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S tud ent Guid e HS-50 A dvanced I E dition 06/2 002 1 1 P neumatic Cutt er and Empty- T ape Du ct 41 NO TE: F or the adjustmen ts it is the best, if a second person is avai lable 11 à W ith the f eeler gau ge, check: Th…
Edition 06/2002 Student Guide HS-50 Advanced I
11 Pneumatic Cutter and Empty-Tape Duct
40
11.6.8 Exchanging the Empty-Tape Duct Assembly
If the empty-tape duct has been damaged (e.g., dented in) due to the component table being
moved into the machine improperly, you can exchange it in its entirely or just the faulty compo-
nents (baffle inside / outside, reject box).
WARNING
You might cut yourself on the blades and the tape deflector.
Never reach into the pneumatic cutter from below or into the empty-tape duct from above. 11
à Turn the machine and then the flow of compressed air ON.
à Disconnect the movable component changeover table from the machine and move it out of the
machine.
à Turn the machine OFF, disconnect the machine from the mains and turn off the flow of com-
pressed air at the compressed air. Actuate the needle valve on the compressed air unit to bleed
the compressed air lines (see DANGER text in Section 11.1).
à Loosen the screws fastening the nozzle changer, lift it up somewhat and hold it in this position.
à Unplug the electrical cable and the pneumatic hose of the nozzle changer.
à Carefully put the nozzle changer down.
à Loosen the screws fastening the empty-tape duct assembly (see Fig. 11.4.1 -> 11, 9) and lift
the duct out of the machine.
à If you only want to exchange the faulty baffle inside/outside and/or the reject box, proceed as
indicated in Section 11.6.9.
à Screw the "empty-tape duct assembly" (Item no.: see Section 11.2) on the machine base (2
screws each on left and right, M4 x 16).
-> Tighten the screws to the correct torque -> see Table in Fig. 11.4.2.
WARNING
The following check can only be conducted from the bottom of the cutter after it has been installed
in the machine. Wear thick protective gloves; there is a risk of injury from the blades and the edge
of the tape deflector. 11
11
11
11
Student Guide HS-50 Advanced I Edition 06/2002
11 Pneumatic Cutter and Empty-Tape Duct
41
NOTE:
For the adjustments it is the best, if a second person is available 11
à With the feeler gauge, check:
The distance between the empty-tape baffle and the leading edge of the tape deflector must
again be within the TARGET distance 1.0 to 1.5 mm over the entire length (see Fig. 11.4.3 ->
Detail).
If the gap is not OK.
à Loosen the screws holding the empty-tape duct once again and correct the position of the
duct in the holes.
à If this is not enough, you may assume that the cutter was already not in the optimal position
before the empty-tape duct was exchanged:
In this case, correct the position of the cutter in the slots of the retaining brackets in the man-
ner described for the installation of the cutter in Section 11.6.1.2.
If the gap is OK.
à Perform the appropriate “Final Steps” (see Section 11.6.11).
11.6.9 Exchanging Baffles and / or Reject Box (Profile)
The "empty-tape duct assembly" has already been removed, as described in Section 11.6.8.
à Undo the self-tapping M4 screws fastening the baffle or reject box that you want to dismantle
(see detail in Fig. 11.4.3, 13 to 18).
à Insert the new baffle inside/outside and /or the new reject box (Item no.: see Section 11.2) and
fasten it with the self-tapping screws (see Fig. 11.4.3 -> 13 to 18).
à Install the empty-tape duct assembly and check the gap between the leading edge of the tape
deflector and the “empty-tape baffle, inside", as described in Section 11.6.8.
à Perform the appropriate “Final Steps” (see Section 11.6.11).
Edition 06/2002 Student Guide HS-50 Advanced I
11 Pneumatic Cutter and Empty-Tape Duct
42
11.6.10 Exchanging the Rubber-Metal Vibration Damper
For this step, the cutter is lifted out of the machine.
WARNING
Wear thick protective gloves. 11
CAUTION
Before you exchange the rubber-metal vibration dampers, the disassembled pneumatic cutter
must be screwed to the mounting plate (Item no.: Section 11.3) before removing any part.
If this prefabricated plate is not available, the rubber-metal vibration dampers have to be ex-
changed at the Siemens factory because, if this plate is not used, it is impossible to reassemble
the blades/tape deflector without distortion.
The cutter must be completely assembled before it is removed from the plate (all screws tightened:
see Fig. 11.4.2).
Tighten the screws to the correct torque -> see Table, Fig. 11.4.2. 11
NOTE:
In the case of a problem, all 4 rubber-metal vibration dampers are always exchanged. 11
à Turn the machine and then the compessed air ON.
à Disconnect the movable component changeover table from the machine and move it out of the
machine.
à Turn the machine OFF, disconnect the machine from the mains and turn off the flow of com-
pressed air at the compressed air unit. Actuate the needle valve on the compressed air unit to
bleed the compressed air lines (see DANGER text in Section 11.1).
à Remove the pneumatic cutter, as described in Section 11.6.1.1.
à Note the CAUTION text above.
à Before any further disassembly, place the dismantled cutter so that the retaining brackets (LH
and RH) are on the prefabricated mounting plate (Item no.: see Section 11.3) and screw it tight
with four M6 socket hex head cap screws.
à Mark the mounting position on the stationary blade (left end must remain on the left).
à Remove the stationary blade, as described in Section 11.6.2.