ltx1040 deck not level
 

Hello,
i have taken the deck of several times for general maintenance . . .new blades, blade sharpening etc . . .however this time the deck is way off of level, so much so they level adjustment bolt does nothing . . .I obviously put the deck back on incorrect . . .but for the life of me can't figure out why . . .is there something simple i am missing???
thanks
Chris