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    3. How to: Fit a 5-piece Piston Seal

    How to: Fit a 5-piece Piston Seal

    Watch our video which demonstrates how to fit a 5 piece piston seal.

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    1. A 5 piece piston seal consists of:

    2 x L-Shaped Wear Rings

    2 x Anti-extrusion Rings

    1 x Flexible Centre Seal

    2. Fit the O-Ring

    First, fit the O-Ring to the internal groove of the piston.

    3. Thread the piston on to the rod

    Tighten with a peg spanner.

    4. Fit the centre seal

    Fit the centre seal using a blunt-ended seal pick.

    5. Fit the anti-extrusion rings

    Fit the 2 x anti-extrusion rings to either side of the centre seal.

    6. Fit the L-shaped wear rings

    Fit the L-shaped wear rings either side of the anti-extrusion rings.

    As the seal is compressed, it will tighten all of the parts together.

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