Forum: F-16 Procedures

Hydralic start motor delay valve



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gilcantu
PostPosted: Jul 25, 2011 - 05:19 PM Reply with quote Back to top
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If the hydralic start motor has a hydralic switch What is the purpose of the hydralic start delay Valve between the motor and accumilators ? Also is the inlet pressure to the delay valve 3000 Psi from the accumilators??
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bohica
PostPosted: Jul 25, 2011 - 06:13 PM Reply with quote Back to top
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As far as I know the Hydraulic Start motor does not have a "Switch"

If I remember correctly, they delay valve dampens the hydraulic pressure to the start motor. With the inline delay valve (spring and piston) it allows the start motor to received fluid at a lower pressure; saving mechanical failures.
As for the pressure at the start motor; I believe the pressure would be less than 3000 psi once the fluid is released and then increased exponentially.
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gilcantu
PostPosted: Jul 25, 2011 - 07:47 PM Reply with quote Back to top
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Very Happy This makes sense . Thanks for your Help
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