Engine Operation; Starting Instructions; Break-In Period; Typical Fuel Consumption - Lincoln Electric SAE-400 SEVERE DUTY IM727 Operator's Manual

B-5

ENGINE OPERATION

CAUTION
Do not adjust the high idle engine speed (rpm)
above the factory setting specification.
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STARTING INSTRUCTIONS

Be sure all Pre-Operation Maintenance has been per-
formed. (See INSTALLATION section of this manual).
To start the engine, place ignition toggle switch in the
"ON" position. Engage the starter button. When the
engine starts running, observe the engine oil pressure.
If no pressure shows within 30 seconds, stop the
engine and consult the engine operating manual. To
stop the engine, place the ignition toggle switch in the
"OFF" position.
When an engine is started for the first time, some of
the oil will be needed to fill the passages of the lubri-
cating system. Therefore, on initial starting, run the
engine for about five minutes and then stop the engine
and recheck the oil. If the level is down, fill to the full
mark again. The engine controls were properly set at
the factory and should require no adjusting when
received.
For added safety always operate the welder with the
doors closed. Further, leaving the doors open changes
the designed air flow and may cause engine or gener-
ator overheating.
Cold Weather Starting
WARNING
Never use any other starting aids, such as ether,
when using the "Thermostart" system.
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When overnight temperatures are between 10°F(12°C)
and freezing, use the standard "Thermostart" starting
system installed on all engines. Follow the instructions
on the start panel nameplate and in the engine manu-
al shipped with the welder. With fully charged batter-
ies and the proper weight oil, the "Thermostart" system
operates satisfactorily even down to about 0°F (-18°C).
OPERATION

BREAK-IN PERIOD

ENGINE
The engine used to supply power for your welder is a
heavy duty, industrial engine. It is designed and built
for rugged use. It is very normal for any engine to use
small quantities of oil until the break-in is accom-
plished. Check the oil level twice a day during the
break-in period (about 100 running hours).
IMPORTANT: IN ORDER TO ACCOMPLISH THIS
BREAK-IN, THE UNIT SHOULD BE SUBJECTED TO
HEAVY LOADS, WITHIN THE RATING OF THE
MACHINE. AVOID LONG IDLE RUNNING PERIODS.

TYPICAL FUEL CONSUMPTION

The typical fuel consumption of the SAE-400 SEVERE
DUTY for various operating scenarios is shown below:
Low Idle - No Load
1100 RPM
High Idle - No Load
1800 RPM
Welding Load
400 Amps, 40 Volts
Auxiliary Power
3000VA
SAE-400 SEVERE DUTY
B-5
.35 gal./ hr.
(1.32 L./hr.)
.75 gal./hr.
(2.84 L./hr.)
1.92 gal./hr.
(7.27 L./hr.)
.96 gal./hr.
(3.63 L./hr.)