I have a john deere L110 that is about 6 years old. I have a bent belt pulley shaft . I need information as to removal so I can replace it.

Usually the entire mandrel comes out with 4 bolts or screws, not hard if you have removed the deck. Carefully inspect the deck to make sure it is still flat.

Hi,
You will find as a mandrel unit #GY20785 and you may be wise to get the bolts #GX20234 as they often break off instead of loosening.
Peace,
Clarke