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| Clean flange at drive plate -A-. |
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| Attach a dial gauge -B- with dial gauge holder -C- (e.g. universal dial gauge holder -VW 387-) to the compressor. |
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| Attach probe of dial gauge -D- to flange of drive plate -A- with a pre-tension of approx. 1.0 mm. |
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| Give compressor drive unit -E- several turns. |
| Specification: Eccentricity less than 0.21 mm (dial gauge deflection, difference between lowest and highest measured value max. 0.2 mm) |
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| If eccentricity exceeds 0.2 mm, slacken off bolts at drive plate → Chapter and re-adjust drive plate. |
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