Grizzly 12" Cold Cut Saw G0682 - Manual (Page 29)

g0682 12" Cold Cut saw (mfg. since 12/10)
-27-
blade Changes
The teeth of saw blades
are sharp and can easily
cut fingers and hands.
Always wear heavy leath-
er gloves when handling
saw blades.
Tools Needed: Qty
hex Wrenches 5, 10mm ..............................1 ea.
To replace the blade:
1. disCoNNeCt saW From poWer!
2. disconnect the blade guard linkage by remov-
ing the cap screw that connects it to the saw
guard (
figure 42).
figure 42. removing guard linkage.
Cap screw
blade guard
linkage
arbor Cap screw
blade break-in
proper break-in is important for the cutting per-
formance and longevity of the blade. during the
break-in period, only mild pressure should be
exerted on the blade (about half of the normal
feed pressure for a properly broken-in blade).
the duration of the break-in period is determined
by the hardness of the material cut. the break-
in period is defined in terms of square inches of
material cut.
—For hard materials, such as steel, the
break-in period is the first 50 square inches
of material cut.
—For soft materials, such as aluminum,
the break-in period is the first 150 square
inches of material cut.
to determine the square inches of a cut, calculate
the area of the cross-section of the workpiece.
Keep in mind when cutting hollow-section pieces
that the area only includes the solid walls of
the workpiece. refer to
figure 41 to calculate
approximate square inches for many typical cuts.
D
L
H
L
Th
Th
H A = L x H
A = ( D ⁄
2
)² x π
A =Area
H =Height
L =Length
D =Diameter
Th =Material
Thickness
π =3.14
A D x π x Th
A 2H + 2L x Th
figure 41. Calculating cut area for break-in.