Small Engines (Lawn Mowers, etc.): John Deere riding mower deck adjustment, john deere stx38, john deere

Question
I just bought a used John Deere STX38.  mower deck seems to be in the highest position.  I tried lowering it to a better cutting level but can't figure out how to lower the deck.  When I pull the lever between your legs that looks like the height adjustment, it won't move.  It is set in the highest level (closest to the seat).  How do I adjust the cutting level on this model mower?

Thanks

Answer
Hi David,

I'm not familiar with the exact  set up on your mower.  I would trace the linkage from the deck's wheels, back to the lever you mention, to be sure you have the right lever.  Then look for a locking button or pin that needs to move to allow adjustment.  Something may be rusted and frozen.

Let me know how you make out.
Michael