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1. PRECAUTIONS BEFORE STARTING OPERATION······································································ 1
1) Safety precautions ···························································································································· 1
2) Precaution before Starting Operation ···························································································· 1
3) Precaution for Operating Conditions ···························································································· 1
2. PREPARETION BEFORE START TO OPERATE ··········································································· 1
Adjustment of needle bar stop position ························································································· 1
3. PRECAUTIONS FOR STARTING TO OPERATE ············································································ 2
1) Lubrication ····································································································································· 2
2) Adjustment of the amount of oil for hook ····················································································· 2
3) Periodical cleaning ··························································································································· 2
4) Precaution for detector ···················································································································· 3
4. HOW TO USE THE MACHINE ·········································································································· 3
1) How to attach needle ······················································································································· 3
2) Threading ········································································································································· 3
3) Adjusting of stitch length & reverse lever ··················································································· 4
4) Adjustment of the thread guide ······································································································ 4
5) Adjusting of pressure of presser foot ····························································································· 5
6) Adjusting the thread tension··········································································································· 5
7) Adjustment of upper thread tension ······························································································ 5
8) Adjustment of lower thread tension ······························································································· 5
9) Thread wiper (for machine equipped with thread wiper) ·························································· 6
10) How to wind the lower thread on the bobbin ················································································ 6
11) Adjustment of feed dog height and inclination ············································································· 6
12) Adjustment of remaining needle thread length after thread trimming ······································ 7
13) Adjustment of feed timing ·············································································································· 7
14) Adjustment of forward/backward stitch length ············································································ 7
15) Adjustment of knife engagement ···································································································· 8
16) Installing of the neddle plate ··········································································································· 9
17) Cloth cutting knife ··························································································································· 9
18) Other replacement parts ··············································································································· 10
5. SPECIFICATIONS ······························································································································ 10
6. PARTS CATALOG ················································································································· ·············· 11
A) Arm bed & Its accessories ············································································································· 11
B) Needle bar and thread take-up mechanism ················································································· 14
C) Feeding and feed lifting mechanism ····························································································· 16
D) Stitch regulator mechanism ·········································································································· 18
E) Knife mechanism ··························································································································· 22
F) Presser foot mechanism ················································································································· 24
G) Thread trimmer mechanism ········································································································· 27
H) Touch back mechanism & Detector mechanism ········································································· 30
I) Motor mechanism ·························································································································· 32
J) Oil lubrication mechanism ············································································································ 34
K) Accessories······································································································································ 36
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