Lincoln Electric IM968 SAE-500 SEVERE DUTY - Manual (Page 20)

D-1 MAINTENANCE D-1
ELECTRIC SHOCK can kill.
● ● Do not touch electrically live parts
such as output terminals or inter-
nal wiring
ENGINE EXHAUST can kill.
● ● Use in open, well ventilated areas
or vent exhaust outside
MOVING PARTS can injure.
● ● Do not operate with doors open or
guards off
● ● Stop engine before servicing
● ● Keep away from moving parts
● ● Remove guards only when necessary and replace
when work requiring removal is complete.
● ● Only qualified personnel should install, use, or ser-
vice this equipment.
ROUTINE MAINTENANCE
At the end of each day’s welding, refill the fuel tank to mini-
mize moisture condensation in the tank. Also, running out of
fuel tends to draw dirt into the fuel system. Check the
engine crankcase oil level.
If the fuel supply runs out while the fuel pump is operating,
air may be entrapped in the fuel distribution system. If this
happens, bleeding of the fuel system may be necessary.
See the engine instruction manual.
PERIODIC MAINTENANCE
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. The current control reactor brushes are self-lubricating
and should not be greased. Keep the contacts clean.
This control should be moved from maximum to mini-
mum daily to prevent the controls from sticking.
3. See the engine Instruction Manual for periodic engine
maintenance information. Change the oil filter in accor-
dance with the instructions in the engine operating man-
ual. When the oil filter is changed add one quart of oil to
the crankcase to replace the oil held in the filter during
operation.
4. Belts tend to loosen after the first 30 or 40 hours of oper-
ation. Check the cooling fan belt and tighten if neces-
sary. DO NOT OVER TIGHTEN.
ENGINE OIL CHANGE
The SAE-500™ SEVERE DUTY™ is equipped with a con-
venient oil drain system. Drain the oil when the engine is
warm to assure rapid and complete draining.
• Remove the oil filler cap and dipstick.
• To open drain valve, push handle away from valve and
turn 90°.
• Drain oil into a suitable container.
• To close drain valve, turn handle 90° till handle snaps in
the closed position.
• Refill engine with the recommended oil to the appropriate
level. Replace dipstick and tighten the oil filler cap secure-
ly.
Change the crankcase oil at regular intervals using the prop-
er grade of oil as recommended in the Engine Operating
Manual. Wash your hands with soap and water after han-
dling used oil. Please dispose of used motor oil in a manner
that is compatible with the environment. We suggest you
take it in a sealed container to your local service station or
recycling center for reclamation. Do not throw it in the trash,
pour it on the ground or down a drain.
ENGINE AIR FILTER
The engine air filter element is a dry cartridge type. It
is located above the engine. It can be cleaned and re-
used; however, damaged elements should not be
washed or re-used. Remove loose dirt from element
with compressed air or water hose directed from
inside out. Compressed Air: 100 psi maximum. The fil-
ter should never be removed while the engine is run-
ning.
SAE-500™ SEVERE DUTY™
WARNING