Grizzly G0827 Owner's Manual page 29

Horizontal/vertical mill w/dro
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18. Reset E-STOP button.
19. WITHOUT closing rear column cover, press
POWER button. Indicator light should not
illuminate. Attempt to start vertical spindle
rotation. Machine should not start.
— If machine does not start, rear column
cover safety switch is working correctly.
— If machine does start (with the rear col-
umn cover open), immediately disconnect
power to machine. The rear column cover
switch safety is not working correctly.
This safety feature must work properly
before proceeding with regular operations.
Review Troubleshooting on Page 55.
20. Close rear column cover and fully tighten
bolt.
21. Ensure LED work light functions properly.
22. Press POWER button.
Coolant must be added before the coolant
pump is tested. Otherwise, running pump
without coolant will burn it up.
23. Use coolant pump switch on control panel to
start pump (see Figure 28), then open nozzle
valve. Verify that coolant flows from nozzle,
then turn pump OFF.
Figure 28. Location of coolant pump switch.
Model G0827 (Mfd. Since 11/17)
Coolant
Pump Switch
Power Feed Test Run
The mill comes with power feed units for X- and
Y-axis table travel. Proper operation of the limit
switches is critical for the safe use of the power
feed units. If the power feeds do not operate as
expected during the following steps, disconnect
machine from power and review Troubleshooting
table on Page 55.
To test power feeds:
1.
Make sure all tools, cables, and other items
are well clear of table movement as you fol-
low these steps.
2.
Refer to X- and Y-axis Power Feed identifi-
cation on Page 7 to understand how power
feeds, table locks, and limit switches function.
3.
Loosen X-axis table locks on front of table.
4.
Make sure X-axis power feed directional lever
is in neutral (middle) position, turn speed dial
counterclockwise to lowest setting, then turn
power feed ON.
5.
Move direction knob to left, slowly rotate
speed dial clockwise to increase speed, then
confirm table is moving left.
6.
Watch for table limit stop to press against
limit switch plunger and turn power feed OFF,
stopping table movement.
7.
Move direction knob through neutral (middle)
position and all the way right. Table should
begin moving right.
8.
Confirm table stops moving when limit stop
presses against limit switch plunger.
9.
Move direction knob to neutral (middle) posi-
tion, turn speed dial counterclockwise to low-
est setting, and turn power feed OFF.
10. Repeat Steps 3–9 in a similar manner for the
Y-axis power feed.
Congratulations! The Test Run of the mill is
complete. Continue to the next page to per-
form the Spindle Break-In and Inspections &
Adjustments procedures.
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