Landing gear

[Skymaster337B]

The first thing that comes to my mind is that the resevior isn't full. At the expense of insulting you, have you confirmed the hydraulic resevior is full by adding 5606 until is pisses out of the vent?

The other things include adjusting the gear handle releases, replacing door solenoid, and worse case the hydraulic solenoid valve in the hydraulic power pack. I don't think it is the time delay valve because it either works or it doesn't...there's no adjustment for it.