What specific electrical issue are you working on with your 333G? Sharing a bit more about the problem could help me point you toward more targeted resources or common solutions.
Unlike automotive fuse boxes located under the steering wheel, the John Deere 333G houses its electrical control center inside the cab for maximum environmental protection. Inside the Cab Location John Deere 333g Fuse Panel Diagram
Data Source : John Deere manual excerpts for "Fuses and Relays under the Right Access Step". What specific electrical issue are you working on