Operating Instructions
1.
Check Coolant: Low coolant level causes
foaming and high blade temperatures. Dirty or
weak coolant can clog pump, causes crooked
cuts, low cutting rate and permanent blade
failure. Dirty coolant causes the growth of
bacteria with ensuing skin irritation.
2.
Keep vise slides clean and oiled.
3.
Clean chips from blade wheels and wheels
housing.
4.
Saw Guide: Keep saw guides properly adjusted.
Loose guides will affect cutting accuracy.
5.
Saw Blade: Make sure the saw blade is sharp.
6.
Blade Speed: Make sure the blade speed sets
correctly for workpiece material and shaped.
7.
Check Blade Tension: Particularly after initial cuts
with a new blade.
Blade Selection
A.
Never use a blade so coarse that less than 3
teeth are engaged in the workpiece at any time.
(Too few teeth will cause teeth to strip out.)
B.
Never use a blade finer than required to obtain a
satisfactory surface finish or satisfactory flatness.
(Too many teeth engaged in the workpiece will
prevent attainment of a satisfactory sawing rate;
frequently cause premature blade wear;
frequently produce
“dished” cuts or the cuts are
neither square nor parallel.)
C.
The chart which follows is not expected to be
exactly correct for all cases. It is intended as a
general guide to good sawing practices. Your
blade supplier or the qualified engineers should
be your most reliable source of correct
information for operational details of saw blades
and their use.
THE SELECTION OF SAWBLADES
Cutting
Material
Sawblade
<3mm
>5mm
>50mm
>100mm >150mm >200mm
<0.12
”
>0.2
”
>2
”
>4
”
>6
”
>8
”
(HSS) 14T
(HSS) 6/10T
(HSS) 5/8T
(HSS) 4/6T
(HSS) 3/4T
(HSS) 2/3T
(HSS) 1/2T
(HCS) 10T
(HCS) 8T
(HCS) 6T
(HCS) 4T
(HCS) 2T
Remarks: HSS-High Speed Steel Sawblade
HCS-High Carbon Steel Sawblade
NOTE:
1.
When cutting standard wall pipe, tubes, channel
iron, angle iron, and I beam, a 10 pitch saw blade
of wave-set type or sawblade of (HSS) 6/10T is
frequently used for good advantage.
2.
Tubes or structure with wall thickness or web
thickness of 1/2
” or more usually uses an 8 or 6
pitch blade or sawblade of (HSS) 4/6T
satisfactorily.
3.
When rectangular solid bar is to be sawed, the
work should, whenever possible, be loaded with
the thinnest cross section exposed to the blade
teeth. The pitch (or number of teeth per inch of
blade) selected must provide engagement of at
least 3 teeth in the workpiece. Should application
of this rule not be possible because the thinnest
cross section is too thin, the piece must be loaded
with the wider dimension exposed to the saw
teeth and a coarser blade selected from the listing
of recommendations for round and square solid
bars.
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