Grizzly VS MILLING MACHINE G0669X - Manual (Page 25)

g0669X precision 10" x 54" Vs Milling Machine
-23-
16. start spindle rotation.
17. test the variable speed dial by turning the
speed all the way up for a few seconds, then
turning it all the way down.
18. point the coolant nozzle onto the table, turn
the coolant pump switch to " l" or ON, then
check for proper operation of the coolant sys-
tem.
19. Use the vertical power feed buttons on the
control panel to raise and lower the knee to
make sure the vertical limit stops (right side
of knee) are working properly.
20. set the longitudinal limit stops and test the
longitudinal power feed for proper operation
(see
Longitudinal Power feed on Page 26
for detailed instructions).
When all of the test Run procedures are success-
fully completed, proceed to Spindle break-In.
Spindle break-In
NOTICE
Successfully complete the spindle break-in
procedure to avoid rapid wear of spindle
components when placed into operation.
3. turn the machine ON, start spindle rotation,
then adjust the spindle speed dial for approxi-
mately 280 rpM.
4. Let the mill run at this speed for 20 minutes,
then turn the spindle OFF and wait for it to
stop.
5. Use the spindle direction switch on the con-
trol panel to reverse the spindle direction and
start the spindle rotation, then let the mill run
for another 20 minutes.
6. turn the spindle OFF and wait for it to stop,
then move the spindle speed range selector
to the high position and start spindle rota-
tion.
7. set the spindle speed at approximately 2100
rpM, then repeat Steps 4–5.
8. turn the mill OFF. the spindle break-in is
now complete and the machine is ready for
operation.
For your convenience, the adjustments listed
below have been performed at the factory.
however, because of the many variables involved
with shipping, we recommend that you at least
verify the following adjustments to ensure the best
possible results from your new machine.
step-by-step instructions for these adjustments
can be found in the
SERVICE section starting on
Page 43.
factory adjustments that should be verified:
1. gib adjustment (Page 46).
2. Leadscrew backlash adjustment (Page 47).
Recommended
Adjustments
it is essential to closely follow the proper break-in
procedures to ensure trouble-free performance of
your mill.
to perform the spindle break-in procedure:
1. after successfully completing the test Run
procedures, make sure the mill is turned OFF
and the spindle is stopped.
2. Move the spindle speed range selector to the
LoW position (refer to Selecting Spindle
Speed Range on Page 30 for detailed instruc-
tions).