Troubleshooting - Oliver 4650 Owner's Manual

Troubleshooting

Disconnect the machine from power source before proceeding with any troubleshooting! Failure
Description of Symptoms
Machine will not start
Blade does not come up to speed
Motor overheats
Machine slows when operating
Does not make accurate 45° or
90° cuts
Saw makes unsatisfactory cuts
Saw vibrates excessively
WARNING
to comply may cause serious injury!
Possible Cause
1. Fuse blown or circuit breaker
tripped
2. Cord Damaged
3. Faulty switch
4. Not connected to power
source
5. Connected to wrong voltage
6. Emergency stop button
pressed
1. Cable too light or too long
2. Low current
3. Circuit shared with other
equipment
4. Motor not wired for correct
voltage
1. Motor overloaded
2. Air circulation through the
motor restricted
1. Feeding workpiece too fast
1. Stops not adjusted correctly
2. Angle pointer not set
accurately
3. Miter gauge out of adjustment
1. Dull blade
2. Blade mounted backwards
3. Gum or pitch on blade
4. Incorrect blade for cut
1. Stand on uneven floor
2. Damaged saw blade
3. Bad V-belt
4. V-belt tension incorrect
5. Loose hardware
14
Corrective Action
1. Replace fuse or reset circuit
breaker
2. Have cord replaced
3. Replace switch
4. Check connection
5. Check voltage
6. Rotate emergency stop button
clockwise until it pops out
1. Replace with adequate size
cable
2. Contact local electric
company
3. Provide a dedicated circuit
4. Refer to motor nameplate for
correct voltage
1. Reduce load on motor
2. Clean out fan and fan cover
1. Slow the feed speed
1. Check blade with combination
square and adjust stops
2. Check blade with combination
square and adjust pointer
3. Adjust miter gauge
1. Sharpen or replace blade
2. Turn blade around
3. Remove blade and clean
4. Change blade to correct type
1. Reposition on flat, level
surface
2. Replace saw blade
3. Replace V-belt
4. Check and adjust v-belt
tension
5. Tighten hardware