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TROUBLE
SHOOTING
-- SAW MOTOR
(Continued)
TROUBLE
Motor
starts slowly
or fails to come
up
to full speed.
Motor overheats.
Starting
switch
in
motor
will not
operate.
Motor stalls
(resulting
in blown
fuses or tripped
circuit
breakers).
Frequent opening of
fuses or circuit
breakers.
1.
2
3.
1.
2
2,
3
PROBABLE
CAUSE
Low voltage
will not
trip
relay.
Windings
burned
out
or open.
Sawdust
inside
motor.
Motor
overloaded.
Improper
cooling.
(Air
circulation
restricted
through
motor
due to
sawdust,
accumulating
inside
of saw).
Burned
switch
contacts
(due to extended
hold-in
periods
caused
by low
line voltage,
etc.)
Shorted
capacitor
Loose
or broken
connections.
1. Starting
switch
not
operating;
2. Voltage
too
low to permit
motor
to reach
operating
speed.
3. Fuses
or circuit
breakers
do not have
sufficient
capacity.
1. Motor overloaded.
2. Fuses or circuit
breakers
do not have sufficient
capacity.
3. Starting
switch
not
operating
(motor does
not reach speed).
REMEDY
1. Request
voltage
check
from
the power
company.
2. Have
motor
repaired
or replaced.
3. Blow
or vaccuum
sawdust
from
motor.
1. Feed work slower into blade.
2. Clean out sawdust to provide
normal air
circulation
through
motor,
See "Maintenance
and Lubrication"
section.
1. Have switch replaced and requesta voltagecheck
from the power company.
2. Have capacitor
tested and replace
if defective.
3. Have wiring checked
and repaired.
1. Have switch replaced,
2. Request voltage check from the power company.
3. install
proper
size fuses
or circuit
breakers.
1. Feed work
slower
into
blade.
2. Install
proper
size fuses
or circuit
breakers.
3, Have switch
replaced.
43
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