13
11.0
Troubleshooting JBG Series Bench Grinders
Problem Probable
Cause
Remedy
Motor will not start
Not plugged into receptacle
Plug it into the power source receptacle
Switch not in the
ON
position
Turn the switch to the ON position
Motor cord cut or abraded
Replace with a new cord
Plug on cord is faulty
Replace with a new plug
Fuse or circuit breaker open
Re-set, may be too many machines on line
Motor faulty
Call JET Customer Service Department
Motor will not start and
fuse or circuit breaker
opens
Too many electrical machines
running on the same outlet
Turn off other machines and try again
Incorrect fuse
Try time delay fuse, or go to circuit with
higher rated fuse of circuit breaker
Wheels cannot rotate because of
obstruction
Unplug and turn grinding wheel by hand
Undersized
extension
cord
Use correct size extension cord; see
manual
Short circuit
Cord, plug, or motor need repair; call JET
Customer Service Dept.
Motor fails to develop
full power
Low line voltage
Check power line for proper voltage
Faulty motor or capacitor
Call JET Customer Service Dept.
Motor overheats
Overload on motor
Reduce load to motor; do not press so hard
Poor
ventilation
for
motor
Unplug and clean out around motor;
provide better air circulation
Capacitor failure
Call JET Customer Service Dept.
Motor stalls or slows
Motor overload
Reduce load to motor; do not press so hard
Low line voltage
Check power line for proper voltage
Loose wire connections
Call JET Customer Service Dept.
Faulty motor
Call JET Customer Service Dept.
Frequent fuse or circuit
breaker failure
Motor overload
Reduce load to motor; do not press so hard
Overload of electrical circuit
Too many electrical appliances on same
circuit
Incorrect fuse of circuit breaker
Have electrician upgrade service to outlet
Table 3
12.0
Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call
1-800-274-6848 Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Having the Model Number and
Serial Number of your machine available when you call will allow us to serve you quickly and accurately.
Non-proprietary parts, such as fasteners, can be found at local hardware stores, or may be ordered from
JET.
Some parts are shown for reference only, and may not be available individually.