Southbend SB1059F Four-Way Tool Post, Installing Tool, To install a tool in the tool post, 5 =

For Machines Mfg. Since 3/11 O P E R A T I O N EVS Toolroom Lathe w/DRO

Four-Way Tool Post

The four-way tool post is mounted on top of the compound rest and allows a maximum of four tools to be loaded simultaneously.

Each tool can be quickly indexed to the workpiece by loosening the top handle, rotating the tool post to the desired position, then re-tightening the handle to lock the tool into position.

Installing Tool
Tool Needed	Qty
Tool Post T-Wrench	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 2.5 times the width of its cross-section or less (e.g, 2.5

x0.5" = 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.

Aligning Cutting Tool with Spindle Centerline

For most operations, the cutting tool tip should be aligned with the spindle centerline, as illustrated in Figure 60.

Cutting	Spindle
Tool	Center
	Line

Figure 60. Cutting tool aligned with spindle centerline

(viewed from tailstock).

There are a number of ways to check and align the cutting tool to the spindle centerline. If necessary, you can raise the cutting tool by placing steel shims underneath it. The shims should be as long and as wide as the cutting tool to properly support it.

Below are two common methods:

sAlign the tip of the cutting tool with a center installed in the tailstock, as instructed on the next page. For this to work, the tailstock must be aligned to the spindle centerline (refer to Aligning Tailstock To Spindle Centerline on Page 45 for detailed instructions).

ss-AKE A FACING CUTAON A PIECE OFUROUNDOBAR stock. If the tool is above or below the spindle centerline, a nub will be left in the center of the workpiece. Adjust the height of the tool, then repeat the facing cut to check the adjustment. Repeat as necessary until the center of the workpiece face is smooth.

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