Olivetti 3D S2, Service Manual

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Y118040-3 Service Manual 4-5
6. Extract the hot-end group from its conduit.
Figure 4-6
7. With the hot-end group released, use the 12 mm hex wrench to unscrew the bakelite block.
NOTE: To make this operation easier, the wrench supplied with the printer has a low profile.
Figure 4-7
8. Before mounting the new bakelite block, you are advised to pass a metal wire of diameter 1.2 mm through
the hole in the Teflon lining to remove any impurities (for this operation a drill bit also can be used).
12 mm Hex Wrench
12 mm Hex Wrench