Grizzly G3358 owner manual Speed Changes, To change spindle speeds, Position

Speed Changes

The Model G3358 is capable of twelve different speed settings. Different types of cuts and materi- als require varying speeds. Refer to the chart in Figure 29 for appropriate cutting speeds.

To change spindle speeds:

1.DISCONNECT MACHINE FROM POWER!

2.Loosen the motor locking lever. Pull the motor inward to move the rear pulley toward the spindle (Figure 26).

Motor Locking Lever

Figure 26. Motor locking lever.

3.Loosen the two idler pulley bolts that hold the idler pulley in place so the pulley can move freely (Figure 27).

Idler Pulley Bolts

Figure 27. Pulley system.

4.With the center and rear pulleys loose, move the V-belts to the corresponding position for the desired speed (see chart below).

4.Push the motor back to tighten the rear V-Belt, then tighten the motor locking lever.

5.Tighten the bolts holding the idler pulley in place.

RPM	Position	RPM	Position
120	A-1	780	B-4
195	A-2	1065	C-3
230	B-1	1220	D-2
285	A-3	1515	C-4
375	B-2	1810	D-3
440	C-1	2580	D-4

He^cYaZEjaaZn	>YaZgEjaaZn	BdidgEjaaZn
	)	6
	(	7
	'	8
	&	9
	Figure 28. Spindle speed chart.
-24-		G3358 Milling/Drilling Machine