E-3
TROUBLESHOOTING
E-3
CLASSIC I
LINCOLN
ELECTRIC
®
Observe all Safety Guidelines detailed througout this manual
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.
CAUTION
PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSES
RECOMMENDED
COURSE OF ACTION
4. Welding current too great or too
small compared to indication on
the dial.
5. Arc continuously pops out.
6. Engine fails to start.
7. Low oil pressure. Light not lit
when engine running.
8. Lack of Power.
a. Exciter output low causing low
output compared to dial indica-
tion.
b. Operating speed too low or high.
a. “Current Range Selector” switch
may be set at an intermediate
position.
a. Out of fuel.
b. Clogged fuel system.
c. Choke not closing tightly.
d. Ignition switch shorted or open.
e. Moisture or carbon on spark
plugs.
f. Defective distributor.
a. Oil too light.
b. Oil too low.
c. Defective oil pressure switch or
light.
a. Carbon deposits causing pre-igni-
tion.
b. Incorrect timing.
a. Check exciter field circuit.
b. Adjust speed screw on governor
for rated RPM operating speed.
a. Set the switch at the center of the
current range desired.
a. Fill with at least 75 octane gaso-
line.
b. Check all lines to carburetor.
c. Loosen choke cable screw and
slack off choke wire.
d. Replace.
e. Remove plugs, clean, and adjust
gap to 0.032”.
f. Replace.
a. Drain; refill with proper grade.
b. Fill to “Full” mark on bayonet
gauge. Do not overfill.
c. Replace.
a. Run engine under full load for a
short time.
b. Time ignition. *
JULY97
