Hand Book - English
Page 1
LT2−B875 Mark II Twin Needle Needle Feed Split Needle Bar Lock stitcher with Large Hook (and Thread Trimmer) Specifications Application Max. stitch length Needle bar stroke Thread take-up stroke Manual Height of presser foot Knee Auto-presser bar lifter Height of feed dog Needles Hook Needle feed mechanism Single needled stop device Thread trimmer Thread wiper Quick reverse Automatic presser bar lifter −3 −5 −7 For medium materials For heavy materials For extra heavy materials 3,000 rpm 7 mm 33.4 mm 64.6 mm 7 mm 13...
LT2−B875 Mark II Twin Needle Needle Feed Split Needle Bar Lock stitcher with Large Hook (and Thread Trimmer) Specifications Application Max. stitch length Needle bar stroke Thread take-up stroke Manual Height of presser foot Knee Auto-presser bar lifter Height of feed dog Needles Hook Needle feed mechanism Single needled stop device Thread trimmer Thread wiper Quick reverse Automatic presser bar lifter −3 −5 −7 For medium materials For heavy materials For extra heavy materials 3,000 rpm 7 mm 33.4 mm 64.6 mm 7 mm 13...
Hand Book - English
Page 2
LT2−B8750 Mark II Twin Needle Needle Feed Split Needle Bar Lock Stitcher, Large Hook and Thread Trimmer Ply Sensor Specifications Application Max. speed Max. stitch length Auto-presser bar lifter Needles Hook Thread trimmer Thread wiper Quick reverse Automatic presser bar lifter −903 −905 −907 For medium materials For heavy materials For extra heavy materials 3,000 rpm 7 mm 8 mm DP ×5#14 DP ...
LT2−B8750 Mark II Twin Needle Needle Feed Split Needle Bar Lock Stitcher, Large Hook and Thread Trimmer Ply Sensor Specifications Application Max. speed Max. stitch length Auto-presser bar lifter Needles Hook Thread trimmer Thread wiper Quick reverse Automatic presser bar lifter −903 −905 −907 For medium materials For heavy materials For extra heavy materials 3,000 rpm 7 mm 8 mm DP ×5#14 DP ...
Hand Book - English
Page 3
B875 Mark II (For Standard) For normal *The specification with a maximum stitch width of 5 / 8" (15.9 mm) is available. *The ¡ symbol is a presser foot assembly with finger guard. Needle gauge Needle clamp set Needle clamp assy For medium & heavy materials (−3, −5) (inch) (mm) Needle plate Feed dog Presser foot... 159575−101 ¡ Needle clamp set Needle clamp assy Needle plate Feed dog (−3, −5) For medium & heavy materials Presser foot assy (−3, −5) For medium & heavy materials 2000.7 LT2−B875 Mark II, B8750 Mark II 3/9
B875 Mark II (For Standard) For normal *The specification with a maximum stitch width of 5 / 8" (15.9 mm) is available. *The ¡ symbol is a presser foot assembly with finger guard. Needle gauge Needle clamp set Needle clamp assy For medium & heavy materials (−3, −5) (inch) (mm) Needle plate Feed dog Presser foot... 159575−101 ¡ Needle clamp set Needle clamp assy Needle plate Feed dog (−3, −5) For medium & heavy materials Presser foot assy (−3, −5) For medium & heavy materials 2000.7 LT2−B875 Mark II, B8750 Mark II 3/9
Hand Book - English
Page 4
... ¡ 159575−101 ¡ (−6) : For heavy materials *-6 (for heavy materials) is a specification between -5 (for heavy materials) and -7 (for extra heavy materials). *The feed dog is different from normal parts. *The ¡ symbol is a presser foot assembly with finger guard. Needle gauge Needle clamp set Needle clamp assy Needle plate Feed dog (inch) (mm) 3 /16 (4.8) L:S15723−001 R:S15724−001 L:S15725−001 R:S15726−...
... ¡ 159575−101 ¡ (−6) : For heavy materials *-6 (for heavy materials) is a specification between -5 (for heavy materials) and -7 (for extra heavy materials). *The feed dog is different from normal parts. *The ¡ symbol is a presser foot assembly with finger guard. Needle gauge Needle clamp set Needle clamp assy Needle plate Feed dog (inch) (mm) 3 /16 (4.8) L:S15723−001 R:S15724−001 L:S15725−001 R:S15726−...
