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| To be checked: |
Screw diameter (by measuring) Extraordinary wear (by sight) |
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| Maintenance Interval: | Every 2500 operating hours |
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| Lower Tolerance: |
-0,4 mm ( -> postnitriding) -0,6 mm ( -> poss. second postnitriding) |
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| Instruction: |
Measuring: Check the external diameter at the above determined measuring points. Register the progression of wear. Register zones of extraordinary wear. |
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| Note: |
Wear is superproportional when lower tolerance is surpassed. To avoid superproportional wear replace screw and cylinder at the same time. |
