H415060200 Screw...
- Page 36 D.PRESSER FOOT MECHANISM Fig. Part No. Description Remarks HF974E8001 Plate HF973E8001 Oil satchel HF972E8001 Draught rod HF961E8001 Plug HF983E8001 Oil pipe HF984E8001 Oil wick HF982E8001 Spring HF986E8001 Oil wick HF977E8001 Pin H401040040 Screw M4×4 HF977E8001 Pin HF978E8001 Oil wick HF979E8001 Stopper claw HF925F8001 Joint HF926F8001 Pin HF933F8001 Slide block...
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Page 37: Upper Feed Lifting Rock Shaft Mechanism
E.UPPER FEED LIFTING ROCK SHAFT MECHANISM — 34 — From the library of: Superior Sewing Machine & Supply LLC... - Page 38 E.UPPER FEED LIFTING ROCK SHAFT MECHANISM Fig. Part No. Description Remarks H007013080 E-type retaining ring 8 HF965F7101 Press adjusting plate assy HF963F8001 Pin HF961F7101 Press adjusting dial H007013050 E-type retaining ring 5 H609030080 Spring pin HF976F8001 Spring support (U) HF972F8001 Spring HF975F8001 Hose HF973F8001 Shaft HF974F8001 Spring support (D)
- Page 39 E.UPPER FEED LIFTING ROCK SHAFT MECHANISM Fig. Part No. Description Remarks H428060160 Screw H415040550 Screw H005008040 Spring washer H005004040 Washer — 36 — From the library of: Superior Sewing Machine & Supply LLC...
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Page 40: Stitch Regulator Mechanism
F.STITCH REGULATOR MECHANISM — 37 — From the library of: Superior Sewing Machine & Supply LLC... - Page 41 F.STITCH REGULATOR MECHANISM Fig. Part No. Description Remarks HF925H8001 Spring HF924H8001 Washer HF922H8001 Feed adjusting arm HF923H8001 Pin H431050080 Bolt M5×8 HF914H8001 Feed adjusting screw (long) HA700F2030 Positioning pin H3200F2110 Spring HA109F0674 O ring HA720F0687 Spring HA720F0683 Support plate HA7421F120 Feed adjusting dial HF909H8001 Feed adjusting dial plate(L) HA720F0685 Bushing HA720F0686 Screw...
- Page 42 F.STITCH REGULATOR MECHANISM Fig. Part No. Description Remarks HF941H8001 Pin HF973H8001 Pull spring H424100100 Thread pin M10×10 H3100D2090 Presser spring HF963H8001 Key HF966H8001 Oil seal HF958H8001 Shaft HF967H8001 Oil seal HF961H8001 Guide H005009050 Elastic washer H415050160 Screw M5×16 HF974H8001 Pothook —...
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Page 43: Feeding And Feed Lifting & Rotating Hook Shaft Mechanism
G.FEEDING AND FEED LIFTING & ROTATING HOOK SHAFT MECHANISM — 40 — From the library of: Superior Sewing Machine & Supply LLC... - Page 44 G.FEEDING AND FEED LIFTING & ROTATING HOOK SHAFT MECHANISM Fig. Part No. Description Remarks HF928I8001 Feed shaft HF959G8001 Rubber cap HF965G8001 Adjusting shaft collar H415040120 Bolt M4×12 HF927E8001 Bushing(L) HF931I8001 Thurst ring HF930I8001 C-type retaining ring HF941I8001 Tube HF942I8001 Oil wick HF937I8001 Bushing HF945I8001 Washer HF935I8001 Feed arm(L)
- Page 45 G.FEEDING AND FEED LIFTING & ROTATING HOOK SHAFT MECHANISM Fig. Part No. Description Remarks HF924E8001 Bushing(R) H428060100 Bolt M6×10 H429060100 Bolt M6×10 HF975J8001 Coupling claw(L) HF978J8001 Toothed wreath HF977J8001 Coupling craw(R) HC01118026 O ring HF988I8001 Oil seal HF987I8003 Bushing(L) HF992I8001 Bolt H34412C110 Plunger spring HF966I8001 Plunger HA110E0672 Oil feeding pipe...
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Page 46: Hook Saddle Mechanism
I.HOOK SADDLE MECHANISM — 43 — From the library of: Superior Sewing Machine & Supply LLC... - Page 47 H.HOOK SADDLE MECHANISM Fig. Part No. Description Remarks HF920J8001 Collor H428050050 Screw M5×5 H007013040 E-type retaining ring HM41J08001 Driving knife arm H415040120 Screw M4×12 HF939J8001 Pin H007013030 E-type retaining ring H415060220 Bolt M6×22 HF92BJ8001 Spacer HF92CJ8001 Eccentric collar HF940J8001 Roller HG021J8001 Driving shaft mandril H415030060 Bolt M3×6...
- Page 48 H.HOOK SADDLE MECHANISM Fig. Part No. Description Remarks HF984J8001 Bearing HF91CJ7101 Gear base assy HC01095018 Wave washer H005014060 Belleville spring washer HF91IJ8001 Adjusting block HF91JJ8001 Hexagonal nut HF91AJ8001 Driving gear HF947J8001 Oil joint(M) H415040080 Bolt(short) M4×8 H415040120 Bolt(long) M4×12 HF958J8001 Oil seal HG159K8001 Thread trimmer cam H415040080 Bolt M4×8...
