Grizzly T33903 User Manual

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Model T33903/T33904 (Mfd. Since 07/23)
Spindle Break-In
Complete spindle bearing break-in proce-
dure to prevent rapid wear and tear of spin-
dle components once drill press is placed
into operation.
To perform spindle break-in:
1.
Make sure spindle area is free of obstructions.
2. Configure V-belts for a spindle speed of
210 RPM. Refer to Changing Spindle Speed
on Page 29.
3.
Connect machine to power and run spindle
for 10 minutes.
4.
Turn machine OFF, allow spindle to come
to a complete stop, then DISCONNECT
MACHINE FROM POWER!
5.
Configure V-belts for spindle speed of 390
RPM (refer to Changing Spindle Speed on
Page 29), then connect machine to power.
6.
Run spindle for 5 minutes at 390 RPM.
7.
Repeat Steps 4–6 for each speed listed
below in progressive order.
a. 1130 RPM
b. 1735 RPM
c. 3020 RPM
8.
Turn machine OFF.
Congratulations! Spindle break-in is now complete.
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.

Grizzly T33903 Specifications

General

Brand	Grizzly
Model	T33903
Category	Power Tool
Language	English