HIGHLEAD GC20688-BDC, Instruction Manual

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(4) Loosen the bolt 4.
(5) Set the plunger 2 to the position where it projects as
far as possible to the left.
(6) Turn the machine pulley to move the roller 6 of the
driving knife arm to the outermost side (right side) of the
thread trimmer cam 5.
(7) Move the roller 6 so that the clearance between the
outermost side (right side) of the thread trimmer cam 5 and
the roller 6 is 0.1mm, and then tighten the bolt 4.
32) Adjusting the thread trimming timing
The center of the pin 1, the center of the reference hole
3 an
point on the pulley and
ey until the white point on the
e belt cover are in a straight line.
(4) Turn the thread trimmer cam 2 to adjust the position of
e thread trimmer cam 2 so that the center of the pin 1, the
enter of the reference hole 3 and the center of the roller 4 of
e driving knife arm are in a straight line.
(5) Tighten the bolts 5.
33)Safety clutch
The standard safety clutch 2 in the lower toothed belt wh
amaged in case of thread jamming in the hook path. When the
out.
d the center of the roller 4 of the driving knife arm
should be in a straight line when the thread take-up lever is at
the highest position. (The white the
point on the belt cover are in a straight line.)
(1) Turn the machine pull
pulley and the point on th
(2) Overturn the arm.
(3) Loosen the three bolts 5
th
c
th
eel protects the hook from being displaced or
hook is blocked, the safety clutch 2 must come d
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