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Brother International BE-1204B Stand Alone Type Instruction Manual - English - Page 44

Adjustment of Thread Tension, Adjustment of upper thread, Adjustment of tension spring

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Page 44 highlights

Chapter 1 Preparations of operation 4-5 Adjustment of Thread Tension ! Adjustment of upper thread 0.8~1.4N Upper stitch width Upper thread W1248Q Lower thread Lower stitch width W1249Q Adjust upper thread tension to 0.8~1.4N when the thread is pulled at the needle bar thread guide. * Correct adjustment Turn the upper thread tension dial so that the needle thread can be pulled to the back of the material and that the lower stitch width will be about 1/3 of the upper stitch width. ! Adjustment of tension spring [1] [2] [3] 6~8mm 14mm 0.2~0.3N W1250Q 1. The standard height of the tension spring is the point from where the upper thread comes down by about 14 mm when it is pulled with certain tension which does not pull out the thread. 2. The standard force of the tension spring is 0.2 to 0.3 N at the start of the motion when it is pulled in the direction illustrated. Adjust it so that the tension spring does not move when the upper thread is pulled out slowly from the presser foot. 1-24 BE-1204B-BC • BE-1206B-BC

Section	Page
Cover1	1
SAFETY INSTRUCTIONS	3
Before Starting Operation	10
Procedure of Reading This Manual	12
Screen Composition	14
Contents	16
Chapter 1 Preparation of Embroidery Machine	21
1. Specifications	22
2. Names of Machine Components	24
3. Installation	25
3-1 Transportation of Machine	25
3-2 Installation of Machine	27
3-3 Preparation of Needle Bar Case	28
3-4 Mounting of Table	29
3-5 Mounting of Cotton Stand	32
3-6 Lubrication to Needle Bar Case	33
3-7 Grounding	34
4. Preparation for Embroidering	35
4-1 Upper Threading	35
4-2 Replacement of Bobbin	37
4-3 Replacing and Selecting Needle	39
4-4 Attachment of Embroidery Hoop and Frame	40
4-5 Adjustment of Thread Tension	44
Chapter 2 Embroidering Procedures	47
Functions of Operation Panel	48
Operation Panel	48
Switches at Machine Heads	51
Lamps and switches on the thread tension stand	52
Flowchart of Preparation for Embroidering	53
Turn on the Machine Power	54
Retrieve the Embroidery Data	55
Start Embroidering	55
Chapter 3 Selection of Data and Embroidering	57
What Can the Machine Do?	58
Selection of Embroidery Data	58
Embroidering Operation	58
Selection of Data	59
Registration of Embroidery Data from Floppy Disk	59
Reading from Memory	63
Registration of Embroidery Data from BES-100E	64
Deletion of Embroidery Data from Machine Memory	65
Tape Reader Input Setting	67
Modification of Embroidery Data Name	69
Sewing Operation	73
Before Starting Sewing	73
Starting Sewing Operation	73
Feedhold and Cancellation of Sewing	74
Step Forward and Step-Back	75
Step Forward/Step-Back Mode	75
Setting Amount or Timing of Step Forward/Step-Back	75
For Step Forward (Back)	76
Resuming Sewing	76
Writing the embroidering data	77
Chapter 4 Editing of Embroidering Data	79
What Can the Machine Do?	80
Editing	80
Rotation	81
Enlargement and Reduction	82
Mirror	84
Repetition	86
Other Editing	88
Chapter 5 Setting	91
What Can the Machine Do?	92
Setting of Needle Bars	92
Setting of Thread Breakage Sensor	92
Setting of Machine	92
Setting of Environment	92
Setting of Lock Stitch	93
Setting of speed limit in a small pitch	93
Display of Information	93
Hoop Retract Point	93
Hoop Movement	93
Setting of Needle Bars	94
Thread Breakage Sensor	96
Setting of sensor validity/invalidity	96
Thread Breakage Sensitivity	96
Automatic Step-Back	97
Setting of Lower Thread Counter/Stitch Counter	98
Setting of Machine	99
Embroidery Hoop	99
Speed Range	100
Speed of Each Speed Range	101
Setting of Mending	102
Thread Trimming Length	104
Thread Withdrawal Feed Length	105
Inching	106
Sewing Area	107
Registration of Sewing Start Position	108
Hoop Retract Point	108
Hoop Automatic Retract	109
Movement to Registered Sewing Start Point	109
Setting of Environment	110
Return to Start Point	110
Speed Range	111
Checking the Embroidery Area	111
Slow sewing needle number at start-up	112
Setting of RS-232C Communication Speed	113
Display Language	114
Alarm Sound	115
Motive Speed	116
Small-Pitch Deletion	117
Automatic pause insertion	118
Lock Stitch	119
Speed Limit in a Short Pitch	122
Feed Timing	123
Automatic Input Setting	124
Display of Information	127
Pattern Information	127
Features of Machine	128
Information about Versions	129
Chapter 6 Operation of Machine	131
1. Operating Procedures	132
1-1 Power Source	132
1-2 Preparation for Embroidering	132
2. Machine Stop	133
2-1 Stopping the Machine	133
2-2 Emergency Stop of the Machine	133
2-3 Resetting Emergency Stop	133
3. Measures against Thread Breakage	134
3-1 Remedies	134
3-2 Mending	135
4. Jog Embroidering	137
5. Hoop Feed Position	138
6. Area Check	139
6-1 External Tracing	139
6-2 Automatic Hoop Movement in Area	139
7. Jog Switches	140
7-1 Hoop Movement to Start Position	140
7-2 Inching Mode during Embroidering (Forcible Hoop Movement)	141
8. Detection of Home position	142
Chapter 7 Maintenance	143
1. Cleaning	144
1-1 Cleaning and Lubrication of Rotary Hook	144
1-2 Cleaning of Needle Plate	145
2. Oiling	146
2-1 Head	146
2-2 Lower shaft	147
3. Greasing	148
3-1 Cam grooves	148
3-2 Lower gear	150
3-3 Driving shaft	150
3-4 Needle bar flip-up mechanism	151
3-5 Feed Guide Section	152
Chapter 8 Adjustment	153
1. Adjusting Needle Bar Height	154
2. Attachment and Adjustment of Rotary Hook	158
3. Adjustment of Presser Foot Height	160
4. Adjustment of Thread Trimmer	161
4-1 Attaching the Fixed Knife	161
4-2 Checking the Movable Knife Position	161
5. Thread Wiper Adjustment	164
Chapter 9 Error code list	165
Chapter 10 Troubleshooting	173
Mechanical Section	174
Electrical Section	176
Chapter 11 Connection and Installation of Optional Equipment	181
1. Attaching Bobbin Winder	182