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Selection of thread
3-1-3
1. Selection of upper thread.
<Description>
Please select considering cloth, design of pattern and flavour etc.
<Thickness>
Please refer to [Relation between needle and upper thread 3-1-4].
<Twist>
Z twisted thread is to be used.
(As rotary hook turns left- wise, Z twisted thread can prevent loosening of twist)
Z-twisted S-twisted
(Left - twisted) (Right - twisted)
2. Selection of lower thread.
Basically please use cotton thread (#80-120), #120 is recommendable.
Pay attention to the following in selection.
# Thickness should be equal.
# When it is lightly stretched. it doesn't break easily.
# In process of time, it doesn't get inferior.
Commercially available paper bobbin can be used, but please select thread with
thickness corresponding to cotton thread (#80-120).
Summary of Contents for HCS-1201-30
Page 12: ...12 204 2 Outer covers 2 1 Removal of outer covers ...
Page 81: ...81 204 3 4 Needle bar change unit 3 4 1 Fixing of needle bar change unit ...
Page 124: ...124 204 4 Electricity 4 1 Circuit board related parts 4 2 Sensors ...
Page 153: ...153 204 5 4 Revolution 5 4 1 Adjustment of revolution ...
Page 164: ...164 204 5 7 Detection of power outage 5 7 1 Adjustment of power outage detection ...
Page 168: ...168 204 Electrical connection diagram 6 1 1 ...
Page 169: ...169 204 List of electrical connection diagrams 6 1 2 ...
Page 170: ...170 204 6 2 Reference diagram for wiring 6 2 1 Reference diagram for wiring AC Iine ...
Page 171: ...171 204 Reference diagram for wiring AC Iine 6 2 1 ...
Page 173: ...173 204 VFNC1 S Connection of inverter and setting of parameter 6 3 1 ...
Page 174: ...174 204 FR S510W Connection of inverter and setting of parameter 6 3 2 ...
Page 198: ...198 204 7 3 Error 7 3 1 Error and measure ...
Page 202: ...202 204 7 4 Reference date 7 4 1 Tables for timing adjustment value ...