Test Run & Break-In - Grizzly G4003G Owner's Manual

Test Run & Break-In
NOTICE
NEVER shift lathe gears when lathe is
operating, and make sure both the half-nut
lever and the feed lever are disengaged
before you start the lathe! Otherwise the
lathe will feed the apron into the chuck or
tailstock causing severe lathe damage.
The purpose of the test run is to make sure the
lathe and its safety features operate correctly.
To begin the test run & break-in procedure:
1.
Make sure the lathe is lubricated and the
headstock oil level is full. Refer to Lubrication
on Page 33.
2.
Make sure the chuck is correctly secured to
the spindle. Refer to Mounting Chuck and
Faceplate on Page 20 for details.
3. Disengage the half-nut lever and the feed
lever (Figure 10).
4. Connect power to the machine.
Feed Lever is
Horizontal
(Disengaged)
Spindle Rotation ON/OFF
Lever is Centered
Figure 10. Apron controls.
5. Rotate the red stop/RESET button (Figure
11) clockwise so it pops out, and make sure
the motor direction selector points to STOP.
6. Move the speed levers to B and 1 so the
spindle will rotate at 70 RPM (Figure 11).
-16-
Half-Nut Lever
is Pulled Up
(Disengaged)
Speed Levers
Figure 11. Headstock controls.
7.
Push the POWER START button, then move
the spindle rotation ON/OFF lever (Figure
10) down until the chuck begins to turn. The
top of the chuck should turn toward you.
—If you hear squealing or grinding noises,
turn the lathe OFF immediately and correct
any problem before further operation.
—If the problem is not readily apparent, refer
to Troubleshooting on Page 35.
8.
Push the emergency stop button.
—If the lathe does not stop, turn the lathe
OFF with the spindle rotation ON/OFF
lever, and disconnect the lathe from power.
Refer to Troubleshooting on Page 35 for
correction.
9.
Return the spindle rotation ON/OFF lever
to STOP, reset the emergency stop button,
restart the lathe, and let the lathe run for a
minimum of 10 minutes in both directions.
10. Turn the lathe OFF, and move the speed
levers to C and 1 so the spindle will rotate at
200 RPM. Run the lathe in both directions for
10 minutes.
11. Repeat Step 9 for the remaining RPM ranges
progressively increasing in RPM. When these
steps are complete, the lathe is broken in.
12. Drain and refill the lubricant in the headstock
with Mobil DTE ® Oil or an equivalent. Refer to
Lubrication on Page 33 for steps and apron
oil change interval.
G4003G Gunsmith's Lathe