SunStar SPS/A-1811 SERIES, User Manual

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B. How to adjust the link stopper
ⓐ
With the needle bar in its lowest position, check if there is enough space 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. 43 ]
[ Caution ]
If there is not enough space between the trimming cam roller and both ends of the trimming cam, trimming may
not be operated correctly or the machine may be struck 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.
10) 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. 42 ]
[ Caution ]
If the trimming cam is not placed in the right position, the trimming operation may not be made correctly ir the
machine may be struck.
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
Upper Shaft
Upper Shaft Collar
①
2.5mm
Thread Trimmer Cam
Engraved Line
Engraved Line
Upper Shaft
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