Hand Book - English
Page 5
... 2000.7 LT2−B875 Mark II, B8750 Mark II 5/9 S07527−001) and the installation screw (part No. 148539−101) are not provided with the needle plate, so they must be ordered separately if required. *The specification with a maximum stitch width of 5 / 8" (15.9 mm) is available. *The ¡ symbol is a presser foot assembly with finger guard. B875 Mark II (For Thread trimmer) For...
... 2000.7 LT2−B875 Mark II, B8750 Mark II 5/9 S07527−001) and the installation screw (part No. 148539−101) are not provided with the needle plate, so they must be ordered separately if required. *The specification with a maximum stitch width of 5 / 8" (15.9 mm) is available. *The ¡ symbol is a presser foot assembly with finger guard. B875 Mark II (For Thread trimmer) For...
Hand Book - English
Page 6
B875 Mark II (For Thread trimmer) (−6) : For heavy materials *-6 (for heavy materials) is a specification between -5 (for heavy materials) and -7 (for extra heavy materials). *The feed dog is different from normal parts. *The ¡ symbol is a presser foot assembly with finger guard. Needle gauge Needle clamp set Needle clamp assy Needle plate Feed dog (inch) ... R:S15738−001 155853−001 158756−001 Presser foot assy 155457−001 S36564−001 ¡ 155453−001 S36566−001 ¡ Feed dog LT2−B875 Mark II, B8750 Mark II 6/9 2000.7
B875 Mark II (For Thread trimmer) (−6) : For heavy materials *-6 (for heavy materials) is a specification between -5 (for heavy materials) and -7 (for extra heavy materials). *The feed dog is different from normal parts. *The ¡ symbol is a presser foot assembly with finger guard. Needle gauge Needle clamp set Needle clamp assy Needle plate Feed dog (inch) ... R:S15738−001 155853−001 158756−001 Presser foot assy 155457−001 S36564−001 ¡ 155453−001 S36566−001 ¡ Feed dog LT2−B875 Mark II, B8750 Mark II 6/9 2000.7
Hand Book - English
Page 7
...;001 Needle clamp set Needle clamp assy Feed dog (−3) For medium materials (−5) For heavy materials Needle plate (−3, −5) For medium & heavy materials Presser foot assy (−3, −5) For medium & heavy materials 2000.7 LT2−B875 Mark II, B8750 Mark II 7/9 B8750 Mark II (With ply sensor and thread trimmer) For normal *The thread trimming fixed knife (part No. S07527−001) and the installation screw (part No...
...;001 Needle clamp set Needle clamp assy Feed dog (−3) For medium materials (−5) For heavy materials Needle plate (−3, −5) For medium & heavy materials Presser foot assy (−3, −5) For medium & heavy materials 2000.7 LT2−B875 Mark II, B8750 Mark II 7/9 B8750 Mark II (With ply sensor and thread trimmer) For normal *The thread trimming fixed knife (part No. S07527−001) and the installation screw (part No...
Hand Book - English
Page 8
...−001 S36566−001 ¡ Feed dog LT2−B875 Mark II, B8750 Mark II 8/9 2000.7 B8750 Mark II (With ply sensor and thread trimmer) (−6) : For heavy materials *-6 (for heavy materials) is a specification between -5 (for heavy materials) and -7 (for extra heavy materials). *The feed dog is different from normal parts. *The ¡ symbol is a presser foot assembly with finger guard.
...−001 S36566−001 ¡ Feed dog LT2−B875 Mark II, B8750 Mark II 8/9 2000.7 B8750 Mark II (With ply sensor and thread trimmer) (−6) : For heavy materials *-6 (for heavy materials) is a specification between -5 (for heavy materials) and -7 (for extra heavy materials). *The feed dog is different from normal parts. *The ¡ symbol is a presser foot assembly with finger guard.
