Lincoln Electric IM581 - Manual (Page 21)

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 com-
plete.
● Only qualified personnel should install, use, or
service this equipment.
ROUTINE MAINTENANCE
At the end of each day’s welding, refill the fuel tank to
minimize moisture condensation in the tank. Also, run-
ning out of fuel tends to draw dirt into the fuel system.
Check the engine crankcase and compressor oil levels.
If the fuel supply runs out while the fuel pump is oper-
ating, air may be entrapped in the fuel distribution sys-
tem. If this happens, bleeding of the fuel system may
be necessary. See the engine instruction manual.
FUEL SYSTEM WATER SEPARATOR
MAINTENANCE
If the fuel system on the engine is equipped with a
water separator, the following maintenance proce-
dures must be followed.
Inspect the glass bowl for any accumulation of water
on a daily basis. If water is present:
1. Insure the fuel shut off valve is in the "open" position.
2. Loosen the drain screw on the bottom of the bowl
one to two turns or until water begins to flow. Do
not remove the screw completely.
3. Drain until the water has visibly drained from the
bowl and only clear fuel starts to flow from the
drain valve.
4. Close the drain screw tightly by hand.
Note: Water and fuel should be drained into a suit-
able container for proper disposal.
COMPRESSOR AIR RECEIVER TANKS
Drain the condensation from the tanks after each use
by opening the drain valve located at the lower right
rear of the welder.
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 filter
should never be removed while the engine is running.
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 pres-
sure 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 minimum daily
to prevent the controls from sticking.
3. See the engine Instruction Manual for periodic engine
maintenance information. Change the crankcase oil at
regular intervals using the proper grade of oil as recom-
mended in the engine operating manual. Change the oil
filter in accordance with the instructions in the engine
operating manual. 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. See the compressor operator’s manual for periodic com-
pressor maintenance information. Change the compres-
sor oil at regular intervals using only Iowa Mold Tooling
Co., Inc. (IMT) synthetic compressor oil as recommended
in the compressor operating manual.
The use of any other oil causes excessive carbon build up,
and will void the warranty on the compressor.
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5. Belts tend to loosen after the first 30 or 40 hours of oper-
ation. Check the cooling fan belt and tighten if necessary.
DO NOT OVER TIGHTEN. The compressor belt does not
require any adjustment.
SAE400 WELD’N AIR
WARNING
CAUTION