Seiko LSW-27BLK User Manual

15
VERTICAL ADJUSTMENT OF NEEDLE BAR POSITION
The exact vertical position of the needle bars is important for their
trouble-free engagement and disengagement, respectively, since their positions
are fixed within the needle bar rock frame (20)—Fig. 23. For the purpose of
making the required fine adjustment of the needle bar position, and eccentric
bushing (5)—Fig. 24—is provided in needle bar connecting link (6).
B) NEEDLE BAR RELEASE MECHANISM
When the needle bar change over lever (1)—Fig. 21—is set to either "L"
or "R" position, the rod end (9) of the selected needle bar, when same is in
its highest position, will contact the underside of selector block (8) causing
said needle bar to become disengaged from its driving mechanism.
OPERATION OF THE NEEDLE BAR CHANGE OVER FRAME
Shifting the needle bar change over lever—Fig. 21—to "R" will cause
the needle bar change over frame to move in direction of the arrow (Fig. 25).
The needle bar change over frame connection, when the needle bar lowers
and was disengaged, is fixed to their normal position as Fig. 25B. At the
same time, the needle bar stops when same reached in its next highest position.
When disengaing the needle bar stop pushing the lever release (4)—Fig.
21—,
the needle bar change over frame and the needle bar change over frame
connection return to their first position. Thereby, the slide block for needle
stop separates from the needle bar stopping stud and returns to their first
position.
Then, the needle bar connecting stud incorporates with the needle bar in
its highest position and becomes normal twin needle operation.
W
Fig. 25
From the library of: Superior Sewing Machine & Supply LLC

Seiko LSW-27BLK Specifications

General

Brand	Seiko
Model	LSW-27BLK
Category	Sewing Machine
Language	English