P
Installation of the movable knife
1 . Initial position of the movable knife
( 1 ) Turn the pulley and stop it at the position where the needle comes to the lowest.
( 2 ) Put the cam roller into the thread trimmer cam groove by pushing the cam follower crank.
( 3 ) In this condition, turn the pulley and stop it at the position where the black mark point on the
arm meets the white mark point on the pulley.
Set the cam follower crank at this position with a screwdriver temporarily preventing the cam
roller coming out from the cam groove.
( 4 ) Loosen bolt Ⓐ.
( 5 ) Adjust so that the tip of the movable knife is hidden 0 to 0.5 mm in the fixed knife, as shown in
the figure and tighten bolt Ⓐ.
2 . Gap between the movable knife and the lug of
inner hook
( 1 ) Turn the pulley and stop it at the position
where the needle comes to the lowest.
( 2 ) While pushing the cam follower crank, turn
the pulley and stop it at the position where
the movable knife move to the position as
shown in the figure.
( 3 ) Turn the inner hook and adjust so that the
gap between the movable knife and the
lug of inner hook is about 0.5 mm (screws
Ⓐ and Ⓑ should be loosened for this
adjustment).
Movable knife
Lug of inner hook
Inner hook
Approx. 0.5mm
Screw Ⓐ
Screw Ⓑ
HOW TO USE
Thread trimmer rocking crank
Bolt Ⓐ
Pitman rod
Thread trimmer cam
Cam roller
Cam follower crank
Movable knife
0 to 0.5 mm
Fixed knife
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