Grizzly G4000 Owner's Manual page 41

NOTICE
Carriage feed rate is dependent upon the
spindle speed—higher spindle speeds
equal higher feed rates! pay close attention
to the rate of the powered carriage move-
ment and keep your hand poised over the
feed lever to disengage it when necessary.
failure to fully understand this could result
in the carriage crashing into the headstock
or tailstock causing severe damage to the
lathe.
c. Configure the "a" and "b" change gears
as directed (refer to Change Gears on
page 36 for detailed instructions).
Note: When configuring the change gears
for non-threading feed rates, always have
the 120T gear facing out.
3. use the handwheels to properly position the
tool against the workpiece that is correct for
your operation.
NOTICE
NEvER attempt to engage the feed lever (up)
and half-nut lever (down) at the same time,
and NEvER force these levers. Otherwise,
severe damage to the lathe could occur.
ins
120
Model G4000 (Mfg. Since 8/09)
Lever
40
80
a
40
127
b
Feed 0.0047
figure 55. Model g4000 feed rate chart.
4.
push the feed lever up to engage the carriage
gears with the leadscrew (see figure 54).
Note: It may be necessary to rock the car-
riage handwheel back-and-forth to mesh the
feed gear with the leadscrew.
half-nut Lever disengaged (up)
Feed Lever
Engaged
(up)
figure 54. Feed lever in the engaged (up)
5.
push the half-nut lever up to disengage the
half-nut from the leadscrew, as shown in
figure 54.
6. Connect the lathe to power, then with one
hand poised over the feed lever, start the
spindle rotation.
Note: The direction of the carriage reverses
when the spindle direction reverses.
7. When required, push down on the feed lever
to disengage the carriage from the leadscrew
and stop its movement.
9 5
a 28 28
b 60 60
0.0063 0.0078
position.
1 1
28 42
60 60
0.012
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