| 1. Check as the lever mechanism of a butterfly valve functions. |
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2. If at completely squeezed out pedal the zaslonka opens not up to the end, ask the assistant to take a pedal pressed, weaken adjusting nuts and adjust a rope so that the label or the course limiter, were at the demanded distance from a cap.
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| 3. Tighten nuts and again check, how the lever mechanism functions. |
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