Troubleshooting - Sears Craftsman 113.221770 Owner's Manual

Troubleshooting
WARNING: To avoid injury from accidental start, turn switch "OFF" and always remove plug from the power
source before trouble shooting.
TROUBLE I
I
Excessive vibration
Cannot make square cut
when crosscutting
Cut binds, burns or
stalls motor when rip-
ping.
Bevel cut not true 90 ° or
45 °
Elevating ha ndwhee]
PROBABLE CAUSE
1. Blade out of balance.
1. Miter gauge not adjusted properly.
1. Dull blade or improper tooth set.
2. Warped board
hard to turn I screw.
12. Over tightening handwheel when
, raising blade.
Excessive blade wobble 1. Blade has excessive wobble.
(causes oversize kerr 2. Blade loose.
and unsmooth cut.)
Excessive noise 1. Motor
Motor starts slowly or 1. Circuit overloaded with lights
fa Is to deve op fu app lances and other motors.
power. NOTE: A low 2. Undersize wires or circuit too long.
voltage condition will I
cause the power output I
of the motorto decrease 3. General overloading of power
rapidly. For example, a company facility. (In some sections
reduction of 10% in volt- . of the country, demand for electri-
age causes a reduction ' cal powermayexceedthe capacity
of 19% in maximum
of existing generating and distribu-
[power output of which tion systems.)
the motor is capable. 4. Incorrect fuses or circuit breakers
' in power line.
Motor overheats.
i
Motor stalls (resulting in
b!own fuses or tripped
circuit breakers.)
Frequent opening of
fuses or circuit breakers
Fence is hard to slide
REMEDY
1. Discard blade and use a different blade.
1. See "Adjustments" section "Miter gauge"
t. Sharpen or replace blade.
2. Make sure concave side is facing "down", feed
slowly.
3. Rip fence not parallel to blade. 3. See "Assembly" section, "Aligning Rip Fence."
4. Spreader out of alignment 4. See "Assembly" section, "Installing Blade Guard."
1. Stop screw not properly adjusted. 1. See "Adjustments" section, "Blade tilt, or square-
ness of blade to table."
1. Sawdust on threads of elevating 1. See "Maintenance and Lubrication" section.
2. Don't over tighten handwheel. Check to see if
Key No. 33 on page 38 is binding.
1. Replace blade.
2. See "Installing Sawblade" section.
1. Have motor checked by Sears Service Center.
1. Do not use other appliances or motors on the
same circuits when using the saw.
'2. Increase wire sizes, or reduce length of wiring.
See "Motor Specifications and Electrical
Requirements" section.
3. Request a voltage check from the power com-
pany.
4. Install correct fuses or circuit breakers.
5. Bad/worn brushes 5. Have brushes replaced by Sears Service Center.
1. Motor overloaded. 1. Do not cut so fast. Feed work slower into blade.
2. Improper cooling, (motor air circu- 2. Clean out sawdust to provide normal air circula-
lation restricted due to sawdust lion through molor. See "Maintenance and Lubri-
accumulating ns de of saw). cat on" sect on.
1. Voltage too low to permit motor to 1. Request voltage check from the power company.
reach operating speed.
2. Fuses or circuit breakers do not 2. Install proper size fuses or circuit breakers.
have sufficient capacity.
3. Feed rate too fast or dull blade. 3. Allow motor to cool and reset saw breaker.
1. Motor overloaded 1. Don't cut so fast. Feed work slower into blade.
2 Fuses or circuit breakers do not 2. Install proper size fuses or circuit breakers.
have sufficient capacity.
3. Feed rate too fast or dull blade. 3. Allow motor to cool and reset saw breaker.
1. Front fence rail surface is dry. 1. Apply a coat of paste wax to the top, front and-
• rear edge of the front fence rail surfaces.
36