Lincoln Electric Cross Country 300 Service Manual page 29

LINCOLN ELECTRIC
Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The engine will not go to high
idle when using auxiliary
power. Auxiliary power is
normal when the idler switch is
in the 'High' idle position, the
automatic idle function works
properly when welding.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the
Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
ENGINE PROBLEMS
1. The load on the auxiliary
receptacle may be too low.
2. The automatic idle system
will not function reliably if the
load is less than 100 watts.
3. The device connected to the
auxiliary power may be
defective. Try another device.
4. Make sure the connections
to the auxiliary device are
secure.
5. Some devices are designed
to sense for adequate input
power. Product of this type
may not turn on due to low
voltage and frequency of the
machine at low idle. If this
happens the current draw will
likely be insufficient to activate
the automatic idle system.
Devices of this type may
require that the automatic idle
switch be in the 'High Idle'
position.
CAUTION
Cross Country™ 300 Service Manual
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
1. Check that leads 3 and 6 are
properly routed through the
toroidal current sensor. Each
lead must have three turns and
must pass through the sensor
in the opposite directions. See
Wiring Diagram. The leads
should be wrapped tightly and
tie wrapped in place.
2. Check the toroidal sensor for
any signs of damage.
3. Check leads 260 and 261 for
poor connections and damage
to the conductors and
insulation between the toroid
current sensor and the J3
connector in the control board.
Unplug plug J3 from the control
board and check for damaged,
dirty or corroded pins.
4. Measure the resistance of
toroidal current sensor.
Measure between J3-3 and J3-
4, the resistance should be 3-4
ohms. If the sensor is shorted
or open replace it. The control
board may be defective.
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