Lincoln Electric VANTAGE 400 Operator's Manual page 34

VANTAGE 400
Engine shuts down while under a load.
Engine runs rough.
Battery does not stay charged.
Engine alternator trouble light is on while
machine is running.
Engine will not idle down to low speed.
Engine will not go to high idle when
attempting to weld.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized
Field Service Facility for technical troubleshooting assistance before you proceed.
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
CAUSE
1. High radiator coolant temperature.
Reduce load if it is exceeding machine
rating. Add coolant to system if low.
Clean fins on radiator if dirty. Tighten fan
belt if loose. Remove objects blocking or
close to intake openings on both sides of
base and exhaust end (case back).
1. Dirty fuel or air filters. Inspect and
clean/replace filters as needed. Inspect
and clean/replace filters as needed.
2. Water in fuel. If water found in tank.
Empty fuel tank and refill then purge fuel
lines.
1. Faulty battery. Replace.
2. Loose connections at battery or alterna-
tor. Clean and tighten connections.
3. Faulty engine alternator or charger mod-
ule. Consult authorized Engine Service
Shop.
1. Idler switch in High idle position.
Set switch to Auto.
2. External load on welder or auxiliary
power. Remove all external loads.
3. Faulty PC board or idler solenoid.
1. Poor work lead connection to work.
Make sure work clamp is tightly connect-
ed to clean base metal.
2. "Contactor" switch is in wrong position.
Set to "Welding On" when welding without a
control cable. Refer to Operations chapter
for proper use of this switch.
3. Faulty PC board. Low idle speed set to
low.
E-3
If all recommended possible areas of mis-
adjustment have been checked and the
problem persists, Contact your local
Lincoln Authorized Field Service Facility.
CAUTION
TROUBLE SHOOTING