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17
12.0 Blade speed recommendations
Speed FPM Material
90 Tool steel, stainless steel, alloy steel, copper alloys, hard cast iron
130 Mild steel, soft cast iron, medium hard brass, medium hard bronze
170 Soft brasses and bronzes, hard aluminum
235 Plastic, soft and medium aluminum, other light materials
370 Plastic, wood, other light materials
Table 4
13.0 Troubleshooting HBS-1220MSA/MSAH
Table 5
* WARNING: Some corrections may require a qualified electrician.
Symptom Possible Cause Correction*
Motor will not start. No incoming power. Check plug connection.
Blown electrical panel fuses or tripped
circuit breakers.
Replace fuses, or reset breakers.
Defective motor, switch, power cable, or
plug.
Qualified electrician/service personnel
should inspect these items.
Motor runs too hot. Excessive blade tension. Reduce tension.
Drive belt tension too high. Reduce belt tension.
Blade too coarse for material (especially
with tubular stock).
Use blade with finer tooth pitch.
Blade too fine for material (especially with
heavier, soft material).
Use blade with coarser tooth pitch.
Insufficient gear lubrication. Make sure gearbox is filled to sight glass.
Band Saw vibrates
excessively.
Base on uneven surface. Adjust base for even support.
Saw blade has cracks. Replace blade immediately.
Too heavy a cut. Reduce feed rate and blade speed.
Miter cuts not accurate. Material not clamped properly, or vise
screws not tightened.
Tighten vise screws securely. Use an
adjustable square or protractor to verify
angle settings.
Blade is worn, cutting crooked. Replace blade.
Cuts not square.
Feed rate too fast. Decrease feed rate.
Incorrect blade toothing in relation to
workpiece.
Check a machinist’s handbook for
recommended blade type.
Blade is worn, cutting crooked. Replace blade.
Incorrect adjustment of guide bearings. Readjust guide assemblies.
Guide bearings are worn. Replace guide bearings.
Blade guide assemblies too far apart. Adjust guide assemblies as close to
workpiece as possible.
Workpiece incorrectly positioned in vise. Check positioning and clamping in the
vise.
Poor blade tension. Check and correct if needed.
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