7.3.4.1 Preparing the sewing unit and feed clamps
Caution: danger of injury
The light barriers are adjusted with the machine switched on.
The utmost care must be taken when carrying out adjustments and
function-testing.
CAUTION: danger of breakage
It is essential for the folder station to be swivelled out for the light
barriers to be adjusted.
–
Swivel out the folder station 1.
–
Lay material under the feed clamps.
–
Run the test program.
Close the flap clamp and folding plates,
the feed clamps descend.
–
Pull the feed clamps forwards.
–
Align the light barriers to the center of the reflecting foils 2.
The area from seam start to seam end must be checked on the
clamp.
Orange LED: on = reflection available
off = no reflection
Green LED: on = stable switching signal
If the green LED does not shine, the light-barrier should be
cleaned, readjusted, replaced or a new reflecting foil should be
fitted.
Proceed as follows:
- Attach a reflecting strip 2 on the left and on the right over the
whole length so that a strip of approx. 2 mm remains uncovered
in the middle.
- Push the feeding clamps to the back until they are centrally
underneath the light barriers.
- Loosen screws 3 and align the light barriers to the strip of the
reflecting foils 2. Tighten screws 3.
- Push the feeding clamps in the rear and front position and check
the alignment of the light barriers.
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