Jet IBGB-248VS, Инструкция по эксплуатации и каталог запасных частей, Страница: 19 / 36

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12.0 Troubleshooting IBGB series Sander/Grinder
12.1 General mechanical and electrical problems
Some corrections may require a qualified electrician.
Symptom Possible Cause Correction
Motor will not start. No incoming power. Verify that plug is properly inserted into
receptacle. If so, check main panel for
tripped breaker or blown fuse.
Non-variable speed models: Safety
key is missing. Make sure safety key is inserted.
Wheel(s) cannot rotate because of
obstruction. Unplug and turn wheel by hand to ensure
free movement. Restart.
Fuse blown or circuit breaker open. Re-set. May be too many machines on
one circuit.
Motor cord cut or abraded. Replace with new cord.
Plug on cord is faulty. Replace with new plug.
Low line voltage. Check power line for proper voltage.
Faulty switch. Replace switch.
Faulty capacitor. Replace capacitor.
Open circuit in motor or loose
connection. Inspect all lead connections on motor for
loose or open connections.
Motor faulty. Have motor inspected.
Motor will not start;
fuses blow or circuit
breakers trip. Too many electrical machines
running on same circuit. Turn off other machines and try again.
Use dedicated circuit if necessary.
Incorrect fuse. Try time delay fuse, or go to circuit with
higher rated fuse or circuit breaker.
Wheel(s) cannot rotate because of
obstruction. Unplug and turn wheel by hand to ensure
free movement. Clear any obstructions
and restart.
Undersized extension cord. Use correct size extension cord.
Short circuit in line cord or plug. Inspect cord or plug for damaged
insulation and shorted wires.
Short circuit in motor or loose
connections. Inspect all connections on motor for loose
or shorted terminals or worn insulation.
Motor fails to develop
full power. Low line voltage. Check power line for proper voltage.
Faulty motor or capacitor. Contact JET technical service.
Motor overheats. Motor overloaded. Reduce pressure against wheel or platen.
Make sure grit size is appropriate for the
job.
Motor stalls, resulting
in blown fuses or
tripped breaker.
Motor overloaded. Reduce load on motor; do not press so
hard.
Capacitor failure. Contact JET technical service.
Short circuit in motor or loose
connections. Inspect connections on motor for loose or
shorted terminals or worn insulation.