Fantic Caballero 500 - Owner's Manual > Check the chain, pinion and crown wear

Check the following parts and check that the chain, pinion and crown do not show:

1. worn rollers;
2. loose pins;
3. dry, rusty, crushed or seized meshes;
4. missing sealing rings;
5. pinion teeth and/or crown teeth excessively worn or damaged.

The sticker shows how to position the vehicle to measure the chain tension and the minimum and maximum clearance tolerances.

It can be positioned on the chain guard, left side of the vehicle.

If one of these components is damaged, the entire chain assembly (pinion, chain and crown) must be replaced.

Also check the wear of the chain guide and the chain sliding shoe.

Excessive loosening of the chain could make it come off from the pinion, causing accidents and serious damage to the vehicle. Check the clearance regularly.

Improper maintenance can cause premature chain wear and/or damage the pinion and/or crown.

Clearance check

• Stop the engine;
• Position the vehicle on the kickstand;
• Place the gear lever in neutral;
• Pressing with a finger an intermediate point between the pinion and the rim, press the lower branch of the chain first downwards and then towards the other, measuring the distance from the edge of the swingarm; check that the vertical oscillation, obtained as the difference between the highest value "A" and the lowest value "B", is about 35 mm (1.37 in).
• Move the vehicle forward, in order to check the vertical oscillation of the chain also in other positions; the clearance must remain constant in all the phases of the wheel rotation.

If there is a higher clearance in certain positions, it means that there are crushed or seized meshes, in this case contact an Authorized Fantic Motor Center. To prevent the risk of seizure, it is recommended to lubricate the chain correctly.

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