Sears 113.19771 owner manual Probable Cause Suggested Remedy

MOTOR TROUBLE - SHOOTING CHART

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 with normal motor ventilation.

TROUBLE	PROBABLE	CAUSE			SUGGESTED	REMEDY
Motor will not run.	1. Protector open;	c!rcuit	1. Reset	protector	by pushing	on red	button,
	broken,		located	on top	of motor (indicated		by
			audible	click).

Motor will not run and

fuses "BLOW".

Motor fails to develop

full power. (Power output of motor decreases rapidly with decrease in voltage at

2.

Low

voltage.

2.

Check

power

line for

proper voltage.

1.

Short

circuit

in

line,

1.

Inspect

line,

cord

and

plug

for

damaged

cord

or

plug.

insulation

and shorted

wires.

2.

Short

circuit

in

motor

or

2.

Inspect

all

terminals

in motor

for loose

or

loose

connections,

shorted

terminals

or worn

insulation on

wires.

3.

Incorrect

fuses

in power line.

3.

Install

correct

fuses.

Power

line

overloaded

with

1.

Reduce

the

line

load.

lights,

appliances

and

other

motors.

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 reduction of 36% in maximum power output.)

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

generating and distribution systems.)

2.Increase wire sizes, or reduce length of wiring.

3.Request a voltage check from the power company.

Motor overheats.

1. Excessive	feed	rate when	1. Slowdown	rate of feed.
crosscutting	or	ripping.

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

Motor stalls (resulting in blown fuses or tripped circuit breakers).

2. Improper cooling. (Air

circulation restricted through motor due to sawdust, etc.)

3. Saw blade has "heel".

1, Low Voltage will not trip starting switch.

1.Voltage too low to permit motor to reach operating speed.

2.Clean out sawdust to provide normal air

circulation through motor.

3.Refer to Alignment Procedure Section of manual Step Five.

1.Correct low voltage condition.

1. Correct the low line voltage condition.

Frequent opening of fuses or circuit breakers.

2.	Fuses		or	circuit	breakers	2.	Replace	fuses	or	circuit	breakers with
	do	not	have sufficient
							proper	capactty		units.
	capacity.
1.	Motor		overloaded.			1.	Reduce	motor	load.
2.	Fuses		or	circuit	breakers	2,	Replace	fuses	or	circuit	breakers.
	do	not	have sufficient

capacity.

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