Hand Book - English
Page 9
Model name LT2−B841 LT2−B842 (Standard) LT2−B842 (Thread trimmer) LT2−B845 (Standard) LT2−B845 (Thread trimmer) LT2−B847 (Standard) LT2−B847 (Thread trimmer) LT2−B848 (Standard) LT2−B848 (Thread trimmer) LT2−B872 (Standard) LT2−B872 (Thread trimmer) LT2−B875 (Standard) LT2−B875 (Thread trimmer) Gauge part sizes which require special sewing machine processing Over 1−1 / 2" (38.1mm) Over 1−1 / 2" (38.1mm) Over...
Model name LT2−B841 LT2−B842 (Standard) LT2−B842 (Thread trimmer) LT2−B845 (Standard) LT2−B845 (Thread trimmer) LT2−B847 (Standard) LT2−B847 (Thread trimmer) LT2−B848 (Standard) LT2−B848 (Thread trimmer) LT2−B872 (Standard) LT2−B872 (Thread trimmer) LT2−B875 (Standard) LT2−B875 (Thread trimmer) Gauge part sizes which require special sewing machine processing Over 1−1 / 2" (38.1mm) Over 1−1 / 2" (38.1mm) Over...
Instruction Manual - Multi
Page 1
... LT2-B875 MarkII INSTRUCTION MANUAL BEDIENUNGSANLEITUNG MANUEL D'INSTRUCTIONS MANUAL DE INSTRUCCIONES TWIN NEEDLE LOCK STITCHER Please read this manual within easy reach for quick reference. Please keep this manual before using the machine. Por favor guarde este manual al alcance de la mano para una rapida referencia. 4=1 OM all ZWEINADEL-STEPPSTICHMASCHINE Bitte vor Gebrauch der Maschine diese Anleitung lesen! DOS AGUJAS DOBLE ARRASTRE Por favor lea este manual antes de usar...
... LT2-B875 MarkII INSTRUCTION MANUAL BEDIENUNGSANLEITUNG MANUEL D'INSTRUCTIONS MANUAL DE INSTRUCCIONES TWIN NEEDLE LOCK STITCHER Please read this manual within easy reach for quick reference. Please keep this manual before using the machine. Por favor guarde este manual al alcance de la mano para una rapida referencia. 4=1 OM all ZWEINADEL-STEPPSTICHMASCHINE Bitte vor Gebrauch der Maschine diese Anleitung lesen! DOS AGUJAS DOBLE ARRASTRE Por favor lea este manual antes de usar...
Instruction Manual - Multi
Page 2
... re-install work . ered by Brother. The machine may result in personal injury or damage to the machine. • If an error occurs in safe use beforehand. them nett the power cord from unauthorized modifi- The motor will keep turning even after the power is switched off as this may operate if the treadle is switched off as the rotary hook • Any problems...
... re-install work . ered by Brother. The machine may result in personal injury or damage to the machine. • If an error occurs in safe use beforehand. them nett the power cord from unauthorized modifi- The motor will keep turning even after the power is switched off as this may operate if the treadle is switched off as the rotary hook • Any problems...
Instruction Manual - Multi
Page 11
... assembly 74 14. Installing the oil pan 12 5-2. Installing the bobbin winder 16 5-6. Removing the bobbin or cap 23 6-3. To stop the needle bars (right and left) 33 6-7-2. Sewing 36 7-2. THREAD TENSION 37 8-1. Adjusting the presser foot pressure 38 9. Adjusting of stitches: quick-reference guide 34 7. Adjusting the needle and rotary hook timing ... 53 11-4-1. Clearances between rotary hook and opener 55 11-4-4. Needle bar height and lift amount 56 11-5. Adjusting of the needles and feed timing 63 12. NAMES OF MAJOR PARTS 1 2. MACHINE SPECIFICATIONS...
... assembly 74 14. Installing the oil pan 12 5-2. Installing the bobbin winder 16 5-6. Removing the bobbin or cap 23 6-3. To stop the needle bars (right and left) 33 6-7-2. Sewing 36 7-2. THREAD TENSION 37 8-1. Adjusting the presser foot pressure 38 9. Adjusting of stitches: quick-reference guide 34 7. Adjusting the needle and rotary hook timing ... 53 11-4-1. Clearances between rotary hook and opener 55 11-4-4. Needle bar height and lift amount 56 11-5. Adjusting of the needles and feed timing 63 12. NAMES OF MAJOR PARTS 1 2. MACHINE SPECIFICATIONS...
