This is an Arrow II landing gear diagram.

In the diagram, the high and low pressure controls look like check valves. The pressure switch is unclear.

What are these three items, and what purpose does each one serve?

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  • $\begingroup$ Does the manual offer no explanation? $\endgroup$ – J Walters Jun 5 '19 at 3:06
  • $\begingroup$ @JWalters the plane's information manual does not, but JohnK linked this in another related post. mikeg.net/library/files/pa28-service.pdf : I am reading through it now. Perhaps it has what I'm looking for. $\endgroup$ – Ryan Mortensen Jun 5 '19 at 3:13
  • $\begingroup$ The pressure switch looks to activate in the retracted position as a cut out when the flow becomes impossible, probably at fully retracted position. This would mean that the pressure needs to be maintained in the retracted position, which suggests in case of leak or in case of cooling at high temperature the pump will start again. I am not sure of my answer, this is a just a speculative thinking! $\endgroup$ – user40476 Jun 5 '19 at 12:35

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