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To be checked: |
Cylinder diameter (by measuring)
Extraordinary wear (by sight) |
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Maintenance Interval: |
Every 2500 operating hours |
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Upper Tolerance: |
+ 0,2 mm ( -> postnitriding/new coating)
+ 0,4 mm ( -> poss. second postnitriding ) |
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Instruction: |
Measuring:
Check the internal cylinder 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 upper tolerance is surpassed.
To avoid superproportional wear replace screw and cylinder at the same time. |