User Guide

Contents
6 Parts list 21
6.1 Machine Bed Frame Components 22
6.2 Machine Cover Components (1) 24
6.3 Machine Cover Components (2) 26
6.4 Crank Shaft Drive Components 28
6.5 Thread Tension Components 30
6.6 Thread Guide and Thread Take-up Components (1) 32
6.7 Thread Guide and Thread Take-up Components (2) 34
6.8 Thread Guide and Thread Take-up Components (3) 36
6.9 Needle Bar Components (1) 38
6.10 Needle Bar Components (2) 40
6.11 Needle Plate and Needle Guard Components 42
6.12 Upper Looper Components 44
6.13 Lower Looper Components 46
6.14 Chain Stitch Looper Components (1) 48
6.15 Chain Stitch Looper Components (2) 50
6.16 Differencial Feed Components 52
6.17 Feed Dog Components 54
6.18 Knife Drive Components 56
6.19 Presser Foot Components 58
6.20 Lubrication Components (1) 60
6.21 Lubrication Components (2) 62
6.22 Silicon Oil Reservoir Components 64
6.23 Exclusive Parts List for 321K series 66
6.24 Thread Stand Components 68
6.25 Accessories 70
6.26 Machine Support Plate For Semi-Submerged Components 72
6.27 Specific Parts for 321D-251 Hand 321K-251H 73
6.28 Optional Parts 74
6.29 Back Latch Components 76
6.30 Vacuum Suction & AFL Device (Option parts) 78
6.31 ChainCutter DeviceComponents 80
7 Gauge Parts List
81