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H8148/H8149/H8150 Heavy Duty Bench Ginders
4. Remove the outer wheel flange and the
paper disc. Pull the wheel free from the arbor,
but leave the paper disc and a wheel flange
on the other side of the wheel.
Figure 13. Assembly order for wheel installation.
NEVER assemble a grinding wheel on the
arbor without paper or fiber discs between
the wheel and the flange. Omitting the discs
can put uneven stress on the wheel, causing
it to crack and possibly fly apart. ALWAYS
“ring test” a wheel before assembly to make
certain it has no cracks or flaws.
6. Run a new wheel for at least one minute
while standing clear of the line of rotation. If a
wheel does have defects it will generally fail
as soon as it gets up to full speed.
5. Mount the new wheel as shown in Figure 13
and 14. Always make certain there is a paper
or fiber disc between the wheel flanges and
the wheel itself. Tighten the arbor nut snugly
but DO NOT over-tighten. Over-tightening
can crack the wheel.
Figure 14. Grinding wheel installation order.