F5 SERVICE MAUNAL.pdf - 第236页
7 Components Table SIPLACE 80 S-20/F4 Service Manual 7.6 Empty Tape Cutting Unit and Empty Tape Channel Edition 03/97 7 - 34 7.6.6 Checking and R eplacing the Cutter Wheel and Cutter Strip Carry out this che ck if the ta…
SIPLACE 80 S-20/F4 Service Manual 7 Components Table
Edition 03/97 7.6 Empty Tape Cutting Unit and Empty Tape Channel
7 - 33
7.6.3 Replacing Cables Y637 and Y638
● Pull out plug X3ak on the underside of the tape cutting unit and remove the cover from the cable duct.
Undo the cable lacings. Pull off the push-on sleeves (there may be a soldered connection, see Fig. 7.6.3)
at the motor and limit switches and disconnect the wiring at the solenoid valve (see Fig. 7.6.3).
● Connect the new cable Y637 making sure the polarity is correct (Plan 1710460-Y0637-...-L- .. or Y0638).
● The connection of the ceramic capacitor at the motor (push-on or soldered) is shown in Fig. 7.6.3. The
spare cable Y637 is inclusive of ceramic capacitor.
● Removal of cable Y638: pull off the push-on sleeve from the "left-hand limit switch" and undo the socket-
head cap screw on the underside of the support.
● Restore all cable lacings to their previous position. Note that the connections must not be under tensile
stress. Refit the cable duct cover.
● Reconnect the plug connection X3ak.
● Carry out the "Concluding work" as described at the end of this section.
7.6.4 Replacing the Left-hand or Right-hand Limit Switch
CAUTION OO
Do not reach into the area of the cutter strip and cutter wheel: danger of physical injury !
● The components changeover table has already been removed from the machine in the course of fault
location (see above).
● Pull the push-on receptacles off the defective limit switch and undo the screws retaining the limit switch
(2 socket-head cap screws M3).
● First screw the new limit switch up only a little and push on the push-on receptacles making sure that the
polarity of the wires is correct (see Fig. 7.6.1) .
● Adjust the cutting stroke by correcting the limit switch position, as described below.
7.6.5 Checking and Setting the Cutting Stroke
Check the cutting stroke (see Fig. 7.6.1) if the tapes of the outside tracks (1/120) are not being cut properly or
the limit switches have been replaced.
● If you have not already done so, select now from within the track error menu "Abort placement".
●
● Switch the machine off at the main switch and remove the components changeover table as described
above in the section "Checking the limit switch and cable". Pay attention to the placement head!
● Move the slide by hand as far as the switching point (= audible click) of the left-hand limit switch. Now
place a rule in position, move the slide as far as the right-hand switching point (= audible click) and check
the cutting stroke against the rule.
● The cutting stroke must be 656 mm (see Fig. 7.6.1). If it is not, undo the mounting of the limit switches and
correct their position within the play of the through-hole .
● Carry out the "Concluding work" as described at the end of this section.
7 Components Table SIPLACE 80 S-20/F4 Service Manual
7.6 Empty Tape Cutting Unit and Empty Tape Channel Edition 03/97
7 - 34
7.6.6 Checking and Replacing the Cutter Wheel and Cutter Strip
Carry out this check if the tapes are no longer being cut properly.
CAUTION OO
Do not reach into the area of the cutter strip and cutter wheel: danger of physical injury!
● Remove the empty tape cutting unit:
● Undo the plug connection of the tape cutting unit X3ak, on the right beside the cable duct on the
underside of the unit.
● Undo the mounting of the empty tape cutting unit on the underside of the unit: 2 socket-head cap
screws at the slots of the left-hand and right-hand brackets (see Fig. 7.1.3).
→ The fastening of the mounting brackets on the machine base remains unchanged!
● Lift the tape cutting unit - holding it with both hands - upwards and out of the machine base and set it
down without changing the position.