Instruction Manual - Multi
Page 12
...-1. Adjusting the presser foot height 50 11-3. Adjusting the thread tension spring 51 11-4. Adjusting the rotary hook lubrication amount.. 61 11-6. Needle to rotary hook point gap 53 11-4-2. Adjusting of the needles and feed timing 63 12. MACHINE SPECIFICATIONS 3 3. WORK TABLE AND MOTOR 9 5. SEWING 35 7-1. SWITCHING BETWEEN UPPER FEED AND LOWER FEED (B842-1C1 41 10. REPLACING GAUGE PARTS (CHANGING THE NEEDLE WIDTH) 64 13. Adjusting the thread tension 37 8-2. INSTALLING OPTIONAL PARTS 69 13-1. TROUBLESHOOTING GUIDE 75 Model No. Installing the bobbin or...
...-1. Adjusting the presser foot height 50 11-3. Adjusting the thread tension spring 51 11-4. Adjusting the rotary hook lubrication amount.. 61 11-6. Needle to rotary hook point gap 53 11-4-2. Adjusting of the needles and feed timing 63 12. MACHINE SPECIFICATIONS 3 3. WORK TABLE AND MOTOR 9 5. SEWING 35 7-1. SWITCHING BETWEEN UPPER FEED AND LOWER FEED (B842-1C1 41 10. REPLACING GAUGE PARTS (CHANGING THE NEEDLE WIDTH) 64 13. Adjusting the thread tension 37 8-2. INSTALLING OPTIONAL PARTS 69 13-1. TROUBLESHOOTING GUIDE 75 Model No. Installing the bobbin or...
Instruction Manual - Multi
Page 23
.... 1,8 kgf) Muy debit aprox. 2,94 N (aprox. 0,3 kgf) Model No. 3. PIECES EN OPTION 3. SONDERZUBEHORTEILE 3. LT2-B840 Mark II LT2-8870 Mark II OPTIONAL PARTS 3. Part code/ Teilecode/ Piece N°/ C6digo de parte Thread tension spring type/ Starke der Fadenspannungsfeder/ Force du ressort de tension de fil/ Fuerza de resorte de tension de hilo Thread take-up spring strength/ Fadenabnahmefeder/ Type de ressort de releveur de fil/ Tipo de...
.... 1,8 kgf) Muy debit aprox. 2,94 N (aprox. 0,3 kgf) Model No. 3. PIECES EN OPTION 3. SONDERZUBEHORTEILE 3. LT2-B840 Mark II LT2-8870 Mark II OPTIONAL PARTS 3. Part code/ Teilecode/ Piece N°/ C6digo de parte Thread tension spring type/ Starke der Fadenspannungsfeder/ Force du ressort de tension de fil/ Fuerza de resorte de tension de hilo Thread take-up spring strength/ Fadenabnahmefeder/ Type de ressort de releveur de fil/ Tipo de...
Instruction Manual - Multi
Page 63
... re-install them to carry out any maintenance and inspection of the motor's inertia. STANDARDEINSTELLUNGEN 11. STANDARD ADJUSTMENTS 11. AJUSTES ESTANDARES 11. ter the power is pressed by qualified personnel. • Ask your Brother dealer or a qualified electrician to their original positions and check that they operate correctly before starting work. • When carrying out inspection, adjustment and maintenance • When replacing consumable parts...
... re-install them to carry out any maintenance and inspection of the motor's inertia. STANDARDEINSTELLUNGEN 11. STANDARD ADJUSTMENTS 11. AJUSTES ESTANDARES 11. ter the power is pressed by qualified personnel. • Ask your Brother dealer or a qualified electrician to their original positions and check that they operate correctly before starting work. • When carrying out inspection, adjustment and maintenance • When replacing consumable parts...
Instruction Manual - Multi
Page 74
... ADJUSTMENTS 11. LT2-B840 Mark II LT2-B870 Mark II Tighten the screws e. 7. After adjustment is 1-1.5 mm. Install the feed dog. 12. The reference line 6 on the model and specifications of the machine. (Refer to the rotary hook tip iTh is aligned with the lower edge of the needle at this time. 5. STANDARDEINSTELLUNGEN 11. Turn the machine pulley to the table for the value for H). Remove the feed dog. 3. Set the stitch length...
