Troubleshooting Guide - Hitachi Koki CW 40 Manual De Instrucciones

English
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
Breaking blades
Motor will not run.
Excessive vibration.
NOTE: There will always be
some vibration present when
the saw is running because
of motor operation.
Blade run out.
Blade not in line with arm
motion.

TROUBLESHOOTING GUIDE

POSSIBLE CAUSES
1. Wrong tension.
2. Overworking blades.
3. Wrong blade application.
4. Twisting blade in wood.
1. Defective cord or plug.
2. Defective motor.
3. Blown overload breaker.
1. Improper mounting of saw.
2. Unsuitable mounting surface.
3. Loose table or table resting against
motor.
4. Loose motor mounting.
1. Blade holders not aligned.
WARNING
1. Adjust blade tension. See BLADE
2. Reduce feed rate. See BLADE
3. Use narrow blade. See BLADE
4. Avoid side pressure on blade.
1. Replace defective parts before
2. Call Service Center. Any attempt
3. Push the motor switch to the OFF
1. See mounting instructions in
2. The heavier your workbench is, the
3. Tighten the table lock knob.
4. Tighten motor mounting screw.
1. Loosen blade holder lock knob
– 20 –
CORRECTIVE ACTION
REMOVAL AND INSTALLATION
section.
REMOVAL AND INSTALLATION
section.
SELECTION section.
See BLADE REMOVAL AND
INSTALLATION section.
using saw again. See ELECTRICAL
REQUIREMENTS AND SAFETY
section.
to repair this motor may create a
HAZARD unless the repair is done
by a qualified technician.
(O) position. Let the motor cool.
See OPERATION-OVERLOAD
BREAKER section.
this manual for proper mounting
technique.
less vibration will occur. A plywood
workbench will not be as good a
work surface as the same size solid
lumber.
holding blade holder to arms. Adjust
position of blade holders. Retighten
blade holder lock knob. See BLADE
REMOVAL AND INSTALLATION
section.