● Carry out a visual inspection of the cutter edge along the entire length of the cutter strip and the face of the
cutter wheel (see Fig. 7.6.2):
● If the cutter edge is dull and / or the cutter strip has collided with the cutter wheel, always replace both
parts (cutter strip and cutter wheel), as described below.
● Replacing the cutter strip and the cutter wheel :
● Undo the 7 socket-head cap screws M4 on the pressure rod (see Fig. 7.6.2) and remove the pressure
rod including cutter strip from the cutter holder.
● Undo the 3 socket-head cap screws M5 on the face of the cutter wheel and lift the cutter wheel off the
shaft.
● Position the new cutter wheel on the shaft and screw it up tight.
● Place the new cutter strip and the pressure rod on the cutter holder and screw both parts firmly to the
cutter holder. The cutter strip should project a maximum of 0.5 mm over the recessed part of the cutter
wheel (see Fig. 7.6.2, Section A-A).
● Adjust the pretensioning of the cutter wheel as described below.
● Next carry out the "Concluding work" (see Section 7.6.15, page 7 - 50).
7.6.7 Checking and Adjusting the Inclination of the Cutter Wheel
– To be measured on cutting units from item no.: 00313882-06 to 00315060-02
● Disengage the tension springs of the cutter strip.
● Fold the cutting blade towards the rear so that the cutter wheel is disengaged.
● Place the magnetic holder with measuring probe on the left side of the guide rail and lower the measuring
probe onto the cutter wheel above point B, as shown in Fig. 7.6.2.
To be observed:
Measuring points A and B must be in a centered position and parallel with respect to the blade.
● Move the cutter wheel so that the measuring probe is located above point A.
● Set the measuring probe to the "0" position.
SIPLACE 80 S-20/F4 Service Manual 7 Components Table
Edition 03/97 7.6 Empty Tape Cutting Unit and Empty Tape Channel
7 - 35
● Now move the cutter wheel so that point B is positioned below the measuring probe.
The measured value should lie anywhere between 0.0 ... 0.1 mm.
● Correct the adjustment at the slotted screw on the carriage (see Fig. 7.6.2).
7.6.8 Checking and Adjusting the Pretensioning of the Cutter Wheel
This check and adjustment should be carried out
– if the tapes are not being cut properly (pretensioning of the cutter wheel is too low),
– if stiffness has led to the motor switching out (pretensioning is too high),
– if you have replaced the cutter wheel and the cutter strip.
NOTE:
The empty tape cutting unit can remain installed for the following work on the machine. However in this case
you must remove the empty tape channel in order to allow access to the setting screws. Please note: after
reinstallation the empty tape channel has to be adjusted symmetrically to the pressure rod of the tape cutting
unit (see corresponding section, below).
CAUTION OO
Do not reach into the area of the cutter strip and cutter wheel: danger of physical injury!
● If the empty tape cutting unit has already been removed from the machine in the course of fault location,
set it down in a stable horizontal position, fastening it so that during the following work you can position the
magnetic holder with the measuring probe correctly on the guide rail.
● Move the cutter wheel carriage to the left-hand end position:
● Undo the locking of the left-hand and right-hand thrust pieces in the cutter holder and screw the thrust
pieces in until the cutter strip rests against the cutter wheel without pretensioning.
● Place the magnetic holder with measuring probe on the left on the guide rail and lower the measuring
probe onto the cutter wheel as shown in Fig. 7.6.2.
Please note:
The measurement point must be adjacent to the cutter strip, the display must now show "0.0 mm".
● Unscrew the thrust piece (left-hand) out of the cutter holder until the cutter wheel is pretensioned 0.2
to 0.3 mm by the cutter strip.
● Move the cutter wheel carriage by hand into the right-hand end position.
● Move the magnetic holder on the guide rail to the right.
● Place the measuring probe on the cutter wheel (see Fig. 7.6.2) and set it to "0".
● Screw out the right-hand thrust piece until the cutter wheel is pretensioned 0.2 to 0.3 mm.
● Check the setting by repeating the first measurement (= left-hand). If necessary, correct again the preten-
sioning of the cutter wheel and lock both thrust pieces in this position.