HIGHLEAD GC20618-1DZ, Инструкция и каталог запасных частей

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Note:To adjust,loosen two thread trimmer cam clamp screws A.
27.ADJUSTMENT OF SCISSORING PRESSURE OF MOVABLE KNIFE
AND FIXED KNIFE
（1）
Loosen the fixed knife bracket clamp bolt A.
（2）
Turn the vertical position adjusting screw B to adjust meshing pressure and then righter the hexagon
socket head cap screw A.
Note:Since excess pressure cause large torque to the thread
trimming mechanism and trimming failure,adjust it so that thread
can be trimmed with minimum pressure.
（3）
Move the movable knife and check that the thread can be
sharply trimmed.
28.SHARPING OF FIXED KNIFE
When the knives dull,the fixed knife should be sharpened as
illustrated in figure.Since it is very difficult to sharpen the movable
knife,replace it with a new one when it dulls .
29.ADJUSTMENT FOR CHANGE OF NEEDLE GAUGE PARTS
（
1
）
Replace the throat plate, feed dog and needle clamp.(Since the throat plate and feed dog are special
parts designed for thread trimming machine, be sure to use those specified by us.)
（
2
）
Lean the machine head backward.
（
3
）
Loosen two connecting link clamp bolts J.