00190867-01 - 第13页

Nachrüst anleitung Waffl epack- W echsler W PW 3 (Mitnehmer) Ausgabe/Edition 08/96 Retrofitt ing Instructions for the Waffl epack Changer W PC 3 (Driver) S eite/Page 13 von/of 20 1.3 Safety Danger !!! The m achines of th…

Nachrüstanleitung Wafflepack-Wechsler WPW 3 (Mitnehmer)

Ausgabe/Edition 08/96

Retrofitting Instructions for the Wafflepack Changer WPC 3 (Driver)

Seite/Page 12 von/of 20

Retrofitting Instructions for the 80F/W3 Wafflepack

Changer on the SIPLACE 80F (Danger of the Driver

Crashing)

1 General

The retrofitting instructions describe how to replace the following parts of a wafflepack changer connected to

a SIPLACE 80F:

− Left guide rail of the lifting unit

− Driver of the feed unit

− Murtfeld rail

− Shaft of the feed unit

This change has been incorporated into series production as of machine number 36 (see the type plate of

the WPC 3).

1.1 Required Tools and Testing Equipment

− Standard tools

− Drift (8 mm diameter)

− Belt Tension Measuring Equipment (new) Item no.: 02102784-01

− Test Program for WPC Version 100.04 Item no.: 00190799-01

− Service Instructions for the WPC Item no.: 00190795-01

1.2 Retrofitting Kit Item no.: 00328528-01

The retrofitting kit contains the following:

− Guide Rail for the Lifting Unit Item no.: 00320238-01

− Mounted Driver for the Feed Unit Item no.: 00320094-01

− Murtfeld Rail Item no.: 00320074-01

− Shaft for the Feed Unit Item no.: 00320073-01

− Retrofitting Instructions for the WPC 3 (Danger of Driver Crashing) Item no.: 00190867-01

− Base for Cable Tie Item no.: 00316830-01

− Deep-Groove Ball Bearing (if required, order from AUT5 VS in Munich) Item no.: 00305996-01

− 21 mm Spacing Sleeve (if required, order from AUT5 VS in Munich) Item no.: 00323623-01

Nachrüstanleitung Wafflepack-Wechsler WPW 3 (Mitnehmer)

Ausgabe/Edition 08/96

Retrofitting Instructions for the Wafflepack Changer WPC 3 (Driver)

Seite/Page 13 von/of 20

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).

Seite/Page 14 von/of 20

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.