Inspections before installation of landing gear

[Green 123]

Is it possible to test/ inspect hydraulic system of retraction/extension and hydraulic system of break before installation of landing gear?

 

[SWComposites]

sure, mount it on a test stand simulating an aircraft.

 

[Green 123]

sure, mount it on a test stand simulating an aircraft.

I am asking about hydraulic components which are fitted to aircraft

 

[WKTaylor]

G123... Landing gear systems hydraulics are designed to 'work' with landing gear installed. There are 'iron-bird' mechanical test set-ups for 'whole system testing'... or 'bench tests' for every component of the hydraulics systems for the gear...

'Swinging the gear' while on jacks is a fairly well established test practice for the whole system... especially for movement rates/timing, conflicts, smoothness, odd noises, etc, etc...