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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.
You must complete this procedure to main-
tain the warranty. Failure to do this could
cause rapid wear-and-tear of spindle bear-
ings once they are placed under load.
To perform spindle break-in:
1.
Successfully complete the Test Run proce-
dure beginning on Page 24.
2.
Disengage half nut lever and feed selection
lever.
3.
Run spindle at 70 RPM for 10 minutes in
each direction (first forward, then reverse).
-26-
4.
Turn lathe OFF. Set spindle speed and range
levers for 115 RPM (see Setting Spindle
Speed on Page 45 for more information),
then run lathe for 5 minutes in each direction.
5.
Repeat Step 4 for following speeds, pro-
gressing from lower to higher RPMs:
•
300 RPM
•
755 RPM
•
1255 RPM
•
2000 RPM
6.
Press Emergency Stop/RESET button to turn
lathe OFF. Reset switch.
Congratulations! Spindle break-in is complete. We
recommend changing the headstock and gearbox
oil before operating the machine further (refer to
Lubrication on Page 63).
Recommended
Adjustments
The following adjustments have been made at the
factory. However, because of the many variables
involved with shipping, we recommend you verify
these adjustments to ensure the best results.
Factory adjustments that should be verified:
•
Tailstock alignment (see Page 36).
•
Cross slide and compound slide backlash
adjustment (see Page 74).
Gib adjustments (see Page 75).
•
Model G0782 (Mfd. Since 10/15)
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