HIGHLEAD GC20688 Series, Instruction Manual And Parts List

Page: 18 / 62

—
17
—
(3) Loosen the bolt 6.
(4) Move the driving knife 1 so that the distance between the blade of the fixed knife 2 to the end of the
driving knife 1 is 0.5 mm, and then tighten the bolt 6.
31) Adjusting the driving knife operating
position
The standard distance from the left side of
driving knife arm 1 to the screw tip on the plunger 2
of the thread trimming solenoid is 1 mm. The
clearance between the outermost side (right side) of
the thread trimmer cam 5 and the roller 6 of the
driving knife arm should be 0.1 mm.
(1) Overturn the arm.
(2) Loosen the bolt 3
(3) Turn the plunger 2 of the thread trimming
solenoid so that the distance from the left side of
driving knife arm 1 to the screw tip on the plunger 2
of the thread trimming solenoid is 1 mm, and then
tighten the bolt 3.
(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.