| O P E R A T I O N |
|
For Machines Mfg. Since 5/11 | 13" Heavy 13® Gearhead Lathe | |
|
|
|
E
F
Figure 70. Apron power feed controls.
E.Feed Selection Lever: Directs the power feed to either the cross slide or the carriage.
When the lever is down and the indent pin is pointing up, the cross slide is selected. Conversely, when the lever is up and the pin is pointing down, the carriage is selected.
In the middle position, the apron gears are disengaged from the feed rod and neither component will move.
Note: When using this lever, you may need to slightly rotate the handwheel of the component you are trying to engage, so that the apron gears can mesh.
F.Apron Feed Direction Knob: Changes the feed direction when the lathe is running.
The advantage of this knob is that you can quickly reverse power feed direction while the spindle is
Depending on the combined configuration of the headstock feed direction lever and the apron feed direction knob, the actual direction of power feed may be different from the printed indicators on the machine!
Setting Power Feed Rate
The feed rate chart on the upper right of the headstock face displays the settings for the headstock feed controls for metric and inch feed rates.
Using the controls on the lathe, follow along with the example below to better understand how to set the lathe for the desired power feed rate.
Setting Power Feed Rate of 0.18mm/rev
1.Make sure the end gears are in the standard configuration, which is applicable for general feed operations (refer to End Gears on the next page for detailed instructions).
2.Locate the line in the feed rate chart that lists the setting for 0.18mm of feed per revolution of the spindle, as illustrated in Figure 71.
mm |
| in. |
.050 | LCT1W | .002 |
.055 | LCT2W | .0022 |
.065 | LCT4W | .003 |
.085 | LCT8W | .0033 |
.10 | LCS2W | .004 |
.13 | LCS4W | .005 |
.18 | LCS8W | .007 |
Figure 71. Feed rate chart.
When using power feed to move the cross slide, the feed rate is 1⁄2 the value stated in the feed rate chart.
3.The configuration string of characters to the right of the selected feed rate (LCS8W) displays the positions to set the feed controls for a feed rate of 0.18mm/rev. (see Figure 71).
