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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 before
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.
Complete spindle bearing break-in proce-
dure to prevent rapid wear and tear of
spindle components once mill is placed into
operation.
DO NOT perform this procedure indepen-
dently of Test Run section. Mill could be
seriously damaged if controls are set differ-
ently than instructed in that section.
Vertical Spindle Break-In
1. Run vertical spindle at 140 RPM for 10
minutes (see Page 36 for details on how to
change speeds).
2.
Reverse spindle rotation direction and run
spindle for an additional 10 minutes.
3.
Run spindle for 5 minutes in each direction
of spindle rotation for all seven remaining
spindle speeds, progressively increasing in
RPM to highest speed.
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Horizontal Spindle Break-In
1. Run horizontal spindle at 48 RPM for 10
minutes (see Page 37 for details on how to
change speeds).
2.
Reverse spindle rotation direction and run
spindle for an additional 10 minutes.
3.
Run spindle for 5 minutes in each direction of
spindle rotation for all 11 remaining spindle
speeds, progressively increasing in RPM to
highest speed.
Congratulations! Spindle Break-In is complete.
We recommend changing the headstock oil
before operating the machine further (refer to
Lubrication on Page 45).
Inspections &
Adjustments
The following list of adjustments were performed
at the factory before the machine was shipped:
•
X-Axis Leadscrew Backlash ........... Page 60
•
Gib Adjustments ..............................Page 61
Be aware that machine components can shift
during the shipping process. Pay careful attention
to these adjustments during machine operation.
If adjustments are not set per procedures in this
manual or personal preferences, re-adjust them.
Since the head has been moved around for
shipping purposes, you will need to tram it
so that the spindle is perpendicular to the
table. Refer to the Tramming Mill Head sec-
tion on Page 58 for detailed instructions.
During first 16 hours of use, V-belts will
stretch and seat into pulley grooves. V-belts
must be properly tensioned after this peri-
od to ensure proper power transmission
and avoid reducing life of belts. Refer to
Tensioning/Replacing V-Belts on Page 53.
Model G0827 (Mfd. Since 11/17)
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