Mitsubishi LS2-190 User Manual

Adjustment
1, General
Since the sewing machine LS2—190 is a version of the standard single-
needle lockstitch machine and equipped with thread trimmer, the con
struction does not differ from the standard one except for the thread
trimmer system and therefore description in this Manual is mainly con
cerned with the thread trimmer,
2, Thread trimmer system
2.1 Mechanism
The thread trimmer construction can be largely divided into four
sections: namely, knives, knife drive mechanism, picker and trimming
actuator, and synchronizer, each of which is of unit construction.
Thanks to the unit construction, each section can be independently
adjusted and installed with ease,
2.2 Cautions on adjustment
A hook shaft cam drive system is employed in the trimmer.
In this drive system, if the machine runs with the roller (cam
follower) engaged in the trimmer cam groove at adjustment of the
sewing machine, for example, the movable knife comes into contact
with the needle and/or feed dog and will be damaged.
Therefore, the roller should enter the cam groove only in normal
trimming cycle,
3, Disassembling each unit
3.1 Knife drive mechanism (cam shaft bracket unit)
3.1.1 Remove the stepped screw (A),
3.1.2 Remove the two screws (B) to remove the stopper plate (C).
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From the library of: Superior Sewing Machine & Supply LLC

Mitsubishi LS2-190 Specifications

General

Brand	Mitsubishi
Model	LS2-190
Category	Sewing Machine
Language	English