Troubleshooting Guide - KNOVA KN M-2500N Manual Del Usuario

TROUBLESHOOTING GUIDE

WARNING
To avoid injury from accidental starting, always turn switch OFF and unplug the tool before
moving, replacing the blade or making adjustments.
TROUBLESHOOTING GUIDE - MOTOR
PR OBL EM PR OBL E M C AU S E
1. Motor brushes not sealed or lightly sticking.
Brake does
not stop the
2. Motor brake overheated from use of defective
blade within
or wrong size blade or rapid ON/OFF cycling.
6 seconds.
3. Arbour bolt loose.
4. Brushes cracked, damaged, etc.
5. Other.
Motor does 1. Limit switch failure
not start.
2. Brush worn.
3. Fuse blown or circuit breaker tripped
on home panel.
Brush spark 1. Brush worn.
when switch
2. Other.
released.
TROUBLESHOOTING GUIDE - SAW OPERATION
PR OBL E M C AU S E
PR OBL EM
Blade hits 1. Misalignment.
table.
Angle of cut
1. Mitre table unlocked.
not accurate.
2. Sawdust under table.
Can not adjust
mitre.
Cutting arm 1. Loose pivot points.
wobbles.
Cutting arm
1. Pivot bolt too tight.
will not fully
2. Pivot spring not replaced
raise, or blade
properly after service.
guard won't
3. Sawdust build-up.
fully close.
Blade binds,
1. Improper operation.
jams, burns
2. Dull or warped blade.
wood.
3. Improper blade size.
4. Wood is moving during cut.
1. Saw blade not round / damaged / loose.
Saw vibrates
or shakes.
2. Arbour bolt loose.
TROUBLESHOOTING GUIDE - LASER GUIDE
PR OBL E M C AU S E
PR OBL EM
The laser 1. The batteries are dead.
guide fails
2. The battery contacts need adjustment.
to turn on.
SU GG ESTED C ORR ECTIVE ACT IO N
1. Inspect/clean/replace brushes.
See MAINTENANCE section.
2. Use a recommended blade. Let cool down. See
REMOVING OR INSTALLING THE BLADE section.
3. Retighten. See REMOVING OR
INSTALLING THE BLADE section.
4. Replace brushes.
5. Contact Knova Service Centre.
1. Replace limit switch.
2. Replace brushes. See MAINTENANCE section.
3. Verify there is electrical power at the outlet.
1. Replace Brushes. See MAINTENANCE section.
2. Contact Knova Service Centre.
SU GG ESTED C ORR ECTIVE ACT IO N
1. See ADJUSTMENT - Cutting Head
Downward Travel Adjustment section.
1. See OPERATION
- Mitre Angle Adjustment section.
2. Vacuum or blow out dust. WEAR EYE PROTECTION.
1. Contact Knova Service Centre.
1. Loosen pivot bolt lock nut
(see adjustment section).
2. Contact Sears Service Centre.
3. Clean and lubricate moving parts.
1. See BASIC SAW OPERATION section.
2. Replace or sharpen blade.
3. Replace with 10 in. diameter blade.
4. Use hold down clamp to secure workpiece to table.
1. Replace blade.
2. Tighten arbour bolt.
SU GG ESTED C ORR ECTIVE ACT IO N
1. Replace with new AAA batteries.
2. Reload the batteries and make certain that they
make solid contact to the battery spring.
16