Beisler 100-54 - Manual (Page 74)

3-18
3.4 Top threat cutter (Beisler sewing
head)
The toip threats will be caught by the top threat catcher
after the sewing during the clamp drives to the mitre
cutting.
The threats will first be clamped on the top side of the
catcher and then cut on the backside. The threat clamp
must hold the threats during the first stitches of the seam
start to assure a clean sewing image at seam start.
3.5 Height of top threat catcher
A distance (A) of 3-4 mm must be present between sli-
ding plate (2) and catcher (3) when the threat catcher
cylinder (1) is driven out.
For adjustment loosen the fixing screws (4) of the cylin-
der and move him until the correct height is present.
Tighten the screws (4) again.
ATTENTION
The enabled center knife may not get contact with the
top threat catcher!
3.6 Center knife adjustments
3.6.1 Switching on
The center knife is pushed down during the sewing pro-
cess with the help of the cylinder Y3 (1). The the pin at
cylinder Y49 (2) takes over the locking of the center kni-
fe.
3.6.2 Switching off
As soon as the seam end has been reached the center
knife will be switched off. This can be delayed by an
entering in the control.
The mechanical switching off is done by a withdrawal of
the locking pin at cylinder Y48 (2). This allows the pres-
sure pole of the center knife to be pulled upwards by the
pulling spring.
3.6.3 Safety initiator at the center knife pole
During center knife switched off, the diode at the initiator
(3) must be lighted.
3.6.4 Depth adjustment of the safety initiator
The safety initiator (3) must be mounted in a distance of
0.3 - 0.5 mm to the center knife pole.
To adjust it loosen the fixing nut of the initiator (4) and
turn it in until it has contact to the center knife pole. Now
turn it out for half a rev and tighten the fixing nut (4) in
this position.