Sears 113.2945 owner manual Probable Cause

TROUBLE

Motor will not run.

Motor will not run and fuses "BLOW."

PROBABLE CAUSE

1.Protector open; circuit broken.

2.Low voltage.

1.Short circuit in line cord or

plug.

2.Short circuit in motor terminal box or loose connections.

REMEDY

Motor fails to develop full power. (Power output of motor decreases rapidly with decrease in voltage at motor terminals.) For

example: a reduction of 10% in voltage causes a reduction of 19% in

maximum power output of which the motor is capable,

while a reduction of 20%

in voltage causes a reduc- tion of 36% in maximum

power output.

Motor starts slowly or fails to come up to full speed.

Motor overheats.

1. Power line overloaded with

lights, appliances and other motors.

2.Undersize wires or circuit too long.

3.General overloading of power company's facilities. (In many sections of the country, demand

for electrical power exceeds the capacity of existing gen- erating and distribution systems.)

4.Incorrect fuses in power line.

1.Low voltage--will not trip relay.

2.Starting relay not operating.

1.Motor overloaded.

2.Improper cooling. (Air circula- tion restricted through motor due to sawdust, etc.)

4.Install correct fuses.

1.Correct low voltage condition.

2.Replace relay.

1.Correct overload condition.

2.Clean out sawdust to provide normal air circulation through motor.

Starting relay in motor will not operate.

1.Burned relay contacts (due to extended hold-in periods caused by low line voltage, etc.)

2.Open relay coil.

3.Loose or broken connections in motor terminal box.

1.Replace relay and check line voltage.

2.Replace relay.

3.Check and repair wiring.