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    Top tips when assembling your hydraulic equipment

    hydraulic engineer market sector

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    Follow these hints and tips to avoid unnecessary problems and systems downtime when assembling your hydraulic equipment.


    Most importantly – maintain cleanliness; contamination is the reason for many hydraulic problems.


    Air hoses can be used to clean hydraulic fittings and other components. However, the air supply must be filtered and dry to prevent contamination of the parts.


    Do not drive couplings on pump or motor shafts; they should be a slip fit or shrunk on using hot hydraulic oil.


    All openings in the reservoir should be sealed after cleaning.


    Examine pipe fittings and hose assemblies prior to use to ensure that burrs, dirt and/or scale are not present; all pipe and tubing ends should be reamed to prevent restriction and turbulent flow.


    Always use a dry spray-on lubricant on splines when installing. This prevents wear and adds to the useful life of the splines. Moreover, when using double universal joint couplings, the shafts must be parallel and the yokes must be in line.


    No grinding or welding should be done in the area where hydraulic components and systems are being installed; all cylinder, valve, pump and hose connections should be sealed and/or capped until just prior to use.


    Never use Teflon tape on straight thread connections.


    When installing V-belt pulleys on pumps or motors, line up both pulleys as closely as possible. Always install the pulleys with a minimum amount of overhang as close to the pump or motor face as possible – this increases bearing surface life.


    Mineral spirits should be kept in safety containers.


    When installing hydraulic pumps or motors, always align coupling halves as closely as possibly,within 0.007 inch. When using flexible couplings, follow the manufacturer’s recommendations or allow 1/32 to 1/16 inch clearance between the coupling halves.

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