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| Adjust the height of the spray area at the front at the spray jet -arrow-. |
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| If the spray area is not as specified, the spray jet is dirty and must be cleaned. |
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| Flush out the spray jet with clean water opposite to the spray direction. |
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| To remove any residual contamination, compressed air can be blown through the spray jet, but only opposite to the spray direction. |
If the spray area is still not as specified. |
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