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10) Adjusting the parts for trimming
A. Setting the position of the trimming Cam
Set the upper shaft collar and the trimming cam 1.7mm 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. 49 ]
Upper Shaft
Upper
Shaft
Collar
①
1.7mm
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 thetrimming
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. 50 ]
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
→
→
→
→
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.
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.
Caution
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