Broken servo piston

mercredi 2 décembre 2015

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This is the second time I see a broken servo piston of PC300-7
Add to this the small diameter side seal didn't exist and engine stall because the PC-Valve spool was stuck inside the piston.
I couldn't find a reason for this broken piston except weakness in its structure because of the holes inside.
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Broken servo piston

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