TROUBLE SHOOTING -- MOTOR

NOTE Motors used on wood-working tools are particular y susceptib!e to the accumulation of sawdust and wood chips and should be blown out or vacuumed' frequently to prevent

interference with, normal motor ventilation and proper operation of the centrifugally-

operated starting switch.

REMEDY

1. Have motor checked by qualified service technician. Repair service is available at

,

 

 

 

 

 

 

 

 

I

 

 

 

 

 

 

 

 

 

Motor

fails to develop

1. Circuit

overloaded

with

full power. NOTE:

 

 

lights, appliances

and

LOW VOLTAGE:

(Power

 

other

motors.

 

 

 

output

of motor

 

 

 

 

 

 

 

 

 

 

 

 

 

decreases

 

rapidly with

2.

Undersize

 

wires

or

circuit

decrease

 

in voltage

at

 

too long.

 

 

 

 

 

 

motor

terminals.

 

For

 

 

 

 

 

 

 

 

 

 

example, a reduction of : 3. General overloading of

10% in voltage

causes

 

power comoanv

 

 

 

a reduction

 

of

19%

in

'

facilities

 

-

"

 

 

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.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

i

J

 

 

 

 

 

 

 

 

 

Motor

starts

slowly

 

I 1. Low

voltage

will

not

or fails to come

up

I

trip

relay

 

 

 

 

 

 

to full speed.

 

 

 

2. Windings

 

burned

out

 

 

 

 

 

 

 

 

 

or open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Starting

relay

not

 

 

 

 

 

 

 

 

 

 

operating.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Motor

overloaded

 

 

 

 

 

 

 

 

 

 

2.

Improper

 

cooling.

(Air

 

 

 

 

 

 

 

 

 

c_rculation

 

restricted

 

 

 

 

 

 

 

 

'

through

motor

due

to

 

 

 

 

 

 

 

 

i

sawdust

 

accumulating.

 

 

 

 

 

 

 

 

1

Burned

switch

contacts

Starting

switch

 

in

 

 

(due to extended

 

 

motor

will not

 

 

 

 

hold-inperiods caused

operate.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

by low line voltage, etc)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.

Shorted

capacitor

 

 

 

 

 

 

 

 

 

3

Loose

or

 

broken

 

 

 

 

 

 

 

 

 

 

 

connections.

 

 

 

 

Motor

stalls

 

 

 

 

1

Starting

switch

 

not

 

(resulting

in blown

 

 

operating

 

 

 

 

 

 

fuses

or tripped

 

 

2.

Voltage too

low

to

permit

eircuLt

breakers}.

 

 

 

motor

to

 

reach

operating

 

 

 

 

 

 

 

 

 

speed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3,

Fuses

or circuit

 

breakers

 

 

 

 

 

 

 

 

 

do not

have

sufficient

 

 

 

 

 

 

 

 

 

capacity,

 

 

 

 

 

 

[ Frequent

 

opening

of

1.

Motor

overloaded

 

fuses or circuit

 

 

 

2.

Fuses

or circuit

 

breakers

breakers.

 

 

 

 

 

 

do not

have

sufficient

 

 

 

 

 

 

 

 

 

capacity,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.

Starting

switch

 

not

 

 

 

 

 

 

 

 

 

 

operating

(motor does

 

 

 

 

 

 

 

 

 

not

reach

speed)

 

your nearest Sears store,

'1. Do not use other appliances or motors on same circuit when using the saw.

2.Increase wire sizes, or reduce length of wiring. See "Motor Specifications and Electrical Requirements" section,

3.Request a voltage check from the power company.

1.Request voltage check from the power company.

2.Have motor repaired or replaced

3.Have relay replaced.

1. Feed work slower into belt or disc.

2. Clean out sawdust to provide normal air

c_rculation through motor

See "Maintenance and Lubrication" section

1.Have switch replacedand request a voltage check from the power company.

2 Have capac=tor tested and replace _f defectwe

3 Have wiring checked and repaired.

I Have switch replaced.

2 Request voltage check from the power company

3.install proper s=ze fuses or c=rcult breakers.

1.Feed work slower into belt or disc.

2 Install proper s_ze fuses or c_rcu_t breakers

3, Have sw_tch replaced.

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Craftsman 113.225931, 113.225909, 113.225900 manual Trouble Shooting -- Motor, Remedy, LOW Voltage