19
Mechanical Adjustment
MODEL: AirThread 2000D
To check:
1. Open the looper cover and the side cover.
2. While pressing the upper knife release knob, turn it
clockwise by half a rotation to deactivate the upper
knife.
3. Turn the handwheel counterclockwise to set the lower
looper to the rightmost position.
4. Place the lower looper height gauge to the lower
looper crank shaft as shown.
5. The tip of the lower looper should match with the
guide line of the gauge (65.7 mm).
If not, adjust the lower looper height position (see next
page).
Side cover
Upper knife
release knob
Press the
dial
Setting mark
To set the upper knife in down position:
To adjust the position of the lower looper (1)
The tip of the lower looper is 65.6 to 65.9 mm from the center of the lower looper crank shaft as shown below.
Tip of the lower looper
Guide line
Lower looper height gauge
Guide line
U groove
65.7 mm
Lower looper height gauge
Lower looper crank shaft
