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TECHNICAL INFORMATION
The Verti-Core III is generally not a complicated machine. A number of technical items will be
explained further. If you still have questions after that, you should contact your dealer, who will be
happy to help you.
Fig. 15
Figure 15 depicts the structure of the crankshaft. Also check the parts page for more detailed
drawings.
14.1 REPLACING A CRANK/CONNECTING ROD BEARING
A crank must be replaced when it has cracked or when the nuts of the big-end regularly come loose,
i.e. the connection rod bearings, connection rod bearing fittings or the big-end pin holes in the crank
are damaged. Replace the crank/bearings as soon as possible, in order to avoid any further damage
to other parts, and do so as follows (see Fig. 16):
1. Remove the big-end nut (1) and big-end pin (2) from the driving rod (7) on both sides of
the bearing (4).
2. Drive rod (7) is now detached.
3. Remove the nuts (3) from the bearing (4), and remove the bearing (4), including crank
elements, from the machine.
4. Remove nut (5) and beam axle (6).
5. Remove the bearing from the beam axle (6).
6.
Replace defective parts and follow reverse order to reassemble the machine.
Use Loctite for nuts (1) and (3).
