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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.
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