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Editi on 06/2002 S tudent Guide HS - 50 Advance d I 1 1 Pneumat ic Cutter and Emp ty-T ap e Duct 20 F ig. 11 .6 .1 Rem ovi ng /In stal lin g S tat iona ry and M ovab le Bl ade Ke y : 1. St ationary blade 2. F astening of…

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Student Guide HS-50 Advanced I Edition 06/2002
11 Pneumatic Cutter and Empty-Tape Duct
19
à In this position tighten all 4 screws crosswise.
-> Tighten the screws to the correct torque -> see Table, Fig. 11.4.2.
à Perform the appropriate “Final Steps” (see Section 11.6.11).
11.6.2 Turning the Stationary and Movable Blade 180 °
NOTE:
The movable blade has a cutting edge on both sides.
If one cutting edge becomes worn, the blade can still be used by turning it 180° on its vertical axis
and re-installing it.
At the same time, the stationary blade must also be turned 180° on its vertical axis and installed.
If both edges are already blunt, proceed as instructed in Section 11.6.3. 11
11.6.2.1 Removing the Blades
WARNING
Wear thick protective gloves.
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.
Make certain that no one can injure themselves on the dismantled blades standing next to the ma-
chine. 11
à Remove the cutter from the machine, as described in Section 11.6.1.
à Before any further disassembly, fasten the dismantled cutter to the retaining bracket (LH and
RH) with 2 parallel clamps on a flat sturdy work bench or screw it tight on the mounting plate
(Item no.: see Section 11.3) with four M6 socket hex head cap screws
-> see CAUTION in Section 11.6.10.
Edition 06/2002 Student Guide HS-50 Advanced I
11 Pneumatic Cutter and Empty-Tape Duct
20
Fig. 11.6.1 Removing/Installing Stationary and Movable Blade
Key:
1. Stationary blade
2. Fastening of the stationary blade (under the deflector plate):
2 Socket hex head cap screws M6 x 35
3. Articulated joint
4. Screws fastening the articulated joint in the movable blade:
1 Socket hex head cap screws M4 x 25 each, Strength 12.9, Loctite no. 243
5. Movable blade under the tape deflector
6. Direction for removing the movable blade
7. Deflector plate, see also Fig. 11.4.2
Student Guide HS-50 Advanced I Edition 06/2002
11 Pneumatic Cutter and Empty-Tape Duct
21
à Dismantle the deflector plate: four M4 x 8 socket hex head cap screws, see Fig. 11.4.2 -> 13).
à Loosen the screws fastening the stationary blade at left and right (2 screws M4, see Fig. 11.6.1
-> 2).
à Mark the mounting position of the stationary blade (on the blade) with a water-insoluble marker
(-> right end = right).
à Take hold of the stationary blade by its ends and lift it out of the machine.
à Holding the articulated joint with a size 10 open-end wrench (see Fig. 11.6.1 -> 3), loosen the
screws fastening the articulated joint in the movable blade (1 screw each at right and left, see
Fig. 11.6.1 -> 4).
à Push the movable blade in parallel until it is in the mounting position of the stationary blade
(move it towards the PCB conveyor, see Fig. 11.6.1 -> 6):
Using a tool such as a screwdriver, move the blade by alternately prying on the left and right
next to the compressed air cylinder.
à Mark the mounting position of the movable blade (on the blade) with a water-insoluble marker
(right end = right).
à Lift the movable blade out of the cutter in this position.
11.6.2.2 Installing the Blades
WARNING
Wear thick protective gloves.
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
CAUTION
Tighten the screws to the correct torque -> see Table, Fig. 11.4.2.
All parts must be clean before installing. 11
à Wear thick protective gloves !
Make certain that the blades are clean. If they are not, wipe all of their surfaces very carefully
with a clean cloth which has been folded several times.
-> Do not use any grease dissolving agents (see CAUTION text in Section 11.6.3.2).
à Turn the movable blade 180 ° on its vertical axis to the previous marked mounting position:
-> The right-hand end of the blade must now be on the left.
à Insert the movable blade into the cutter in this angle of rotation and push it in parallel back into
the original mounting position.