Atlas 12" Backgeared Screw Cutting Lathe - Assembly Guide
Assembly and operating instructions for the Atlas 12-inch backgeared screw cutting lathe, covering models 3980, 3981, 3982, 3983, 3990, and 3991. This workshop manual provides comprehensive guidance on mounting configurations—both horizontal countershaft and underneath drive setups—along with essential setup procedures including bed leveling, alignment, and lubrication schedules for continuous operation. Detailed sections address gear selection for thread cutting and feed rates, spindle speed settings across the full operating range, and recommended cutting speeds for different materials and tool setups. Technical diagrams illustrate gear train arrangements, control lever locations, and bed preparation steps necessary for accurate turning work. Whether assembling a new machine or returning one to service, this guide ensures correct installation and safe, productive operation of your Atlas lathe.
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Document Details
- Format
- Pages
- 9
- Size
- 8.9 MB
- Category
- Machine Tools