31
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
Carving Point
Carving Line
①
Upper Shaft Collar
Upper Shaft
Thread
Trimmer Cam
1.7mm
B. How to adjust the link stopper
ⓐ
With the needle bar in its lowest position, check of 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. 50 ]
Thread Trimmer Cam
Thread Trimmer
Connecting Bar
Link Stopper Screw
Thraed Trimming Driving Link
⇒
Thead Trimmer
Connecting Bar
Link Stopper Screw
Nut
Thread Trimmer
Cam Roller
Clearance
Clearance
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
Summary of Contents for SPS/ D-B1254 Series
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