Mark

We don't normally check power "quality". You can look at it with a O'Scope, but that's just going to show a sine wave.

You have three sources of power on the 737. Each engine driven generator and a  APU generator. These can be isolated to power the complete aircraft if you wanted to try each one individually.

On a previous post I sent a copy of the maintenance manual that stated the electrical pump can "only" supply six gallons a minute and it is "not" recommended for raising the gear. The manual stated it can raise one gear at a time when the aircraft is on jacks.

What is the problem here??? Is a engine pump not working??? Crews are not supposed to use the electric pump for raising the gear. After takeoff, the gear should go up quickly as they cause significant drag. I haven't dug into (nor will I) if either primary hydraulic system can be used to lift the gear.

If an aircraft cannot lift the gear with the engine pumps..... it should be grounded until fixed.
  
     

You're travelling down the wrong road with your thinking.