The BIGGEST problem with deleting the hydraulic cylinders (as mentioned by jyoutz)
is the DANGER in changing blade position.
When you pull a pin, if you are not on perfectly level ground,, that blade starts to accelerate its repositioning!!
Once it starts to go,,, that weight can really surprise you!! It just wants to KEEP GOING!!
You think you can stop it,, but, that may not be true,,
On a slight grade, you could quickly loose a finger, hand,, or worse.
When I re-position my Bush Hog 7 foot blade, it can get away from me,,
and I doubt it weighs 1/3 of what that 8 foot blade weighs.
I am 6'7",, so I am not a little guy,, I would never consider repositioning that 8 foot blade,,
unless the machine was in the shop, on known level concrete.
When that blade is not moving, it is easy to pull the pin,,
once it starts moving, it is crazy hard to control,, inertia is a VERY strong force multiplier!!