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| Create a vacuum using the hand vacuum pump -VAS 6213- and observe the linkage. |
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| The linkage must move to the left and the exhaust flap -arrow- must close. |
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| Vent hand vacuum pump -VAS 6213-. |
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| The linkage must move to the right and the exhaust flap -arrow- must open. |
If the linkage does not move: |
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| Check the linkage for ease of movement and/or check the vacuum element is not leaking. |
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