Lincoln Electric VANTAGE 400-I Operator's Manual page 34

VANTAGE ® 400-I
PROBLEMS
(SYMPTOMS)
Engine does not develop full power. Low
weld and auxiliary output. Engine runs
rough.
No welding power output.
Welder has output but no control.
Wire feeder does not work when control
cable is connected to 14 pin connector.
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. Fuel filter dirty/clogged. Replace.
2. Air filter dirty/clogged. Replace Air Filter
Element.
3. Fouled fuel injector(s). Contact authorized
Engine Service Shop.
4. Fuel contaminated with water. Check
Main Filter Bowl and Inline Fuel filters for
water. Clean and replace as needed.
Replace fuel in tank.
5. Cracked or loose fuel hose. Replace hose
and tighten clamps.
6. Valves out of adjustment. Contact autho-
rized local Engine Service Shop.
1. Poor work lead connection to work. Make
sure work clamp is tightly connected to
clean base metal.
2. "Weld Terminals" switch in wrong posi-
tion. Place switch in "Weld Terminals On"
position when welding without control
cable.
3. Faulty PC board or welder alternator.
1. Poor remote/control cable connection to
6-pin or 14-pin connector. Check con-
nections.
2. Faulty remote cable or faulty wire feeder
or wire feeder cable. Replace if neces-
sary.
3. Faulty control potentiometer or PC board.
1. Wire Feeder Power circuit breaker open.
Check 42V and 120V beakers and reset if
tripped.
2. Faulty control cable. Repair or replace
cable.
3. Faulty wire feeder. Replace wire feeder.
CAUTION
E-5
TROUBLESHOOTING
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas of mis-
adjustment have been checked and the
problem persists, Contact your local
Lincoln Authorized Field Service
Facility.