| O-rings, oil seals and gaskets |
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| Always renew O-rings, oil seals and gaskets. |
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| After removing gaskets, check the contact surfaces of the casing and shaft for feathering or damage caused by the removal process. |
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| Thoroughly clean housing joint surfaces before assembling. |
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| Always replace paper gaskets, completely disposing of the used gasket and thoroughly cleaning the contact surfaces. |
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| Lightly lubricate the outer circumference and sealing lip of oil seals with gear oil before installing. |
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| Coat the O-rings with gear oil or Vaseline before fitting to avoid crushing during assembly. |
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| Never use other lubricants in the gear oil area. Otherwise there is a danger of operation faults in the hydraulic gear mechanism. |
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| The open side of the oil seal should face the side containing the fluid. |
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| When installing a new oil seal, position the seal such that the sealing lip does not contact the shaft in the same place as the old seal (make use of installation depth tolerances). |
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