Eternal cuff for the pump. Drawing, description

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Eternal cuff for the pump. Tips for the home master

Builder, home master

The weak point of any piston pump - automobile, motorcycle or bicycle - is, as you know, the piston, or rather, the leather cuff, and the main fault is its loose fit to the cylinder walls. The fact is that the skin shrinks over time, warps, cracks.

A star-shaped washer cut from elastic foil or plastic can help. The washer dimensions are determined by the diameter of the pump cylinder and the height of the piston. The part is installed under the piston nut, while its petals press the collars of the cuff against the walls of the cylinder. As the experience of operating a pump with such a washer has shown, the cuff works perfectly until it is completely worn out, while maintaining a constant pump performance.

Eternal cuff for the pump

Author: S. Yakaba

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