Shimano NEXUS CS-C7000 Руководство дилера - Страница 46

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Maintenance

Oil maintenance of the internal assembly

Push the piston to inject the new oil into the inside of the hub.

Piston

When the oil is forced in, the internal pressure will increase and the piston may push back. If the

piston is periodically pulled back to reduce the pressure inside the hub, the oil will be easier to

inject into the inside of the hub.

After pulling back the piston to reduce the internal pressure, remove the bleed nipple.

If the bleed nipple is removed without pulling back the piston, the oil may flow back into the

piston together with air due to the internal pressure and spill out of the piston.

Install the O-ring and the oil port screw.

While performing gear shifting operations, turn the pedals to turn the wheel for approximately one minute.

Keep the wheel still without rotating for about 1 minute.

Remove the oil from inside by following procedure for removing the old oil above.

Adding new oil

Inject 25 ml of new oil into the hub by following steps

2 - 3 N·m

Oil port screw

O-ring

of internal cleaning.