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Brother International BAS-311G Instruction Manual - English - Page 65

Thread take-up spring, 10-3. Arm thread guide R, STANDARD ADJUSTMENTS

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10. STANDARD ADJUSTMENTS 10-2. Thread take-up spring Specifications Thread take-up spring height (mm) Thread take-up spring tension (N) Heavy-weight materials (-01[]) Medium-weight materials (-02[]) 7 − 10 0.6 − 1.2 0.2 − 0.5 Seatbelt (-03[]) 2 − 4 1.0 − 1.4 Lower Higher Loosen the set screw (1) and turn the adjuster to adjust. 5022Q Turn the tension stud (2) with a screwdriver to adjust the tension. Stronger Weaker 2265B NOTE: If the thread tension spring is not adjusted correctly, the upper thread trailing length will be uneven after thread trimming. 10-3. Arm thread guide R More thread Less thread Index mark The standard position of arm thread guide R (1) is when the screw (2) is aligned with the index mark. Loosen the screw (2) and move arm thread guide R (1) to adjust. * When sewing heavy material, move arm thread guide R (1) to the left. (The thread take-up amount will become greater.) * When sewing light material, move arm thread guide R (1) to the right. (The thread take-up amount will become less.) 5030Q BAS-300G, BAS-311G, BAS-326G 56

Section	Page
COVER	1
SAFETY INSTRUCTIONS	3
[1] Safety indications and their meanings	3
[2] Notes on safety	4
[3] Warning labels	6
CONTENTS	8
1. NAMES OF MAJOR PARTS	10
2. SPECIFICATIONS	11
3. INSTALLATION	12
3-1. Table processing diagram	13
3-2. Installing the control box	14
3-3. Installing the oil pan	14
3-4. Installing the machine head	15
3-5. Tilting the sewing machine head	18
3-6. Installing the operation panel	19
3-7. Installing the treadle unit (motor-driven work clamp specifications)	20
3-8. Installing the two-pedal foot switch (pneumatic work clamp specifications)	20
3-9. Connecting the cords	21
3-10. Connecting the ground wire	23
3-11. Connecting the power cord	24
3-12. Installing the cotton stand	24
3-13. Installing the pneumatic unit (pneumatic work clamp specifications)	25
3-14. Installing the eye guard	26
3-15. Installing the motor cover	26
3-16. Lubrication	27
3-17. Installing the machine head fixing bolt	28
4. PREPARATION BEFORE SEWING	29
4-1. Installing the needle	29
4-2. Threading the upper thread	29
4-3. Winding the lower thread	31
4-4. Installing the bobbin case	32
4-5. Thread tension	33
4-5-1. Lower thread tension	33
4-5-2. Upper thread tension	33
4-6. Home position detection	34
5. USING THE OPERATION PANEL (BASIC OPERATIONS)	35
5-1. Name and function of each operation panel item	35
5-2. Loading sewing data	37
5-3. Setting the program number	37
5-4. Setting the X-scale and Y-scale	38
5-5. Setting the sewing speed	38
5-6. Checking the sewing pattern	39
5-7. Setting the work clamp lift amount	40
6. USING THE OPERATION PANEL (ADVANCED OPERATIONS)	42
6-1. List of advanced functions	42
6-2. Setting memory switches	43
6-3. List of memory switch settings	44
6-4. Using the lower thread counter	45
6-5. Using the production counter	46
6-6. Setting the split number	47
6-7. Using user programs	48
6-8. Using cycle programs	51
6-9. Direct selection (combination table)	53
6-10. X and Y parallel movement of sewing pattern	54
6-11. Clearing memory data (reinitialization)	55
7. USING CF CARDS	56
7-1. Notes on handling CF cards (sold separately)	56
7-2. Structure of a CF card folder	56
7-3. Data read/write mode	57
7-3-1. Reading all sewing data from the CF card at once	58
7-3-2. Writing all sewing data to the CF card at once	59
8. SEWING	60
8-1. Sewing	60
8-2. Using the STOP switch	61
8-3. Using the thread wiper switch	61
9. CLEANING	62
9-1. Cleaning the rotary hook	62
9-2. Cleaning the control box air inlet ports	63
9-3. Draining the oil	63
9-4. Cleaning the eye guard	63
9-5. Checking the needle	63
9-6. Lubrication	63
10. STANDARD ADJUSTMENTS	64
10-1. Checking the machine head switch	64
10-2. Thread take-up spring	65
10-3. Arm thread guide R	65
10-4. Adjusting the needle bar height	66
10-5. Adjusting the needle bar lift amount	66
10-6. Adjusting the needle contact pressure of the driver	66
10-7. Adjusting the needle clearance	67
10-8. Adjusting the shuttle race thread guide	67
10-9. Rotary hook lubrication amount	67
10-10. Adjusting the position of the movable knife	68
10-11. Replacing the movable and fixed knives	70
10-11-1. Installing the feed plate	71
10-12. Adjusting the thread wiper	72
10-13. Presser foot installation position	72
10-14. Changing the intermittent stroke	73
10-15. Adjusting the work clamp lift amount	75
10-16. Adjusting the air pressure (pneumatic work clamp specifications)	75
11. TABLE OF ERROR CODES	76
12. TROUBLESHOOTING	80
13. 7-SEGMENT DISPLAY	83