Southbend SB1049 - Manual (Page 48)

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For Machines Mfg. Since 5/11 13" Heavy 13 ® Gearhead Lathe O P E R A T I O N
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).
Four-Way Tool Post
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.
Figure 59. Example of tool mounted in tool post.
Cutting
Tool
Tool Post
Bolt
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.
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
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 Rest
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
(e.g, 2.5 x 0.5" = 1.25").
Figure 58. Compound rest.
Compound
Rest Hex Nut
(1 of 2)
Angle Scale