Speed Changes - Grizzly G3358 Owner's Manual

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.
-24-
3.
4.
4.
5.
rpm position rpm
120 A-1 780
195 A-2 1065
230 B-1 1220
285 A-3 1515
375 B-2 1810
440 C-1 2580
figure 28. spindle speed chart.
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.
With the center and rear pulleys loose, move
the V-belts to the corresponding position for
the desired speed (see chart below).
push the motor back to tighten the rear
V-Belt, then tighten the motor locking lever.
tighten the bolts holding the idler pulley in
place.
position
B-4
C-3
d-2
C-4
d-3
d-4
g3358 Milling/drilling Machine