Motor
NOTE: Motors used on wood working tools are particularly susceptible to the accumulation of sawdust and wood chips
and_should be blown out or "vacuumed" frequently to prevent interference wi_t_ normal motor ventilation.
Trouble
Excessive noise
Motor fails to develop full
power. NOTE: Low volt-
age (Power output of
motor decreases in volt-
age at motor terminafs,
For example, a reduction
of 10% in voltage causes
a reduction of 19% in
maximum power output
of which the motor is
capable, and a reduction
of 20% in voltage causes
a reduction of 36% in
maximum power output.)
Motor starts slowly or fails
to come to full speed
Motor overheats
Motor stalls (resulting in
blown fuses or tripped cir-
cuit breakers.)
Frequent opening of
fuses or circuit breakers
Probable Cause
t. Motor
2. Pulley set screw is loose.
t. Circuit overloaded with
lights, appliances and other
motors.
2. LJndersize wires or circuit
too long,
3 General overloading of
power company facilities.
t.
2,
3.
t.
2.
Windings burned out or
open.
Drive belt tension too high.
Defective start capacitor
Motor overloaded
improper cooling (Air circu-
lation restricted through
motor due to sawdust accu_
mLflating inside of motor.)
!, Voltage too low to permit
motor to reach operating
speed.
2. Fuses or circuit breakers do
not have sufficient capacity.
3. Circuit overloaded with
lights, app liances and other
motors.
1, Motor overloaded
2. Fuses or circuit breakers do
not have sufficient capacity.
3. Circuit overloaded with
lights, appliances and other
motors.
Remedy
1,Have moto_ _checked by qualified service techni-
cian. Repair service is available at your nearest
Sears Service Center.
2, Tighten set screw.
1. Do not use other appliances or motors on same cir_
cuit when using the jointer.
2. Increase w_re sizes, or reduce length of wiring. See
"Motor Spec:ificat_ons and Electrical Requirements"
section,
3, Request a voltage check from the power company.
1. Have motor repaired or replaced
2. Adjust belt tension
3, Have start capacitor replaced
!. Feed work slower into blade.
2. Clean out sawdust to provide normal air circulation
through motor. See "Maintenance and Lubrication"
section.
1. Request voltage check from the power company
2. install proper size fuses or circuit breakers. See
"Electrical Connection" section
3. Do not use other appliances or motors on same cir-
cult when using the jointer.
1. Feed work slower
2. install proper size fuses or circuit breakers. See
"Electrical Connection" section
3. Do not use other appliances or motors on same cir-
cuit when using the jointen
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