Brother BAS-761 Service Manual download pdf (Page 6)

INDEX

1. MECHANICAL DESCRIPTIONS .........................................................................................1-01

1-1. Upper shaft and needle bar mechanism ..................................................................................................1-01

1-2. Lower shaft and rotary hook mechanism .................................................................................................1-01

1-3. Needle zigzag mechanism .......................................................................................................................1-02

1-3-1. Zigzag generation mechanism..........................................................................................................1-03

1-3-2. Standard sewing and bar tacking......................................................................................................1-03

1-4. Lubrication mechanism ............................................................................................................................1-04

1-4-1. Needle bar and thread take-up lubrication........................................................................................1-04

1-4-2. Rotary hook and gear lubrication ......................................................................................................1-05

1-5. Thread trimmer.........................................................................................................................................1-06

1-6. Presser bar lifter .......................................................................................................................................1-08

1-7. Stacker .....................................................................................................................................................1-08

1-8. Feed guide mechanism ............................................................................................................................1-09

1-9. Folding mechanism ..................................................................................................................................1-10

1-10. Rise-and-fall equipment of slide plate.....................................................................................................1-11

1-11. Bobbin winder mechanism......................................................................................................................1-12

1-12. Suction (Vacuum) mechanism ................................................................................................................1-12

2. BEFORE DISASSEMBLY AND ADJUSTMENT.........................................................2-01

2-1. Basic operation.........................................................................................................................................2-01

2-2. Disassembling and assembling for transfer through narrow doors..........................................................2-03

3. DISASSEMBLY................................................................................................................................3-01

3-1. Cover........................................................................................................................................................3-01

3-2. Presser foot mechanism...........................................................................................................................3-02

3-3. Rotary hook and fixed knife......................................................................................................................3-02

3-4. Movable knife and thread trimmer............................................................................................................3-03

3-5. Needle bar................................................................................................................................................3-03

3-6. Motor ........................................................................................................................................................3-03

3-7. Timing belt ................................................................................................................................................3-03

3-8. Auxiliary shaft ...........................................................................................................................................3-03

3-9. Zigzag.......................................................................................................................................................3-03

4. ASSEMBLY

........................................................................................................................................4-01

4-1. Zigzag.......................................................................................................................................................4-01

4-2. Auxiliary shaft ...........................................................................................................................................4-02

4-3. Timing belt ................................................................................................................................................4-02

4-4. Motor ........................................................................................................................................................4-03

4-5. Needle bar................................................................................................................................................4-04

4-6. Movable knife and thread trimmer............................................................................................................4-05

4-7. Rotary hook and fixed knife......................................................................................................................4-06

4-8. Presser foot mechanism...........................................................................................................................4-06

4-9. Cover........................................................................................................................................................4-07

1 2 3 4 5 6 7 8 9 10 11 ... 178 179

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Brother BAS-761 Service Manual Page 6

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