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Brother International BES-963 Instruction Manual - English - Page 161

Adjusting the Belt Tension

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8. Adjusting the Belt Tension Chapter 8 Adjustment The belt Tension is adjusted to the optimum tension at the time of shipment from the factory. However, as the belt is used,it becomes run in and may loosen around the machine pulley and motor pulley . Use the following procedure to check the belt tension. w q 8 mm of deflection in the belt 9.8 N of pressure w slot e Place a gauge against the belt q, loosen the nut w, and then turn the nut e to move the slot to the appropriate position so that there is 8 mm of deflection in the belt q when 9.8 N of pressure is applied. The machine operating direction is counterclockwise when seen from the machine pulley end. BES-963BC • BES-1263BC 159

Section	Page
Cover-top	1
SAFETY INSTRUCTIONS	3
Before Starting Operation	8
Procedure of Reading This Manual	10
Screen Composition	12
Contents	14
Chapter 1 Preparation of Embroidery Machine	19
1. Specifications	20
2. Names of Machine Components	21
3. Installation	22
3-1 Transportation of Machine	22
3-2 Installation of Machine	24
3-3 Preparation of Needle Bar Case	25
3-4 Mounting of Table	27
3-5 Mounting of Cotton Stand	31
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	38
4-3 Replacing and Selecting Needle	39
4-4 Attachment of Embroidery Hoop and Frame	40
4-5 Adjustment of Thread Tension	47
Chapter 2 Embroidering Procedures	49
Functions of Operation Panel	50
Operation Panel	50
Switches at Machine Heads	53
Switches on Tension Plate	53
Flowchart of Preparation for Embroidering	55
Turn on the Machine Power	56
Retrieve the Embroidery Data	57
Start Embroidering	57
Chapter 3 Selection of Data and Embroidering	59
What Can the Machine Do?	60
Selection of Data	61
Registration of Embroidery Data from Floppy Disk	61
Reading from Memory	64
Registration of Embroidery Data from BE-100	65
Deletion of Embroidery Data from Machine Memory	66
Modification of Embroidery Data Name	68
Sewing Operation	72
Before Starting Sewing	72
Starting Sewing Operation	72
Feedhold and Cancellation of Sewing	73
Step Forward and Step-Back	74
Step Forward/Step-Back Mode	74
Setting Amount or Timing of Step Forward/Step-Back	74
For Step Forward (Back)	75
Resuming Sewing	75
Writing the embroidering data	76
Chapter 4 Editing of Embroidering Data	77
What Can the Machine Do?	78
Rotation	79
Enlargement and Reduction	80
Mirror	82
Repetition	84
Other Editing	86
Chapter 5 Setting	89
What Can the Machine Do?	90
Setting of Needle Bars	92
Thread Breakage Sensor	94
Setting of sensor validity/invalidity	94
Thread Breakage Sensitivity	94
Automatic Step-Back	95
Setting of Lower Thread Counter/Stitch Counter	96
Setting of Machine	97
Embroidery Hoop	97
Speed Range	98
Speed of Each Speed Range	99
Setting of Mending	100
Thread Trimming Length	102
Thread Withdrawal Feed Length	102
Inching	103
Sewing Area	104
Registration of Sewing Start Position	105
Hoop Retract Point	105
Hoop Automatic Retract	106
Movement to Registered Sewing Start Point	106
Setting of Environment	107
Return to Start Point	107
Speed Range	107
Checking the Embroidery Area	108
Power Voltage	109
Setting of RS-232C Communication Speed	109
Display Language	110
Alarm Sound	111
Motive Speed	112
Small-Pitch Deletion	113
Release B1 error	114
Boring	115
Lock Stitch	116
Speed Limit in a Short Pitch	119
Feed Timing	120
Automatic Input Setting	121
Display of Information	124
Pattern Information	124
Features of Machine	125
Information about Versions	126
Chapter 6 Operation of Machine	127
1. Operating Procedures	128
1-1 Power Source	128
1-2 Preparation for Embroidering	128
2. Machine Stop	129
2-1. Stopping the Machine	129
2-2. Resetting Machine Stop	129
2-3. Emergency Stop of the Machine	129
2-4. Resetting Emergency Stop	129
3. Measures against Thread Breakage	130
3-1 Remedies	130
3-2 Mending	131
4. Jog Embroidering	133
5. Hoop Feed Position	133
6. Area Check	134
6-1 External Tracing	134
6-2 Automatic Hoop Movement in Area	134
7. Jog Switches	135
7-1 Hoop Movement to Start Position	135
7-2 Inching Mode during Embroidering (Forcible Hoop Movement)	136
8. Detection of Home position	137
Chapter 7 Maintenance	139
1. Cleaning	140
1-1 Cleaning and Lubrication of Rotary Hook	140
1-2 Cleaning of Needle Plate	141
1-3 Cleaning of Lower Shaft Module Fan	141
2. Oiling	142
2-1 Head	142
3. Greasing	144
3-1 Head	144
3-2 Feed Guide Section	148
Chapter 8 Adjustment	149
1. Adjusting Needle Bar Height	150
2. Replacing (Attaching) Rotary Hook	154
3. Adjustment of Clearance Between Needle and Rotary Hook	155
4. Adjustment of Timing Between Needle and Rotary Hook	156
5. Adjustment of Presser Foot Height	157
6. Adjustment of Thread Trimmer	158
6-1 Attaching the Fixed Knife	158
6-2 Checking the Movable Knife Position	158
7. Thread Wiper Adjustment	160
8. Adjusting the Belt Tension	161
Chapter 9 Error code list	163
Chapter 10 Troubleshooting	169
Mechanical Section	170
Electrical Section	172
Connection and Installation of Optional Equipment	181
Attaching Bobbin Winder	182