Lateral Adjustment Of The Thread Trimming Cam; Moving Knife Guide Plate (Upper) - ELNA E9020 Service Manual

(13) Lateral adjustment of the thread trimming cam

1
180˚
• Slightly loosen nut 1.

(14) Moving knife guide plate (upper)

1. Adjust so that the root of the blade section of the guide plate in terms of the root of the blade section of the moving knife enters to the rear by 0.5 mm when
the moving knife starts and travels backward from the rightmost end as shown in the figure.
2. Loosen screw 1 and adjust the longitudinal position so as to align the front end of the square hole in the moving knife guide plate (upper)
with the blade point of the moving knife.
3. Adjust so that the clearance provided between section A of the moving
knife support and the moving knife is 0.02 to 0.07 mm in the state that
the moving knife is fully protruded.
Then tighten screw 1.
How to adjust
2
• Keep pressing 2 with your
finger, turn the sewing
machine by hand.
How to adjust
Position where moving knife
travels to the rightmost end.
3
0.3 to 1 mm
0˚
• Turn 3 and adjust so that the clearance provided
between the moving knife base and the looper is 0.3 to
1 mm when the moving knife travels to the rightmost
end. After the adjustment, tighten nut 1.
Location of components to be adjusted
Moving knife support
A
1
A
Adjustment drawing
3
2
1
0.5 to 1 mm
(Required value is 0.5)
Disassembly
Throat plate
Adjustment drawing
2
1
Align
3
24