Hi Jerry,
Maybe not part of a normal LOF, but if you have grease style front wheel bearings, and you haven't had them checked in a while, that may be something you want to consider having done while it's in the shop. Then they can check the brakes and steering linkage too while the front end is off the ground.
Are you replacing all filters?
Oil,
Fuel,
Hyd,
Trans.
Do you change your oil(s) on a calendar or mileage basis - or do you have an oil analysis done to determine when to change the oil(s)?