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Brother International BAS-326G PS Instruction Manual - English - Page 81

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12. TROUBLESHOOTING Problem Cause Remedy Reference Upper thread trailing Thread take-up spring tension and Adjust the tension and height of the length is irregular. height are incorrect. thread take-up spring. P. 54 Sub tension is too weak. Turn the sub tension nut to adjust the tension. P. 23 Fixed knife is not cutting cleanly. Sharpen the fixed knife or replace it with a new one. Lower thread is protruding from the top of the material. Thread take-up spring tension is too strong. Insufficient thread take-up amount. Adjust the tension of the thread take-up spring. Adjust the position of arm thread guide R. Hitch stitch sewing range is too great. Lower thread tension is too weak. Adjust the lower thread tension. P. 59 P. 54 P. 53 P. 23 Lower thread is threaded incorrectly. Pass the lower thread through the window of the inner rotary hook. P. 22 Sewing speed is too high. Reduce the sewing speed. P. 28 Needle is incorrectly installed. Install the needle correctly. Upper thread position is incorrect. Needle is shaking. Select the correct intermittent presser foot. Grind the cylinder of the intermittent presser foot so that it does not touch the thread. Replace the needle with one with a higher count. Thread trailing length underneath the material is too short. Sewing machine does not operate when the power is turned on and the foot switch is depressed. Fixed knife position is too close to the needle hole plate. Machine head switch does not work. Move the fixed knife position away from the needle hole plate. Check if the machine head switch cord is disconnected. Adjust the position of the machine head switch. If the machine head switch is malfunctioning, replace it with a new one. P. 19 P. 59 P. 11 P. 8 P. 53 BAS-326G PS 72

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	12
3-2. Installing the control box	13
3-3. Installing the oil pan	13
3-4. Installing the machine head	14
3-5. Tilting the sewing machine head	18
3-6. Installing the operation panel	18
3-7. Installing the pneumatic unit	19
3-8. Connecting the cords	20
3-9. Connecting the ground wire	22
3-10. Connecting the power cord	23
3-11. Installing the cotton stand	23
3-12. Installing the eye guard	24
3-13. Installing the motor cover	25
3-14. Lubrication	26
3-15. Installing the machine head fixing bolt	27
4. PREPARATION BEFORE SEWING	28
4-1. Installing the needle	28
4-2. Threading the upper thread	28
4-3. Foot switch operating method	29
4-4. Winding the lower thread	30
4-5. Installing the bobbin case	31
4-6. Thread tension	32
4-6-1. Lower thread tension	32
4-6-2. Upper thread tension	32
4-7. Home position detection	33
5. USING THE OPERATION PANEL(BASIC OPERATIONS)	34
5-1. Name and function of each operation panel item	34
5-2. Loading sewing data	36
5-3. Setting the program number	36
5-4. Setting the X-scale and Y-scale	37
5-5. Setting the sewing speed	37
5-6. Checking the sewing pattern	38
5-7. Setting the height of the intermittent presser foot	39
6. USING THE OPERATION PANEL(ADVANCED OPERATIONS)	40
6-1. List of advanced functions	40
6-2. Setting memory switches	41
6-3. List of memory switch settings	42
6-4. Using the lower thread counter	43
6-5. Using the production counter	44
6-6. Setting the split number	45
6-7. Using user programs	46
6-8. Using cycle programs	49
6-9. Direct selection (combination table)	51
6-10. X and Y parallel movement of sewing pattern	52
6-11. Clearing memory data (reinitialization)	53
7. USING CF CARDS	54
7-1. Notes on handling CF cards (sold separately)	54
7-2. Structure of a CF card folder	54
7-3. Data read/write mode	55
7-3-1. Reading all sewing data from the CF card at once	56
7-3-2. Writing all sewing data to the CF card at once	57
8. SEWING	58
8-1. Sewing	58
8-2. Using the STOP switch	59
8-3. Using the thread wiper switch	59
9. CLEANING	60
9-1. Cleaning the rotary hook	60
9-2. Cleaning the control box air inlet ports	60
9-3. Draining the oil	61
9-4. Cleaning the eye guard	61
9-5. Checking the needle	61
9-6. Lubrication	61
10. STANDARD ADJUSTMENTS	62
10-1. Checking the machine head switch	62
10-2. Arm thread guide R	62
10-3. Thread take-up spring	63
10-4. Adjusting the needle bar height	63
10-5. Adjusting the needle bar lift amount	64
10-6. Adjusting the needle guard	64
10-7. Adjusting the needle clearance	65
10-8. Adjusting the inner rotary hook and hook stopper overlap	65
10-9. Rotary hook lubrication amount	65
10-10. Adjusting the position of the movable knife	66
10-11. Replacing the movable and fixed knives	68
10-11-1. Installing the feed plate	69
10-12. Adjusting the thread wiper	70
10-13. Intermittent presser foot installation position	70
10-14. Changing the intermittent stroke	71
10-15. Adjusting the work clamp lift amount	73
10-16. Adjusting the air pressure	73
11. TABLE OF ERROR CODES	74
12. TROUBLESHOOTING	78
13. 7-SEGMENT DISPLAY	82

Match case Limit results 1 per page

12. TROUBLESHOOTING

BAS-326G PS

Problem

Cause

Remedy

Reference

Thread take-up spring tension and

height are incorrect.

Adjust the tension and height of the

thread take-up spring.

P. 54

Sub tension is too weak.

Turn the sub tension nut to adjust the

tension.

P. 23

Upper

thread

trailing

length is irregular.

Fixed knife is not cutting cleanly.

Sharpen the fixed knife or replace it

with a new one.

P. 59

Thread take-up spring tension is too

strong.

Adjust the tension of the thread take-up

spring.

P. 54

Lower

thread

protruding from the top

of the material.

Insufficient thread take-up amount.

Adjust the position of arm thread guide

P. 53

Lower thread tension is too weak.

Adjust the lower thread tension.

P. 23

Lower thread is threaded incorrectly.

Pass the lower thread through the

window of the inner rotary hook.

P. 22

Sewing speed is too high.

Reduce the sewing speed.

P. 28

Needle is incorrectly installed.

Install the needle correctly.

P. 19

Select the correct intermittent presser

foot.

Upper thread position is incorrect.

Grind the cylinder of the intermittent

presser foot so that it does not touch

the thread.

Hitch

stitch

sewing

range is too great.

Needle is shaking.

Replace the needle with one with a

higher count.

Thread

trailing

length

underneath the material

is too short.

Fixed knife position is too close to the

needle hole plate.

Move the fixed knife position away from

the needle hole plate.

P. 59

Check if the machine head switch cord

is disconnected.

P. 11

Adjust the position of the machine head

switch.

P. 8

P. 53

Sewing machine does

not operate when the

power is turned on and

the

foot

switch

depressed.

Machine head switch does not work.

the

machine

head

switch

malfunctioning, replace it with a new

one.