... ADJUSTMENTS 11. LT2-B840 Mark II LT2-B870 Mark II Tighten the screws e. 7. After adjustment is 1-1.5 mm. Install the feed dog. 12. The reference line 6 on the model and specifications of the machine. (Refer to the rotary hook tip iTh is aligned with the lower edge of the needle at this time. 5. STANDARDEINSTELLUNGEN 11. Turn the machine pulley to the table for the value for H). Remove the feed dog. 3. Set the stitch length...
Instruction Manual - Multi
Page 79
... especificadas por Brother. - 64 - LT2-6840 Mark II LT2-6870 Mark II REMPLACEMENT DES JAUGES (CHANGEMENT DE LA LARGEUR D'AIGUILLE) 12. The machine may operate if the treadle is switched off the power switch and disconnect the power cord before starting work. Le moteur continuera de tourner en raison de sa propre inertie apres qu'on enfonce accidentellement la pedale, et...
... especificadas por Brother. - 64 - LT2-6840 Mark II LT2-6870 Mark II REMPLACEMENT DES JAUGES (CHANGEMENT DE LA LARGEUR D'AIGUILLE) 12. The machine may operate if the treadle is switched off the power switch and disconnect the power cord before starting work. Le moteur continuera de tourner en raison de sa propre inertie apres qu'on enfonce accidentellement la pedale, et...
Instruction Manual - Multi
Page 90
... hook, feed dog or other part damaged? The machine may operate if the treadle is switched off the power switch and disconnect the power cord before starting work. FEHLERSUCHE 14. Wait until the motor stops fully before carrying out troubleshooting. Page 16 0 1 I 2. GUIA PARA LA LOCALIZACION DE FALLAS 14. ", 'e i • Is the rotary hook properly lubricated? 46 If the oil level is incorrect, thread the thread correctly. 30 - ,.. TROUBLESHOOTING GUIDE...
... hook, feed dog or other part damaged? The machine may operate if the treadle is switched off the power switch and disconnect the power cord before starting work. FEHLERSUCHE 14. Wait until the motor stops fully before carrying out troubleshooting. Page 16 0 1 I 2. GUIA PARA LA LOCALIZACION DE FALLAS 14. ", 'e i • Is the rotary hook properly lubricated? 46 If the oil level is incorrect, thread the thread correctly. 30 - ,.. TROUBLESHOOTING GUIDE...
Instruction Manual - Multi
Page 91
... stitches - , -, , ...... , 5. TROUBLESHOOTING GUIDE 14. Where to set it is bent or broken, replace the needle. • Does the needle pass the center of broken needle sticking in the feed dog? If it is incorrect, install the needle correctly. • Is the machine properly threaded? If it is incorrect, thread the thread correctly. • Is the presser foot pressure too weak? If it to the correct position. Adjust the operating range of the thread...
... stitches - , -, , ...... , 5. TROUBLESHOOTING GUIDE 14. Where to set it is bent or broken, replace the needle. • Does the needle pass the center of broken needle sticking in the feed dog? If it is incorrect, install the needle correctly. • Is the machine properly threaded? If it is incorrect, thread the thread correctly. • Is the presser foot pressure too weak? If it to the correct position. Adjust the operating range of the thread...
Instruction Manual - Multi
Page 98
NAGOYA, JAPAN Printed in Japan / Gedruckt in Japan/Improme au Japon/Impreso en Japon 118-W42 S92W42-002 1996, 02, BC) INSTRUCTION MANUAL BEDIENUNGSANLEITUNG MANUEL D'INSTRUCTIONS MANUAL DE INSTRUCCIONES BROTHER INDUSTRIES, LTD.
NAGOYA, JAPAN Printed in Japan / Gedruckt in Japan/Improme au Japon/Impreso en Japon 118-W42 S92W42-002 1996, 02, BC) INSTRUCTION MANUAL BEDIENUNGSANLEITUNG MANUEL D'INSTRUCTIONS MANUAL DE INSTRUCCIONES BROTHER INDUSTRIES, LTD.