better to be under water the whole time then out of the water and unattended for some time after. Any mud inside? Remove any black boxes, hose it all out, then take any covers off of solenoids, etc and douse them with alcohol in one of those spray cans you can pressurize with a schrader valve, then blowgun dry. Motors should come apart & have the same done, then load in a low temp oven to evaporate everything. May need bearing replacement if they were wet and dried by themselves unless well greased. instruments & switches may not make it, limit switches may be sealed well enough to survive..
The key ;were the batteries plugged in?It is a crapshoot but keep in mind How many times a cold storage unit comes out of a freezer ices up and needed to thaw/ dry out. Motors , pumps, all need to be taken apart and cleaned out and inspected. At one dealer we took a couple of raymond mod 38 swing reaches cleaned them out almost to the point of rebulding them an had really good luck with them.
I have repaired lifts from hurricanes
I had some from hurricane Katrina I removed the batteries and unplugged and removed all of the electronics ie accelerator , control modules etc then blew out and let dry for ten days
Made sure no moisture in any motors or controllers then put together out of five I had one that I got to work without needing parts
It's a crap shoot either way especially if battery was in unit and plugged up
The very least you will probably ending up replacing several cards and controllers and maybe a few motors not an inexpensive
Endeavor
truck were in storage warehouse no flood insurance. we got 54 trucks out and 27 were under water over the steering wheels for over two weeks
Are these not covered by any insurance?
Two weeks under water wouldn't do the electronic control units, motors or wiring looms any good.
Even if you can get them working over time corrosion will take hold of the wiring & electronics.
I have dried out wet trucks but not trucks that were under water for an extended period of time. I would remove all covers and blow out everything I could. Let them dry for at least a week. Blow them out again and see what happens.