737 Hyd pumps ops

[fruitloop]

kenguan
Correct regards interconnect switch...With WOW remember to "Park Brakes" or nothing happens..

[J74]

Patryk

The engine driven pumps switches are normally left in the ON position as the solenoid energises when the pump is switched OFF.(therefore saving the slolenoid valve when left in the On position).
The only hydr pumps that are switched OFF on the ground(after engine shutdown) are the electrical pumps.
The engine driven A is switched off when tow bar is required and no pins installed.

Some airlines request their crews to always switch OFF the syst A engine and electrical hydr pumps as they have no trust in either the pilots or the ground crew.

Patryk I didn't change lot of Company as I've been for few years with the same and the procedure is like the above, and I asked many other crew for many others Companies and still all what De FACTO said to you.
That is the most and complete and precise reply to You.!

[Patryk]

Thank You once again for your precise replies. It's helped me a lot. I was confused beforehand about these OPS but for now everything is clear.