Feed Rate
The speed at which the saw blade will cut through a workpiece is controlled by blade type, feed rate, and feed pressure.
Note: If a lubricant is used on the cut, the feed rate can be increased by approximately 15%.
To set the feed rate:
1.Raise the headstock to the maximum height to remove spring tension. Close the ON/OFF valve to lock the headstock in place.
2.Using a 14mm wrench, adjust the feed pressure tension spring. Tighten enough to remove play but not enough to apply tension to the spring (see Figure 20).
Note: This spring adjustment is an initial set- ting. Depending on cutting circumstances, you will have to
Spring
Adjustment Nut
Figure 20. Spring tension adjustment.
3.Clamp the workpiece in the table vise.
4.Close the feed ON/OFF valve Figure 21, to lock the headstock and blade a few inches above the workpiece.
Feed Rate Dial |
ON/OFF Valve |
Figure 21. Feed rate dial. |
5.With the correct saw blade and blade speed selected, turn the saw and lubricant pump ON.
6.Slowly rotate the feed rate dial clockwise to a slow feed rate until the saw begins to cut the workpiece (see Figure 21).
7.Observe the chips that exit the cut, and increase or decrease the feed rate according to the chip characteristics (see Figure 22).
Chips are width of tooth, thin and curled, and silvery: Optimum speed and feed rate.
Chips are silvery, thin, small, or powdery: Increase feed rate.
Chips are large, curled, blue or brown, or smoking: Decrease feed rate.
Figure 22. Reading chip characteristics.
G9743 7" x 12" |
