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Brother International BAS-342G PS Instruction Manual - English - Page 20

Adjusting the air pressure [6], 4-12. Adjusting the speed controller [7], Reference adjustments

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4. INSTALLATION 4-11. Adjusting the air pressure [6] Lift up the handle (2) of the regulator (1) and then turn it to adjust the air pressure to 0.5 MPa. After adjustment is complete, push the handle (2) downward to lock it. 2748B 4-12. Adjusting the speed controller [7] Upper knob Lower knob Valve 3 Valve 2 < Adjusting the lifting and lowering speeds for the work clamp > You can adjust the lifting and lowering speeds for the work clamp using the knobs on valves 1 and 2. • When the upper knob is tightened, the lifting speed becomes slower. When it is loosened, the lifting speed becomes faster. • When the lower knob is tightened, the lowering speed becomes slower. When it is loosened, the lowering speed becomes faster. Reference adjustments Valve 1 Upper knob Lower knob Valve 2 Upper knob Lower knob Fully tighten Fully tighten and then loosen by 8 turns Fully tighten and then loosen by 5 turns Fully tighten Valve 1 2749B You can operate the work clamp when the power is turned off by pressing the manual buttons (1). < Adjusting the speed of the thread trimming air cylinder > Valve 3 is used for adjusting the speed of the thread trimming air cylinder. To use, fully tighten both the upper and lower knobs, and then loosen them both by 6 turns. * If the knobs are not at the tightening settings mentioned above, upper thread trimming may not work correctly. 11 BAS-342G PS

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. TABLE PROCESSING DIAGRAM	12
4. INSTALLATION	13
4-1. Removing the machine head fixing bolts [1]	13
4-2. Installing the control box [2]	14
4-3. Installing the oil pan and support lever base	15
4-4. Installing the machine head	15
4-5. Tilting back and returning the machine head	16
4-6. Installing the gas spring	17
4-7. Installing the operation panel [3]	18
4-8. Installing the solenoid valve assembly	19
4-9. Connecting the air tubes [4]	19
4-10. Installing the air hose [5]	19
4-11. Adjusting the air pressure [6]	20
4-12. Adjusting the speed controller [7]	20
4-13. Connecting the cords [8]	21
4-14. Connecting the ground wire [9]	23
4-15. Securing the cords and air tubes [10]	24
4-16. Installing the eye guard [11]	25
4-17. Installing the cotton stand [12]	25
4-18. Lubrication [13]	26
4-19. Connecting the power cord [14]	27
4-20. Checking the safety switch [15]	27
5. PREPARATION BEFORE SEWING	28
5-1. Installing the needle	28
5-2. Operating the 2-pedal foot switch	28
5-3. Threading the upper thread	29
5-4. Winding the lower thread	31
5-5. Installing the bobbin case	32
5-6. Thread tension	33
5-6-1. Lower thread tension	33
5-6-2. Upper thread tension	33
5-7. Home position detection	34
5-8. Setting 2-step operation for the work clamp	35
6. USING THE OPERATION PANEL (BASIC OPERATIONS)	36
6-1. Name and function of each operation panel item	36
6-2. Loading sewing data	38
6-3. Setting the program number	38
6-4. Setting the X-scale and Y-scale	39
6-5. Setting the sewing speed	39
6-6. Checking the sewing pattern	40
6-7. Setting the height of the intermittent presser foot	41
7. USING THE OPERATION PANEL (ADVANCED OPERATIONS)	42
7-1. List of advanced functions	42
7-2. Setting memory switches	43
7-3. List of memory switch settings	44
7-4. Using the lower thread counter	45
7-5. Using the production counter	46
7-6. Setting the split number	47
7-7. Using user programs	48
7-8. Using cycle programs	51
7-9. Direct selection (combination table)	53
7-10. X and Y parallel movement of sewing pattern	54
7-11. Clearing memory data (reinitialization)	55
8. USING CF CARDS	56
8-1. Notes on handling CF cards (sold separately)	56
8-2. Structure of a CF card folder	56
8-3. Data read/write mode	57
8-3-1. Reading all sewing data from the CF card at once	58
8-3-2. Writing all sewing data to the CF card at once	59
9. SEWING	60
9-1. Sewing	60
9-2. Using the STOP switch	61
9-3. Using the thread wiper switch	61
10. CLEANING	62
10-1. Cleaning the rotary hook	62
10-2. Draining the oil	62
10-3. Checking the regulator	62
10-4. Cleaning the control box air inlet ports	63
10-5. Cleaning the eye guard	63
10-6. Checking the needle	63
10-7. Lubrication	63
11. STANDARD ADJUSTMENTS	64
11-1. Adjusting the thread take-up spring	64
11-2. Adjusting arm thread guide R	65
11-3. Adjusting the needle bar height	65
11-4. Adjusting the needle bar lift amount	66
11-5. Adjusting the driver needle guard	66
11-6. Adjusting the needle clearance	67
11-7. Adjusting the inner rotary hook and hook stopper overlap	67
11-8. Adjusting the rotary hook lubrication amount	67
11-9. Adjusting the position of the movable knife	68
11-10. Replacing the movable and fixed knives	71
11-10-1. Installing the feed plate	72
11-11. Adjusting the thread wiper	72
11-12. Presser foot installation position	73
11-13. Changing the intermittent stroke	73
11-14. Adjusting the work clamp lift amount	75
11-15. Adjusting the air pressure	75
12. TABLE OF ERROR CODES	76
13. TROUBLESHOOTING	80
14. 7-SEGMENT DISPLAY	84