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| The pistons must not be positioned at TDC. |
Note Gradual introduction of PTFE seals (poly-tetra-fluoro-ethylene). Identification: has no circular spring, sealing lip is wider. The sealing lip of this oil seal must not be additionally oiled or greased. A radial shaft seal of the old type (with circular spring) can be replaced with a PTFE seal - but not the other way around. |
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