Spindle Bearing Break-In - Grizzly G0836 Owner's Manual

Spindle Bearing
Break-In
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.
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.
-22-
To perform spindle
procedure:
1. Close chip guard and turn FWD/REV switch
to FWD (see Figure 20) to run spindle in for-
ward direction.
Spindle Speed
Tachometer
Spindle
Speed Dial
FWD/REV
Switch
Figure 20. Controls for spindle bearing break-in
procedure.
2. Use spindle speed dial to turn machine ON,
then set spindle speed at 100 RPM. Run for
10 minutes in forward direction. Turn spindle
speed dial to "0" to stop spindle, turn FWD/
REV switch to REV and run spindle in reverse
at 100 RPM for 10 minutes.
Note: Switching spindle rotation from FWD to
REV without turning spindle speed dial OFF
first will result in FAULT mode and possible
damage to machine. Always turn spindle
speed dial OFF before changing spindle
direction.
3. Repeat the previous step at spindle speeds
of 500, 1000, and 2000 RPM. Be sure to run
the spindle for a minimum of 5 minutes in
each direction of rotation at each speed.
The spindle break-in of the machine is now
complete!
Model G0836 (Mfd. Since 09/17)
bearing break-in
Spindle
Chip
Guard