PowerTec BD4800, Owner'S Manual

SYMPTOM

POSSIBLE CAUSE(S)

CORRECTIVE ACTION

Motor will not start

1. Low voltage
2. Open circuit in motor or loose
connections
3. Defective switch
4. Defective capacitor

1. Check power line for proper voltage
2. Inspect all lead connections on motor for loose 
or open connection
3. Replace switch
4. Replace capacitor

Motor will not start;
fuses blown or circuit
breakers are tripped

1. Short circuit in line cord or plug

2. Short circuit in motor or loose
connections
3. Incorrect fuses or circuit breakers 
in power line

1. Inspect line cord or plug for damaged insulation 
and shorted wires
2. Inspect all lead connections on motor for loose 
or shorted terminals or worn insulation on wires
3. Install correct fuses or circuit breakers

Motor fails to develop 
full power (power 
output of motor de-
creases rapidly with 
decrease in voltage 
at motor terminals)

1. Power line overloaded with lights,
appliances and other motors
2. Undersize wires or circuits too long
3. General overloading of power
company’s facilities

1. Reduce the load on the power line

2. Increase wire sizes, or reduce length of wiring
3. Request a voltage check from the power com-
pany

Motor overheats

Motor overloaded

Reduce load on motor

Motor stalls (result-
ing in blown fuses or 
tripped circuit break-
ers)

1. Short circuit in motor or loose
connections
2. Low voltage
3. Incorrect fuses or circuit breakers 
in power line
4. Motor overload

1. Inspect connections in motor for loose or 
shorted terminals or worn insulation on lead wires
2. Correct the low line voltage conditions
3. Install correct fuses or circuit breakers

4. Reduce load on motor

Machine slows down
while operating

Applying too much pressure to work-
piece

Ease up on pressure

Abrasive belt runs off 
top wheel

Not tracking properly

See operation “Adjusting Belt Tracking”

Dust collection not
working

1. Dust collection bag full
2. Belt loose or broken
3. Impeller loose or broken

1. Empty dust collection bag
2. Replace belt
3. Replace impeller

TROUBLESHOOTING

9

9

TROUBLESHOOTING