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BA TH412 * 06/2017 * 4512_7-20_Optionen_en.fm
7 Maintenance
Automatic trailer coupling
In order to ensure the correct function of the trailer
coupling, coupling pin A must be closed before cleaning
with a high-pressure cleaner.
1. Close the trailer coupling.
2. Apply tough, water-proof grease to coupling pin A and
base ring B once cleaning is over.
3. Apply grease to grease zerk C on the joint.