Timing Of The Lowerlooper - Brother 2340CV Service Manual

HOW TO ADJUST...... Timing of the double chain looper
Presser bar
Gauge Needle bar
Gauge
Spacer
3.0 mm
3
5
4
Needle clamp
2
How to use the gauge
1. Raise the presser bar and remove the presser foot and presser foot holder.
2. Lower the needle bar to its lowest position.
3. Position the spacer and gauge and tighten the screw.
4. Remove the spacer.
5. Raise the needle bar until the needle clamp contacts the gauge. Continue making the adjustment described on the
previous page. (The spacer is 3.0 mm thick.)
6