DT SWISS SPLINE ROAD 2015 RC 28 Technical Manual page 26

Cleaning and Checking the Parts
1. Clean all parts of the hub (see
2. Check all parts for damages and wear.
3. Check the bearings.
If the hub doesn't turn smoothly, change the
bearings (see Technical Manual at
www.dtswiss.com).
4. Clean the toothing of the rotor and the ring nut.
5. Check the rotor for damages.
Grooves from the cassette are no damages. These
are normal signs of usage.
6. Remove bad notches from the rotor using a file.
7. Clean the rotor. Metal filings must be removed
completely.
Cleaning, S.6).
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SPLINE Wheels - Technical Manual 25