Grizzly G4015Z owner manual Tool Post, Using a center to check tool bit height G4015 Lathe/Mill

Tool Post

The Model G4015Z comes supplied with a 4 way turret tool post. It is designed to accept up to 4- 1⁄2" tool bits. Other devices and holders may be installed into the tool post and arranged as in Figure 9. When more than one tool is secured into the tool post, changing from one tool to another is quickly done by loosening the lock lever (#5) and rotating the post to the desired tool. A spring-loaded catch is installed below the tool post. This allows motion in only the counter- clockwise direction. The catch causes the tool post to stop at the same rotational point for each tool placement. This feature can be useful for some types of machining setups. Please note that the secureness of the tool post is not depen- dent upon the catch. Thus, the tool post can be positioned at any rotational location and properly secured with the lock lever.

If using tool bits that require shimming, be sure to use steel shims as opposed to aluminum or brass shims. Soft shims may give, allowing the tool bit to become loose!

When securing a tool bit into the tool post, always remember these rules:

•Secure the tool bit with at least 2 bolts on the tool post.

•Make sure the top of the tool bit is at the lathe spindle center line or just below. The tailstock center can be used as in Figure 10.

•Never extend the tool bit more than 21⁄2 times its thickness from the edge of the tool rest. i.e. a 3⁄8" tool bit should only extend 15⁄16" past the bot- tom of the tool rest. Less is best!

•Always use sharp tool bits.

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5

4

2

3

Figure 9. Four tools mounted into the tool post:

1.Boring Bar

2.Left-Cutting Tool Bit

3.Threading Tool Bit

4.Right-Cutting Tool Bit

5.Lock Lever

Figure 10. Using a center to check tool bit height.

G4015 Lathe/Mill -17-