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TROUBLESHOOTING GUIDE
WARNING
To avoid injury from accidental starting, always turn switch OFF (O) and unplug the tool before moving,
replacing the blade or making adjustments.
Consult Hitachi Authorized Service Center if for any reason the motor will not run.
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
Breaking blades 1. Wrong tension.
2. Overworking blades.
3. Wrong blade application.
4. Twisting blade in wood.
1. Adjust blade tension. See BLADE
REMOVAL AND INSTALLATION
section.
2. Reduce feed rate. See BLADE
REMOVAL AND INSTALLATION
section.
3. Use narrow blade. See BLADE
SELECTION section.
4. Avoid side pressure on blade.
See BLADE REMOVAL AND
INSTALLATION section.
Motor will not run. 1. Defective cord or plug.
2. Defective motor.
3. Blown overload breaker.
1. Replace defective parts before
using saw again. See ELECTRICAL
REQUIREMENTS AND SAFETY
section.
2. Call Service Center. Any attempt
to repair this motor may create a
HAZARD unless the repair is done
by a qualified technician.
3. Push the motor switch to the OFF
(O) position. Let the motor cool.
See OPERATION-OVERLOAD
BREAKER section.
Excessive vibration.
NOTE: There will always be
some vibration present when
the saw is running because
of motor operation.
1. Improper mounting of saw.
2. Unsuitable mounting surface.
3. Loose table or table resting against
motor.
4. Loose motor mounting.
1. See mounting instructions in
this manual for proper mounting
technique.
2. The heavier your workbench is, the
less vibration will occur. A plywood
workbench will not be as good a
work surface as the same size solid
lumber.
3. Tighten the table lock knob.
4. Tighten motor mounting screw.
Blade run out.
Blade not in line with arm
motion.
1. Blade holders not aligned. 1. Loosen blade holder lock knob
holding blade holder to arms. Adjust
position of blade holders. Retighten
blade holder lock knob. See BLADE
REMOVAL AND INSTALLATION
section.