Jet TPFA-X, Инструкция по эксплуатации и каталог запасных частей

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7.0 Troubleshooting
Trouble Probable Cause Remedy
Powerfeed will not
work; power indicator
is not lit.
No incoming power. Check plug connection.
Powerfeed switch is off. Turn switch to ON position.
Circuit breaker on powerfeed has been
tripped.
Reset circuit breaker.
Powerfeed will not
work, but power
indicator is lit.
Carbon brush is not making proper
contact with the armature, or is worn.
Open unit by loosening bottom four
screws. Adjust carbon brush for better
contact, or replace carbon brush if
worn.
Internal wiring to the printed circuit
board is not properly connected.
Inspect and connect any loose wiring.
Potentiometer connections are loose, or
potentiometer is faulty.
First check connections and re-connect
if necessary. Replace potentiometer if
faulty.
Speed control erratic,
or unit only operates at
high speed.
Rapid micro switch is stuck, or its
position is too high up.
Lightly tap on micro switch to lower it.
Loose connections or faulty elements.
First inspect connections and re-
connect if necessary. If faulty elements,
replace as needed.
Breaker keeps tripping
during normal
operation.
Unit has short circuit.
Inspect limit switch assembly for origin
of short circuit. Remove brush cap and
inspect armature for short. Measure
with an ohmmeter across the carbon
brush and the outer cover of powerfeed
unit.
Correct any short circuit in the unit.
Unit will move in only
one direction.
Limit switch malfunctioning. Repair or replace limit switch.
The limit switch will not
stop the table from
traveling farther even
after contacting the
travel stop.
Limit switch not operating correctly. Repair or replace limit switch.
8.0 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 (see our website for business hours, www.jettools.com). Having the
Model Number and Serial Number of your machine available when you call will allow us to serve you quickly
and accurately.