Craftsman 113.299210 - Manual (Page 46)

Motor
N O TE: M otors used on wood w orking tools are particularly susceptible to the accum uiation of saw dust and wood chips
and should be blow n out or “Vacuum ed" frequenfiy to prevent interference w ith norm al m otor ventilation
Trouble Probable Cause Remedy
Excessive N oise 1, M otor 1 H ave m otor checked by qualified service technician
R epair service is available at your nearest S ears
store.
M otor fails to develop
full power
NOTE:
Low
Voltage;
(Power output of m otor
decreases rapidly with
decrease in voltage at
m otor term inals For
rpdnrtinn of
10% in voltage causes
a reduction of 19% in
m axim um pow er output
of w hich the m otor is
capable, and a reduc­
tion of 20% in voltage
causes a reduction of
36% in m axim um power
output
)
1- C ircuit overloaded w ith lights,
appliances and other m otors
2 U ndersize wires or circuit too
long
3 G eneral overloading of pow er
com pany facilities, (In som e
sections of the country,
dem and for electrical pow er
m ay exceed the capacity of
existing generating and distribu­
tion system s
)
4 incorrect fuses of circuit break­
ers in pow er line
1
D o not use other appliances or m otors on sam e cir­
cuit w hen using the saw
2 Increase w ire sizes, or reduce length of w iring. S ee
“M otor Specifications and electrical R equirem ents"
section
3 R equest a voltage check from the pow er com pany
4. Install correct fuses or circuit breakers
M otor starts slow ly or
fails to com e up to full
speed
1.
Low voltage-
2 W indings burned out or open
3 Starting relay not operating
1. R equest voltage check from the pow er com pany
2 H ave m otor repaired or replaced.
3. H ave relay replaced
M otor overheats 1 M otor overloaded
2 im proper cooling (Air circuiation
restricted through m otor due to
sawdust, accum ulating inside
of saw
)
1 Feed work slow er into blade
2 C lean out sawdust to provide norm al air circulation
through m otor See “M aintenance" and "Lubrication"
section -
R elay w ill not operate 1. Burned contacts {due to
extended hold-in periods
caused by low line voltage, etc.)
2 Saw not in upright position
3. Loose or broken connectors.
1 H ave relay replaced and request a voltage check
from the pow er com pany,
2. Place saw in upright position.
3 H ave w iring checked and repaired.
M otor stalls (rssufting in
biow n fuses or tripped
circuit breakers)
1, Starting relay not operating,
2 Voltage too low to perm it m otor
to reach operating speed
3 Fuses or circuit breakers do not
have sufficient capacity
1 H ave relay replaced
2, R equest voltage check from the pow er com pany
3, Install proper size fuses or circuit breakers,
Frequent opening of
fuses or circuit breakers
1. M otos overloaded
2 Fuses or circuit breakers do not
have sufficient capacity
3, Starting relay not operating
(m otor does not reach speed.)
1
Feed work slow er into blade
2
Install proper size fuses or circuit breakers
3 H ave relay replaced.
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