Harbor Freight Tools 6510 - Manual (Page 13)

Page 13 For technical questions, please call 1-800-444-3353. SKU 6510
OperatiOn
caution: The grinding wheels must al-
ways be checked for cracks of imper-
fections. This is done with the “ring
test”. Tap the wheel gently near the
outer rim with the handle of a screw-
driver; you should hear a clear bell-
like ringing. if a dull thud occurs do
not use the wheel! This means the
wheel has been damaged and will,
most likely, come apart during normal
operations.
Operation notes
The 10” Bench Grinder comes as-
sembled with a coarse GRINDING
WHEEL (2) and a fine GRINDING
WHEEL. Determine which wheel is
which before attempting to use the
Bench Grinder.
The workpiece will quickly become
heated. Frequently quench the work-
piece in water during the grinding
process. If the metal becomes heat-
ed so much that it gets blue-colored,
it will be too soft to be useful. You
must grind off the part that is colored,
cool the workpiece, and start again.
General Operation
Obtain a tray that is large enough 1.
for the workpiece to fit into, fill it with
water and place it near the Bench
Grinder.
Turn the Bench Grinder on.
2.
Once the GRINDING WHEEL has 3.
reached full speed, bring the work-
piece up to the wheel gently and
without jarring.
Use the TOOL REST (7) to steady
4.
the workpiece.
The workpiece will become quickly
5.
heated. Frequently quench it in wa-
ter.