00190867-01 - 第14页
S eite/Page 14 von/of 20 2.3 Replacing the F eed Unit Driver • Undo the dr iver’s t wo screws. Mount the n ew driver ( item no. 00320067-02) using the t wo scr ews (see part 48 in figure 4) . W hen instal ling the dr ive…
Nachrüstanleitung Wafflepack-Wechsler WPW 3 (Mitnehmer)
Ausgabe/Edition 08/96
Retrofitting Instructions for the Wafflepack Changer WPC 3 (Driver)
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1.3 Safety
Danger !!!
The machines of the SIPLACE family are supplied with 3 x 400V ± 10% line voltage at 50/60 Hz. Parts of this
system therefore carry dangerous voltages even when the main switch is in the off position. Improper
handling of the machines can result in death or serious injuries as well as considerable damage to property.
Always comply with the relevant accident prevention requirements (particularly EN 60204). Only trained
Siemens service personnel may carry out this retrofitting work.
Before you begin retrofitting work, put the main switch in the off position and disconnect the power plug.
Ensure that the system cannot be switched on again.
If you fail to do this, you run the risk of touching voltage-carrying parts, and this can result in death or serious
injury.
2 Work to Be Carried Out
Preparatory Work:
• Remove all the trays from the WPC.
• Disconnect the power supply of the WPC from the SIPLACE 80F.
• Detach the WPC from the SIPLACE 80F, and set the WPC aside at an angle of 90°. Ensure for
subsequent testing purposes that the connection cables reach the connection sockets on the SIPLACE
machine.
• Remove the front cover by undoing its 3 screws (see part 117 in figure 1).
• Remove the side cover by undoing its 4 screws (see part 115 in figure 1).
• Remove the front plexiglass cover by undoing its 6 screws (see part 34 in figure 3).
2.1 Replacing the Left Guide Rail of the Lifting Unit
• Undo the guide rail’s two screws. Mount the new guide rail (item no. 00320238-01) using the two screws
(see part 96 in figure 5).
2.2 Replacing the Murtfeld Rail
• Remove the proximity switch, the 3 cable ties and the associated bases. Undo the 7 M 4x25 mm screws
of the Murtfeld rail (see part 55 in figure 2). When you install the new Murtfeld rail (item no. 00320074-
01), it is imperative that you replace the old screws with the supplied M 4x22 mm screws. You must also
wet the screws with Loctite 241 (blue).
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2.3 Replacing the Feed Unit Driver
• Undo the driver’s two screws. Mount the new driver (item no. 00320067-02) using the two screws (see
part 48 in figure 4). When installing the driver, ensure that it neither grazes along the sides of the
Murtfeld rail nor touches the bottom.
2.4 Replacing the Shaft in the Driving Unit of the Feed Unit
• Undo the two screws on the stop barrier (see part 70 in figure 2).
• Push the feed unit manually to the stop position. The toothed belt pulley (see part 52 in figure 4) thus
remains stable so that you can undo the three screws of the pressure flange (see part 75 in figure 4).
• Hold the toothed belt pulley (on the opposite side of the feed unit’s frame, see part 53 in figure 4) firmly
and undo the 3 screws of the pressure flange there as well.
• Undo the two screws of the motor flange (see part 47 in figure 4), thus releasing the tension of the
toothed belt.
• Prepare one side of the new shaft (item no. 00320073-01) for installation by connecting the M5x16 mm
screw with the new pressure flange (item no. 00320094-02) between the shaft and screw. (Wet the
screw with a little Loctite 241.)
• Drive the shaft out carefully with an 8 mm drift.
NOTE
When driving out the old shaft, it is imperative that there is a spacing disk between the toothed belt pulley
and the deep-groove ball bearing and that it does not get lost.
NOTE
If the shaft is very difficult to drive out, it may be that it is glued in place. If this is the case, it is imperative that
you also replace the two deep-groove ball bearings (item no. 00305996-01 in the list of replacement parts in
section 1.2 above). The new deep-groove ball bearings must be glued in place with Loctite 601. When
installing the new shaft, remember that there is a spacing sleeve on the inside between the two deep-groove
ball bearings. If there is no spacing sleeve installed (this is possible in the case of one or two WPCs), it is
imperative that you install one (item no. 00323623-01 in the list of replacement parts in section 1.2 above).
• Take the new shaft, and use a plastic hammer to drive it in (proceed in the reverse order to that
described above, and refer to figure 4). Remember the two spacing disks between the toothed belt
pulleys and the deep-groove ball bearings.
• Tighten the other M 5x16 mm screw with the new pressure flange (item no. 00320094-02; in figure 4,
part 200 replaces part 75) and secure it with Loctite 241, while holding the M5 screw on the other side
with an Allen key.
NOTE
If the feed unit will no longer move after you have secured the shaft, the spacing sleeve (item no. 00323623-
01) between the two deep-groove ball bearings must be missing.
• Tighten the toothed belt (see part 80 in figure 4), and tighten the two screws on the motor flange again.
Use the belt tension measuring equipment to set the tension of the belt at 230 +/- 5 Hz.
Nachrüstanleitung Wafflepack-Wechsler WPW 3 (Mitnehmer)
Ausgabe/Edition 08/96
Retrofitting Instructions for the Wafflepack Changer WPC 3 (Driver)
Seite/Page 15 von/of 20
• Screw the stop barrier on again.
• Connect the wafflepack changer to the SIPLACE 80F again. However, do not attach it to the SIPLACE
machine; leave it at 90° to it.
• Load the test program (see the section entitled “Required Tools and Testing Equipment”) in order to set
the zero point adjustment of the feed unit as described in the Service Instructions (section 0.4.1.1).
• Check the zero point adjustment of the feed unit once more.
• Install the front cover, the side cover and the front plexiglass cover in the reverse order to how you
removed them.
• Insert all the trays in the WPC 3 again.
• Attach the WPC 3 to the SIPLACE 80F again.
• Connect the cables of the WPC 3 to the SIPLACE 80F again.