Mitsubishi LS2-1180 User Manual

4.2 Thread Trimmer Mechanism
4.2.1 Construction
Fixed blade bracket unit
Thread guide
Fixed blade
Knife base unit
Thread trimmer solenoid
Thread trimmer solenoid unit|'
twist spring
Thread trimmer cam
Coil spring
Movable knife (left)
Knife driving crank Knife driving shaft
Cam follower crank (1)
4.2.2 Cautions on adjustment
Flexible wire
twist spring
Fig. 2 Cam follower crank (2)
A hook shaft cam system is utilized for the thread trimmer drive. Therefore, during the adjustment of
sewing machine, if the sewing machine is rotated one turn with the thread trimmer solenoid in the
operating state (the roller of cam follower crank (2) is engaged with the threadtrimmer cam), the movable
knife makes contact with the needle, resulting in damage. Be sure to bring the solenoid into the operating
state only during a normal thread trimming cycle (Needle DOWN position to UP position).
4.2.3 Installation of knife base and fixed blade bracket unit
4.2.3.1 Knife base unit
(1) As shown in Fig. 3, fit the knife base unit to the
hook shaft bushing (left) and fix with the screws
4.2.3.2 Fixed blade bracket unit
(1) As shown in Fig. 4, install the fixed blade bracket
unit with the hook positioner dismounted, and
then fix with the screws ® .
8
inlt /
Knife base unit
Hook shaft bushing (left)
Rg.3
Fixed blade bracket unit
Fig. 4
From the library of: Superior Sewing Machine & Supply LLC

Mitsubishi LS2-1180 Specifications

General

Brand	Mitsubishi
Model	LS2-1180
Category	Sewing Machine
Language	English