Table of Contents
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1. NAMES OF MAJOR PARTS ......
3. TABLE AND MOTOR .................
3-1. Table processing diagram ............................... 3
3-2. Motor ............................................................... 4
4. INSTALLATION ..........................
4-1. Installing the machine head ............................ 5
4-2. Ground wire connections ................................ 7
4-3. Installing the pulley cover ................................ 7
4-4. BeIt tension adjustment .................................. 8
4-5. Assembling the cotton stand ........................... 8
4-6. Lubrication....................................................... 9
rotating direction ........................................... 10
SEWING ...................................
5-1. Needles and threads ..................................... 11
5-2. Installing the needles .................................... 11
5-3. Threading the lower threads ......................... 12
5-4. Threading the upper threads ......................... 12
6. SEWING ...................................
6-1. Sewing .......................................................... 13
7. THREAD TENSION ....................
7-1. Adjusting the thread tension ......................... 14
7-2. Presser foot pressure adjustment ................. 14
7-3. Adjusting the stitch length ............................. 15
8. CLEANING .................................
8-1. Daily cleaning ................................................ 16
(every three months) ..................................... 16
CONTENTS
1
9-1. Needle bar height adjustment ....................... 17
2
3
9-3. Needle and looper timing adjustment ............ 19
5
9-5. Needle guard adjustment .............................. 21
9-6. Feed dog height adjustment .......................... 22
9-7. Upper thread take-up guide adjustment ........ 22
9-8. Adjusting the upper thread guide .................. 23
9-9. Tension release shaft adjustment ................. 23
9-11. Installing the lapper ..................................... 24
10. TROUBLESHOOTING ..............
11
13
14
16
DA-927A, DA-928A
forward-back movement ................................ 18
loopers ........................................................... 20
17
25
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