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Model G0773 (Mfd. Since 12/14)
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, allowing the spindle
to run the same amount of time at each speed, until
reaching the maximum spindle speed. Following
the break-in procedure in this progressive man-
ner helps minimize any potential wear that could
occur until 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.
Lathe Spindle Break-In
1. Successfully complete Test Run procedure
beginning on Page 24.
2. Run lathe spindle at 150 RPM for minimum
of 5 minutes in the forward ("FOR") direction,
and then another 5 minutes in the reverse
("REV") direction.
Note: During Installing V-Belt in the
Assembly section on Page 23, spindle speed
was set at 150 RPM.
3. Press Emergency Stop Button to turn lathe
OFF.
4. DISCONNECT MACHINE FROM POWER!
5. Set spindle speed to 1130 RPM and repeat
the same process of running spindle for 5
minutes in each direction.
Note: If necessary, refer to Setting Spindle
Speed on Page 41 for detailed instructions.
6. Set spindle speed to 2100 RPM and repeat
the process once again.
Congratulations! The lathe spindle break-in is
complete.
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 ........................ Page 34
• Cross slide backlash adjustment .....Page 71
• Leadscrew backlash ........................Page 71
• Gib adjustments ..............................Page 72
Recommended
Adjustments
Mill Spindle Break-In
1. Successfully complete Lathe Spindle
Break-In.
2. Run mill spindle at lowest speed (100 RPM)
for a minimum of 10 minutes.
3. Run mill spindle at highest speed (2500
RPM) for 10 minutes.
4. Rotate spindle speed dial all the way counter-
clockwise to "0", then press Emergency Stop
button.
Congratulations! The mill spindle break-in is
complete.