Grizzly G0516 This is how to read the feed rate charts, Shaded boxes show the thread

This is how to read the feed rate charts:										3. The boxes on the left-hand column (exclud-
										ing the box in the upper left-hand corner) rep-
1. The box in the upper left-hand corner of each										resent the gear positions on each shaft.
chart tells whether that chart represents car-										These boxes are shaded in Figure 30 and
riage feed movement for standard or metric										the shafts are called out with arrows.
threads. These boxes are shaded in Figure
28.
	1"⁄n		16	18		20		24		Upper Adjustable Shaft	1"⁄n		16
												B	70
		B	70	70		70		70
										Lower Adjustable Shaft
	D E		60 40	60 80		60 80		50 40		Pivot Shaft	D E		60 40
											F		80
	F		80	45		50		100
	mm		0.4		0.5		0.6		0.7
	C B		68 80		68 80		68 80		68 40
										Figure 30. The shaded boxes show the thread
	D E		72 30		72 35		72 45		72 35	pitches listed on this chart.
Figure 28. The shaded box indicates whether
the chart is for standard or metric threads.										4. Each shaft has room for two positions to
										mount the gears—a forward position and a
2. The boxes in the top row of each chart										rear position. Figure 31 separates these
(excluding the box in the left-hand corner)										positions into different shades for you to
shows the thread pitches listed on that chart.										understand better.
These boxes are shaded in Figure 29.

1"⁄n		16	18	20	24	32	40
	B	70	70	70	70	70	70
D E		60 40	60 80	60 80	50 40	45 80	30 40
F		80	45	50	100	60	100

Figure 29. The shaded boxes show the thread

pitches listed on this chart.

1"⁄n		16	18	20	24
	B	70	70	70	70
D	E	60 40	60 80	60 80	50 40
F		80	45	50	100

Rear

Forward

Figure 31. The shaded boxes show the thread

pitches listed on this chart.

Both forward and rear positions must be filled on the shaft in order for the gears to work properly. A good example of this is the blank spot to the right of gear “F,” as shown in the chart in Figure 31. Although the chart shows this as a blank spot, there should actually be a spacer in this position on the machine. This spacer is not listed on the chart, because the chart only reflects ACTIVE gear positions.

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