Strobel 3100D-R, Mechanic'S Instructions

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MA_310D-R_3100D-R_A16-3_181015_en
3.7.3 Adjusting the feed movement (Fig. 8)
A t t e n t i o n !
Disconnect machine from the mains!
The eccentric (1) on the main screw must be adjusted in such a way that the
feed starts when the needle point on its way back (by 6 mm feed) is 3 mm past
the centre of the plunger.
With the largest stitch length the feed dog should still have approx. 4 mm air to
the presser plate at its furthest back position. The main piece (2) is drilled on
the main screw, that means that the first grub screw in rotary direction has a
point.
Fig. 8
3.7.4 Adjusting the upper feed (Fig. 2 and Fig. 9)
A t t e n t i o n !
Disconnect machine from the mains!
With a transport path of 5.5 mm, measured at the lower and the upper feed
dog, the lifting movement of the upper feed dog, controlled via the cam (3) (Fig.
2), must be adjusted in such a way that a function compliant sequence of the
reverse points of the movement direction is ensured. The upper transport starts
synchronized with the lower transport.
Depending on whether you work with short or long stitch length, the position on
eccentric bush (1) (Fig. 9)

= 2-5 mm stitch length or

position = 4 - 7 mm stitch length can be adjusted.