Table of Contents
Advertisement
7) Adjusting the opening amount of the button clamp jaw levers
Roller
Clamp release
arm
Hexagon socket
head bolt
8) Adjusting the height of the button clamp
Hexagon socket
head bolt
Feed plate
Button supporting
plane
Work clamp hook
Button clamp
jaw lever
10 to 11 mm
Top surface of
set pin
This sewing machine has been designed to make the
button clamp jaw levers automatically open to release
the finished button at the very moment when the button
has been sewing on the material. The opening amount
of the button clamp jaw levers to release the button
can be adjusted. Manually turn the manual rotating
shaft, and the clamp release arm will move and button
clamp jaw lever will open. Adjust the position of the
clamp release arm by loosening the hexagon socket
head bolt so that a clearance of 1 to 2 mm is provided
between the button and the button clamp jaw lever
when pressing the roller away from you until it will go
no further. After the adjustment, tighten the hexagon
socket head bolt. If the clamp jaw lever from the sewing
start, the button clamping force will be insufficient
resulting in button setting failure or needle breakage.
On the other hand, if the clamp release arm is
positioned too far from the button clamp jaw lever, the
finished button may not be automatically released from
the button clamp jaw lever. So be careful.
When the sewing machine is in its stop-motion state
and the button feeder runs idle, the standard distance
of 11 mm should be provided between the button face
of the button clamp jaw lever and the top surface of
the feed plate of the sewing machine.
Loosen the hexagon socket head bolt, and turn the
work clamp vertical hook which is an eccentric shaft
until the button clamp is correctly positioned. Then
tighten the bolt. The standard height of the button clamp
is 11 mm as stated above. And, in principle, the button
supporting plane should be flush with the top surface
of the set pin. It would be better to slightly adjust the
height of the button to be used. The button should ne
placed in the button clamp jaw lever without fail.
61
−
−
Advertisement
Table of Contents
