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| Tighten adjusting nut -arrow- until both wheels are hard to turn by hand. |

Note | The adjusting nut -arrow A- must be screwed over the end of the tension rod (self-locking effect). |
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| Release hand-brake and check whether both wheels rotate freely, if necessary release adjusting nut slightly. |
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| Put the hand-brake lever into the 4th catch position (after being in the release position). |
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| No wheel should be rotatable; tighten the adjusting nut if necessary. |
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| Release hand-brake and check whether both wheels rotate freely, if necessary release adjusting nut slightly. |
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| Put the hand-brake lever into the 1st catch position and release the hand-brake. |
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| The hand-brake must automatically return into the release position below the 1st catch. |
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