| O P E R A T I O N |
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13" Heavy 13® Gearhead Lathe | For Machines Mfg. Since 5/11 | |
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Compound Rest
The compound rest handwheel has an indirect- read graduated scale. This means that the distance shown on the scale represents the actual distance the cutting tool moves. The base of the compound rest has another graduated scale used for setting the cutting tool to a specific angle.
Graduated Dial |
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Increments | 0.001" (0.02mm) |
One Full Revolution | 0.100" (2.54mm) |
Tool Needed | Qty |
Wrench 14mm | 1 |
To set the compound rest at a certain angle:
1.Loosen the two hex nuts at the base of the compound rest (1 of 2 shown in Figure 58).
Compound
Hex NutRest
(1 of 2)
Angle Scale
Figure 58. Compound rest.
2.Rotate the rest to the desired angle, as indicated by the scale at the base, then retighten the two hex nuts.
Tip: The first time you set the angle of the compound rest for cutting threads, mark the location on the cross slide as a quick reference point. This will allow you to quickly return the compound rest to that exact angle the next time you need to cut threads.
Four-Way Tool Post
The
Each tool can be quickly indexed to the workpiece by loosening the top handle, rotating the tool post to the desired position, then
Installing Tool |
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Tool Needed | Qty |
Tool Post | 1 |
To install a tool in the tool post:
1.Adjust the tool post bolts so that the cutting tool can fit underneath them (see Figure 59).
Tool Post
Bolt
Cutting
Tool
Figure 59. Example of tool mounted in tool post.
Over-extending a cutting tool from the post will increase the risk of tool chatter, breakage, or tool loosening during operation, which could cause metal pieces to be thrown at the operator or bystanders with great force. DO NOT extend a cutting tool more than
2.5times the width of its cross-section (e.g, 2.5 x 0.5" = 1.25").
2.Firmly secure the cutting tool with at least two tool post bolts.
3.Check and adjust the cutting tool to the spindle centerline, as instructed in the next subsection.
