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11) Adjusting the Trimming Parts
A. Setting the position of the trimming Cam
Set the upper shaft collar and the trimming cam 2.5mm apart from each other and place the trimming cam
where the trimming cam carving line accords with the upper shaft carving point. Then, tighten screw ①.
[ Fig. 51 ]
[ Caution ]
If the trimming cam is not placed in the right position, the trimming operation may not be made correctly or the
machine may be lock.
Upper Shaft
Upper Shaft Collar
①
2.5mm
Thread Trimmer Cam
Carving
Line
Carving Point
Upper Shaft
→
→
B. How to adjust the link stopper
ⓐ With the needle bar in its lowest position, check if there is enough clearance between the trimming cam roller
and both ends of the trimming cam when the trimming drive link is pushed in the direction of the arrow()
within the trimming cam moving part.
ⓑ Make the end of the link stopper screw touch part of the trimming link stick when the trimming cam roller is
inserted into the trimming cam moving part. Then, tighten the nut.
[ Fig. 52 ]
[ Caution ]
If there is not enough clearance between the trimming cam roller and both ends of the trimming cam,
trimming may
not be operated correctly or the machine may be lock when beginning to sew or trimming.
[ Caution ]
If the position is not set appropriately, the return to the previous point after trimming may be delayed and the first
stitch may not be tight enough.
Thread Trimmer
Cam Roller
Clearance
Clearance
Thread Trimmer Cam
Thread Trimmer
Connecting Rod
Thread Trimmer Connecting Rod
Link Stopper Screw
Link Stopper Screw
Thread Trimming Driving Link
Nut
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