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CONTENTS
1. NAMES OF MAJOR PARTS ................................. 1
2. MACHINE SPECIFICATIONS ............................... 3
3. OPTIONAL PARTS .............................................. 11
4. MOTOR ............................................................... 15
5. INSTALLATION .................................................. 17
5-1. Processing the work table .................................. 18
5-2. Installing the machine head support ................. 21
5-3. Ground Wire Connections .................................. 22
5-4. Installing the belt cover ...................................... 22
5-5. Installing the machine head .............................. 23
5-6. Installing the belt ................................................. 23
5-7. Installing the presser lifter pedal ....................... 24
5-8. Installing the cotton stand .................................. 24
5-9. Lubrication ........................................................... 25
5-10. Checking the machine pulley rotating direction .. 27
6. PREPARATION BEFORE SEWING ..................... 28
6-1. Needles ................................................................ 28
6-2. Installing the needle ........................................... 29
6-3. Threading ............................................................ 30
6-4. Using the needle thread cooler ......................... 33
6-5. Adjusting the stitch length ................................. 33
6-6. Locking the stitch length setting ........................ 35
6-7. Adjusting the differential feed ratio (-00D1) .... 36
7. SEWING .............................................................. 37
7-1. Sewing speed ...................................................... 38
7-2. Sewing ................................................................ 38
8. ADJUSTING THE THREAD TENSION ............... 41
8-1. Thread tension ................................................... 41
8-1-1. Adjusting the needle thread tension ....... 42
8-1-2. Adjusting the looper thread tension ....... 43
8-1-3. Using the needle thread guard ................ 45
8-1-4. Needle thread take-up position ............... 47
8-1-5. Middle thread guide position ................. 48
8-1-6. Looper thread take-up thread guide position .... 48
8-1-7. Looper thread take-up position ............... 49
8-1-8. Looper thread guide F and thread guide
positions ................................................... 50
8-2. Adjusting the presser foot pressure ................. 51
9. CLEANING .......................................................... 52
9-1. Daily cleaning procedures .................................. 53
9-2. Changing the lubrication oil (every three months) ... 54
9-3. Replacing the oil filter (every six months) ........ 55
10.STANDARD ADJUSTMENTS ............................ 56
10-1. Removing parts which need to be removed
before adjustment ............................................... 57
10-1-1. Presser foot ............................................. 57
10-1-2. Feed dog .................................................. 58
10-2. Adjustments ........................................................ 59
10-2-1. Adjusting the height of the needle bar .. 59
10-2-2. Needle and looper positions ................. 60
10-2-3. Adjusting the needle and looper timing .. 62
10-2-4. Adjusting the rear needle guard ............ 63
10-2-5. Needle and rear needle guard timing ... 66
10-2-6. Adjusting the front needle guard
(-0012, 0013, 00P3, 0014, 00P4, 0015) .... 66
10-2-7. Adjusting the feed dog height ............. 69
10-2-8. Adjusting the feed dog angle ................ 71
10-2-9. Adjusting the presser foot height ........73
10-2-10. Needle and looper forward/back
movement timing ................................. 74
10-2-11. Adjusting the forward-backward
stroke of the looper ..............................75
10-2-12. Adjusting the lapper position ............. 76
11. PULLER ............................................................... 77
11-1. Using the puller ................................................... 77
11-2. Adjusting the puller pressure............................. 77
11-3. Adjusting the puller feed amount ..................... 78
11-4. Adjusting the puller position ............................. 81
12.INSTALLING OPTIONAL PARTS ....................... 82
12-1. Installing the feeding presser foot (-00D1) ........83
12-2. Replacing the lapper
(-0012, 0013, 00P3, 0014, 00P4) ......................... 88
12-3. Installing the narrow pitch feed dog (-00D1) .... 88
12-4. Installing the 9.5-mm lap seam gauge ............. 89
13. TIMING BELT REPLACEMENT .......................... 93
14. TROUBLESHOOTING ......................................... 97
DB-2610 (English)