- Page 49 H.HOOK SADDLE MECHANISM Fig. Part No. Description Remarks HF967J8001 Driving shaft HF963J8001 Boll bushing HF962J8001 Lower shaft holder HF965J8001 Screw HF966J8001 Bolt HF970J8001 Washer HF969J8001 Driving gear H403030080 Screw HC01387018 O-ring HG164K8001 Bearer M4×10 H415040120 Screw HG175K8001 Pin H007013035 Lock washer M4×8 HF92CJ8001 Bushing HG174K8001 Pump...
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Page 50: Oil Lubrication Mechanism
I.OIL LUBRICATION MECHANISM — 47 — From the library of: Superior Sewing Machine & Supply LLC... - Page 51 I.OIL LUBRICATION MECHANISM Fig. Part No. Description Remarks H401050080 Bolt M5×8 H005018050 Spacer HF909K8001 Oil wick support HF917K8001 Oil joint HF908K8001 Tube guide HF906K8001 Felt HF907K8001 Oil wick φ4×850 HF905K8001 Oil tube φ7×φ5×740 HF918K8001 Oil tube φ7×φ5×600 HF914K8001 Felt HF915K8001 Oil wick φ4×680 HF913K8001 Oil tube φ7×φ5×580...
- Page 52 I.OIL LUBRICATION MECHANISM Fig. Part No. Description Remarks HF923K8001 Oil pipe HE60K48001 Oil pipe φ7×φ5×100 HE60K58001 Oil pipe φ7×φ5×110 HF926K8001 Support spring HF932K8001 Felt part HA300I2040 Cable tie HF934K8001 Oil pipe φ3×φ5×250 HF937K8001 Oil pipe φ3×φ5×600 HE60K88001 Oil pipe φ3×φ5×600 HF974K8001 Oil pipe φ3×φ5×1200 —...
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Page 53: Accessories
J.ACCESSORIES — 50 — From the library of: Superior Sewing Machine & Supply LLC... - Page 54 J.ACCESSORIES Fig. Part No. Description Remarks HA307J0671 Hinge support HF914L8001 Hinge H411060100 Screw HF905L8001 Head cushion HF971B8001 Bobbin HE41J38001 Bobbin HA100J2170 Oil tank H2004O0069 Oiler JZDP1700P23 Neddle HF913L8001 Detector setting plate HA200J2030 Cotton stand assy HA100J2180 Cover HM40L48001 Oil plate 16250 Nail HB01001025 Hexagonal wrench (2.5)
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Page 55: Pneumatic Control Unit
K.PNEUMATIC CONTROL UNIT — 52 — From the library of: Superior Sewing Machine & Supply LLC... - Page 56 K.PNEUMATIC CONTROL UNIT Fig. Part No. Description Remarks HF930M8001 connecting box base HF924M8001 PCB board HF932M8001 connecting box screw H409040160 screw H415030120 screw HF931M8001 connecting box cover HF925M7101 control box wire assy H801045200 screw HA300J2230 washer HE60M47101 pneumatic assy HA300I2040 nylon fixer HF958M8001 windpipe 300MM φ6 HF914M8001 windpipe...
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Page 57: Knifr Mechanism
L.KNIFE MECHANISM — 54 — From the library of: Superior Sewing Machine & Supply LLC... - Page 58 L.KNIFE MECHANISM Fig. Part No. Description Remarks HE60N68001 pedestal H415040160 screw M4×16 HE60N78001 shaft HE60N98001 Setting bracket HE61N08001 bushing HM40N58001 knife HM40N68001 bracket H411040100 screw M4×10 H005001040 washer H003002040 nut H415030060 screw M3×6 H005001030 washer HE61N38001 connecting block H415040200 screw M4×20 H005001040 washer HE61N47101 bearing complete...
- Page 59 L.KNIFE MECHANISM Fig. Part No. Description Remarks H417040180 screw M4×18 H003002040 nut HE64N28001 bushing HE64N38001 Spring HE64N57101 Cam wheel assy H428060080 screw M6×8 H415040080 screw M4×8 H005001040 washer HE64N88001 wheel HE64N97101 link HE65N18001 pin HE65N28001 oil wick HE65N48001 link H427050060 screw M5×6 HE65N68001 shaft HE65N78001 bushing...
- Page 60 L.KNIFE MECHANISM Fig. Part No. Description Remarks HE62N68001 bushing HE68N48001 lever HE68N58001 bushing HE68N68001 link H415050100 screw HE68N88001 pin HE68N98001 block HE69N08001 control lever HF01080300 hand knob M8×30 HE69N18001 block H415030120 screw M3×12 HE69N28001 block H415040080 screw — 57 — From the library of: Superior Sewing Machine &...
- Page 61 ADD: 1418, Yishan Road, Shanghai, China Zip Code: 201103 Overseas Business: TEL: 86-21-64853303 FAX: 86-21-64854304 E-mail:highlead@online.sh.cn http://www.highlead.com.cn The description covered in this manual is subject to change for improvement of the commodity without notice 2014.09. Printed From the library of: Superior Sewing Machine & Supply LLC...