Troubleshooting Guide - Craftsman 351.221140 Owner's Manual

TOPREVENT I NJURY TOYOURSELF o r damage tothetablesaw, t urnthe power switchtothe"OFF" position and
unplug thepower cordfromthe electrical receptacle b eforemaking anyadjustments.
PROBLEM
Motor does not
start:
Motor stalls,
thermal-overload
trips or circuit
breakers open
frequently:
Motor starts
slowly or fails to
come to full speed:
Motor running too
hot:
Handwheels are hard
to turn:
Miter gauge does not
move smoothly:
Workpiece binds,
burns or stalls motor
when ripping:
Saw blade does not
cut true at 90 or 45
degrees:
LIKELY CAUSE(S) SOLUTION
1. 1.
Switch not pressed in far enough or switch
in the "OFF" position.
2. Defective switch.
3. Defective capacitor.
4. Low line voltage.
5. Defective motor.
1. Circuit overload.
2. Low line voltage.
3. Motor overload.
4. Incorrect fuses on circuit breakers.
5. Short circuit in motor; loose connections or
worn insulation on lead wires.
1. Low line voltage.
2. Defective motor windings.
3. Defective capacitor.
1. Restricted air circulation due to dust
accumulation.
2. Motor overload.
1. Handwheel Lock Knob has not been loosened.
2. Dust accumulation on tilting or beveling gears
inside of cabinet.
1. Miter gauge groove and miter gauge bar are
dirty.
2. Set-screws in miter gauge bar are out of
adjustment.
1. Blade is dull.
2. Board is warped or twisted.
3. Rip fence is not parallel to blade.
1. Blade is dull.
2. Indicator arrow is not properly adjusted.
3. Positive stops are not set properly.
Depress switch in 1/2 inch or make sure switch is in the
"ON" position.
2. Have switch replaced.
3. Have capacitor replaced.
4. Correct low line voltage condition. If saw is plugged into an
extension cord, plug saw directly into wall outlet.
5. Have motor replaced.
NOTE: 3 and 4 must be done by a qualified service
technician.
1. Blade is warped.
2. Drive belt is damaged.
1,
2.
Reduce circuit load (turn off other appliances)
Correct low line voltage condition. Check line voltage with a
multi-meter. If saw is plugged into an extension cord,
unplug saw from extension cord and plug saw directly to
wall outlet.
3. Reduce load on motor, slow down feed rate of workpiece
being pushed into blade.
4. Have correct fuses on circuit breakers installed by a quali-
fied electrician.
5. Inspect terminals in motor for damaged insulation and
shorted wires and have them replaced. Check all power
lead connections.
1,
Correct low line voltage condition. Check line voltage with a
multi-meter. If saw is plugged into an extension cord,
unplug saw from extension cord and plug saw directly to
wall outlet.
2. Have motor replaced.
3. Have capacitor replaced
1. Clean dust and restore normal air circulation around motor.
2. Reduce load on motor,
1. Loosen Handwheel Lock Knob.
2. Clean off tilt and bevel gear assemblies.
1. Clean miter gauge groove and bar.
2. Adjust set-screws in miter gauge bar.
1. Sharpen or replace blade.
2. Replace board.
3. See "Fence Alignment" in Operation and Adjustment
Section.
1. Sharpen or replace blade.
2. Adjust bevel indicator arrow.
3. Adjust 90 and 45-degree positive stops.
Rip fence does not 1. Rip fence is not mounted properly. 1. See "Fence Alignment" in Operation and Adjustment Section.
move smoothly: 2. Rails are dirty or sticky. 2. Clean and apply paste wax to rails.
Saw vibrates
excessively:
3. Work surface is uneven.
4. Saw is not mounted securely.
1. Replace blade.
2. Replace drive belt.
3. Reposition saw on a flat surface. Adjust leveling feet, if
supplied with saw.
4. Tighten all hardware.
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