C.A. (Al) Smiley, Jr. earned a bachelor’s degree in education from the University of Mississippi in 1977. After 17 years in the power transmission and hydraulic field, Smiley founded GPM Hydraulic Consulting in October of 1994. Since then, he has taught and designed hydraulic troubleshooting programs for companies throughout the United States and Canada. Smiley also troubleshoots in-plant hydraulic issues, conducts reliability assessments, and does technical writing for GPM’s Machine Specific Hydraulic Troubleshooting manuals. Smiley writes for a number of publications on hydraulic troubleshooting methods. He is married with two boys and two granddaughters, and is a musician and an avid golfer.