Woodstock 6" BENCH GRINDER M1051 - Manual (Page 11)

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M1051 6" Bench Grinder
SET
UP
The tool rest supports the workpiece during grinding.
Certain types of grinding may require jigs or accessories
to assure the proper angle of the work piece against the
wheel.
The eye shield must be positioned between the grind-
ing wheel and your face during grinding. The eye shield
is NOT a substitute for safety glasses or a safety face
shield. You must wear ANSI approved face and eye pro-
tection.
Using the hardware from the Inventory list on Page 7;
assemble the tool rest and eye shield as they are shown
in Figure 5.
Tool Rest and Eye Shield
Figure 5. Tool rest and eye shield
assembly.
Before installing the included grinding wheels, check
them for integrity by performing a “ring test.” Hang on a
string, then lightly tap the rim of the wheel with a piece
of wood such as the handle of a hammer. The wheel
should have a ringing or harmonic type of sound. If the
wheel responds with a dull thud it may indicate that the
wheel has cracks. Do not use a wheel which is suspected
of having cracks, or if there are visual chips, nicks or
dents in the wheel surface. These discontinuities can
lead to wheel failure causing the wheel to fly apart at
operating speed.
Always be sure to use a wheel that is rated for operating
at speeds equal to or greater than 3450 RPM. Install the
grinding wheel, paper disk, wheel flange, and nut in the
order shown in Figure 6, and then attach the side cover.
Note: The arbor shaft and nut on the left hand side of
the grinder is a left hand thread, so tightening it will
require turning it counterclockwise.
Grinding Wheel
Installation
Figure 6. Wheel installation order.
NEVER assemble a grinding wheel on
the arbor without paper or fiber discs
between the wheel and the flange.
Omitting the discs can put undue stress
on the wheel causing it to crack and
possibly fly apart. ALWAYS “ring test” a
wheel before assembly to make certain
it is sound with no cracks or flaws.