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|Revision History (Current version is 4th Ed., Rev. H - September 2021)|
|Table of Contents|
|Important Safety Warning|
|Chapter 1||Getting Started|
|Chapter 2||Cast-Iron Worm Gearboxes|
|Chapter 3||Aluminum Worm Gearboxes|
|Chapter 4||Installation and Lubrication|
|Appendix A||Glossary of Terms|
|Appendix B||Gearbox Selection|