7
SYMPTOM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
Motor will not start
Motor will not start; fuses blown or circuit
breakers tripped
Motor fails to develop full power (power out-
put of motor decreases rapidly with decrease
in voltage at motor terminals)
Motor overheats
Motor stalls
(resulting in blown fuses or
tripped circuit breakers)
Machine slows down while operating
Abrasive belt runs off top wheel
1. Blown line fuse or tripped circuit breaker
2. Low line voltage
3. Defective switch
4. Defective, blown capacitor
1. Overloading due to binding
2. Defective plug
3. Defective cord
4. Defective switch
5. Motor wired for different line voltage
6. Faulty internal wiring
1. Power line overloaded with lights,
appliances and other motors
2. Undersized wires or circuits too long
3. General overloading of power company’s
facilities
Motor overloaded
1. Short circuit in motor or loose
connections
2. Low voltage
3. Motor wired for different line voltage
4. Incorrect fuses or circuit breakers in power
line
5. Motor overloaded
Applying too much pressure to workpiece
Not tracking properly
1. If fuse is blown, replace with fuse of
proper size. If breaker tripped, reset it
2. Check power supply for voltage and
correct as needed
3. Replace switch
4. Replace capacitor
1. Clean around wheels and shaft and/or
replace bearings
2. Replace plug
3. Replace cord
4. Replace switch
5. Rewire motors as per line voltage (See
“Electrical Connections”, page 4)
6. Replace motor
1. Reduce load on power line
2. Increase wire sizes, or reduce length of
wiring
3. Request a voltage check from power
company
Reduce load on motor
1. Inspect connections in motor for loose or
shorted terminals or worn insulation on
lead wires
2. Correct the low line voltage conditions
3. Rewire motor as per line voltage
4. Install correct fuses or circuit breakers
(See “Electrical Connections”, page 4)
5. Reduce load on motor
Ease up on pressure
See “Belt Installation”, page 5
TROUBLESHOOTING
Palmgren Operating Manual & Parts List
82401, 82402 & 82404
