S Class 2 cutter Service manual
Replacements guidelines 2-28
2.17 Replacing the flatcable
Flatcables are sold as an assembly. Reason is that the metal guide is unusable after it has
been removed. It is not recommended to buy flatcable and metal strip separately.
To replace the flatcable, proceed as follows:
1. Remove the right-hand cover (see Section 2.4, Removing the right-hand cover).
2. Remove the left-hand cover (see Section 2.3, Removing the left-hand cover).
3. Remove the top cover (left and right 3 screws).
4. Remove cover tool carriage (2 hex screws).
5. Loosen the flat cable(s) by pulling the flat cable connector cover up. On both sides of the
connector cover there is a small protuberance that you can pry up using a screwdriver.
Gently pull the flat cable out of the connector (both sides flatcable).
6. Remove all tie-wraps holding the flatcable.
7. Remove screws holding the metal strip (2 on tool carriage, one in side plate).
8. To re-install the flatcable, proceed as follows:
1. Place the flat cable assembly in the gutter of the Y guiding.
2. Make sure that the middle of the left marker is just left of the side plate.
3. Hold the assy on its place, remove the protection of the double backing tape and fix it in
the gutter. Make sure the path is completely straight. If the distances, as shown in the
figure, are not equal, then the flatcable will not run straight and wear down in a couple of
months.
4. Fix the flatcable assy to the bracket of the tool carriage. Fix with 3 tie wraps (1). Check
whether the loop does not touch the spring-loaded Y assy (2 – this is in fact a little too
much play). Then secure the metal strip with two screws and flatwashers.
5. Then fix the flatcable at the right side. Cut metal strip if necessary and secure with
flatwasher and screw (1). Then fold the flatcable as in the picture and secure with tie
wraps on the motor bracket (2). Fold the rest of the flatcable together and secure with tie
wraps (3). Then put the flatcable in the connectors (4). The flatcable that goes in to
connector head1 is the flatcable that has the metal leads facing upwards at the side of
the tool carriage.
6. Connect the flatcable in the PCB of the tool carriage.
7. Put all covers back in their place.
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