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MAINTENANCE
D-1
WELDMARK 225
SAFETY PRECAUTIONS
Have qualified personnel do the maintenance
work. Turn the engine off before working inside
the machine. In some cases, it may be
necessary to remove safety guards to perform
required maintenance. Remove guards only
when necessary and replace them when the
maintenance requiring their removal is
complete. Always use the greatest care when
working 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 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.
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See additional warning information
throughout this operator’s manual and
the Engine manual as well.
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WARNING
Make certain that the oil filler cap is securely tight-
ened after checking or adding oil. If the cap is not
tight, oil consumption can increase significantly
which may be evidenced by white smoke coming
from the exhaust.
• OIL - Maintenance schedule for changing the oil and
oil filter after break-in:
• Oil - 100 HRS
• Oil Filter - 200 HRS
The above schedule is for normal operating condi-
tions. More frequent oil changes are required with
dusty, high temperature and other severe operating
conditions. Refer to the maintenance section of the
Engine Owner's Manual for more information.
NOTE: Engine life will be reduced if the oil and oil
filter are not changed according to the manufacturer’s
recommendation.
• Air Cleaner - With normal operating conditions, the
maintenance schedule for cleaning and re-oiling
the foam pre-filter is every 25 hours and replace-
ment of the air cleaner filter every 100 hours.
More frequent servicing is required with dusty
operating conditions. Refer to the maintenance
section of the Engine Owner’s Manual for more
information.
• Refer to the maintenance section of the Engine
Owner’s Manual for the maintenance schedule,
spark plug servicing, cooling system servicing, and
fuel filter replacement.
• Blow out the machine with low pressure air period-
ically. In particularly dirty locations, this may be
required once a week.
• Output Selector and Polarity Switch contacts
should not be greased. To keep contacts clean,
rotate the switch through its entire range frequently.
A good practice is to turn the handle from maximum
to minimum setting twice each morning before
starting to weld.
CAUTION
Read the Safety Precautions in the front of this manual
and the engine instruction manual before working on
this machine.
Keep all equipment safety guards, covers, and devices
in position and in good repair. Keep hands, hair, cloth-
ing, and tools away from gears, fans, and all other
moving parts when starting, operating, or repairing the
equipment.
Routine Maintenance
• At the end of each day’s use, refill the fuel tank to
minimize moisture condensation in the tank.
Running out of fuel tends to draw dirt into the fuel
system. Also, check the crankcase oil level and
add oil if indicated.