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Model G0704 (Mfd. Since 04/13)
-21-
To perform spindle break-in process:
1. Successfully complete Test Run procedure
beginning on Page 20.
2. Open the Emergency Stop button cover and
press the green button to start the spindle.
3. With the speed range selector knob in the
"L" (low) position, turn mill/drill ON and run
the spindle at 600 RPM for a minimum of 10
minutes in each direction of rotation.
4. Turn the mill/drill OFF.
5. With the speed range selector knob in the
"H" (high) position, turn mill/drill ON and run
spindle at 1000 RPM for 5 minutes in each
direction of rotation.
6. Repeat Step 5 at 2000 RPM.
7. Turn the mill/drill OFF.
Congratulations! The spindle break-in is complete.
Spindle Break-In
The spindle break-in procedure distributes lubri-
cation
throughout the bearings to
reduce the risk
of early
bearing failure
if there are any "dry" spots
or areas where lubrication has settled in the bear-
ings. You
must complete this procedure b
efore
placing
operational loads on the spindle
for the
first time when the machine is new or if it has
been sitting idle for longer than 6 months.
Always start the spindle break-in at the lowest
speed to minimize wear if there
are dry spots.
Allow the spindle to run long enough to warm up
and distribute the bearing grease, then incremen-
tally increase spindle speeds and repeat this pro-
cess at each speed until reaching the maximum
spindle speed. Following the break-in procedure
in this progressive manner helps minimize any
potential wear that could occur before lubrication
is fully distributed.
DO NOT perform this procedure indepen-
dently of the Test Run section. The machine
could be seriously damaged if the controls
are set differently than instructed in that
section.
Complete the spindle bearing break-in pro-
cedure to prevent rapid wear and tear of
spindle components once the machine is
placed into operation.