USER MANUAL
JEFBG6 • JEFBG8
INDUSTRIAL
BENCH GRINDER
www.jeffersontools.com
5
MAINTENANCE
Important:
Ensure the grinder is unplugged from the mains power supply before performing any maintenance or service:
•
As the grinding stone wears, adjust the position of the tool rests accordingly. The rest must be at a maximum of
2mm
from the stone surface.
•
Regularly remove the grinding stone covers and clean out any dust and dirt.
•
The grinding stone should be replaced when the distance between the external diameter of the grinding wheel and the edge of the grinding
wheel cover is greater than
6mm
.
•
The machine motor and bearing are sealed units and require no regular maintenance.
•
If you require any advice on the servicing or maintenance of this equipment contact your nearest Jefferson Dealer.
TROUBLESHOOTING
FAULT
CAUSE
REMEDY
The motor will not start.
- Problem with electrical connection.
- Check correct electrical connection is available and that
the equipment is connected to the supply.
- Check plug, fuse, replace or repair if necessary.
- Check if RCD has been tripped, reset if necessary.
- Check for damage to the cable, replace or repair if
necessary.
- The power witch has not been tuned on.
- Turn the power switch on the grinder to the "ON"
position.
- Faulty motor
- Contact your nearest Jefferson Dealer for advice.
Motor will not start.
Fuse blows.
Circuit breaker is tripped.
- Too many devices running off the power outlet.
- Reduce number of connections on the power circuit.
- Incorrect fuse or damaged fuse.
- Check fuse rating is 13A - replace if necessary.
- Wheels cannot rotate due to obstruction.
- Turn off the power switch and unplug the equipment
from the supply.
- Check and remove the obstruction from the wheel.
- Check that the wheel is not obstructed by the tool rest.
- Turn the wheel by hand to check it is moving freely
before reconnecting to the power supply.
- Problem with extension cable (if in use)
- Repair or replace the extension cable.
- Short circuit
- Contact your nearest Jefferson Dealer for advice.
Motor fails to develop full power.
Motor overload
Reduce load to the motor. Do not force the workpiece on
the grinding wheel.
Low line voltage
Check that the electrical supply rating matches the
equipment specifications.
Use a shorter extension cable (if applicable).
Loose cable connections
- Contact your nearest Jefferson Dealer for advice.
Faulty motor
- Contact your nearest Jefferson Dealer for advice.
Frequent fuse or RCD breaker failure.
Motor overload
Reduce load to the motor. Do not force the workpiece on
the grinding wheel.
Overload on the electrical circuit.
- Reduce number of connections on the power circuit.
Incorrect fuse or faulty RCD.
- Check and replace if necessary (always use a qualified
electrician).
