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D-1
MAINTENANCE
D-1
CLASSIC I
LINCOLN
ELECTRIC
ELECTRIC
®
MAINTENANCE
General Instructions
1. Blow out the welder and controls with an air hose
at least once every two months. In particularly
dirty locations, this cleaning may be necessary
once a week. Use low pressure air to avoid driving
dirt into the insulation.
2. “Current Range Selector” contacts should not be
greased. To keep the contacts clean, rotate the
current control through its entire range frequently.
Good practice is to turn the handle from maximum
to minimum setting twice each morning before
starting to weld.
3. Change the crankcase oil and oil filter after the first
50 hours of operation and thereafter at regular
intervals using the proper grade of oil. See the
recommendations in the engine operation manual.
4. Inspect the air filter daily - - more often in dusty
conditions when necessary clean or replace. The
filter should never be removed while the engine is
running. The air filter should never be removed
while the engine is running. The air filter element
part number is Donaldson #181050 or Nelson
#70206N.
5. When necessary, remove the sediment bowl from
beneath the gas tank and clean out any accumulat-
ed dirt and water. Replace the fuel filter in the fuel
line as needed. In an emergency, the fuel filter can
be back-flushed for continued use until a replace-
ment can be obtained.
6. Fan belts tend to loosen after the first 50 hours of
operation. Check engine operation manual and
tighten if necessary. DO NOT OVERTIGHTEN.
7. Put a drop of oil on the “Current Range Selector”
shaft at least once every month.
8. Keep governor and carburetor toggles and butterfly
valve shaft clean and lubricated.
9. See the engine manufacturers operation manual
for detailed engine maintenance and troubleshoot-
ing instructions.
Cooling System
The Classic I is equipped with a pressure radiator.
Keep the radiator cap tight to prevent loss of coolant.
Clean and flush the cooling system periodically to pre-
vent clogging the passage and overheating the
engine. When antifreeze is needed, always use the
permanent type.
Have qualified personnel do the maintenance
work. Turn the engine off before working inside
the machine. In some cases, it may be neces-
sary to remove safety guards to perform
required maintenance. Remove guards only
when necessary and replace them when the
maintenance requiring their removal is com-
plete. Always use the greatest care when work-
ing near moving parts.
Do not put your hands near the engine cooling
blower fan. If a problem cannot be corrected by
following the instructions, take the machine to
the nearest Lincoln Field Service Shop.
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ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or
electrode with skin or wet clothing.
• Insulate yourself from work and
ground
• Always wear dry insulating gloves.
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ENGINE EXHAUST can kill.
• Use in open, well ventilated areas or
vent exhaust outside.
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MOVING PARTS can injure.
• Do not operate with doors open or
guards off.
• Stop engine before servicing.
• Keep away from moving parts.
------------------------------------------------------------------------
See additional warning information at
front of this operator’s manual.
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WARNING
ORDERING
INFORMATION
COOLING SYSTEM
CAPACITY
K6090-ALL 9.3 Quarts