Engine Operation; Stopping The Engine; Typical Fuel Consumption - Lincoln Electric SA-250 Operator's Manual

B-2

ENGINE OPERATION

Operate the welder with the doors closed. Leaving the
doors open changes the designed air flow and can
cause overheating.
STARTING the SA-250 PERKINS 104-22
DIESEL ENGINE
1. Turn the "IDLER" switch to "HIGH".
2. Turn the "IGNITION" switch to "ON".
3. Press the Glow Plug button for 20 to 30 seconds.
(maximum 60 seconds).
4. Press the Start button. When the engine starts run-
ning, release both buttons. If the engine fails to start
in 20 seconds, wait 30 seconds and repeat the
above procedure.
5. Observe the oil pressure. If no pressure shows with-
in 30 seconds, stop the engine and consult the
engine operating manual. To stop the engine, turn
the "IGNITION" switch to "OFF".
6. If the engine protection warning light comes on dur-
ing cranking or after start up, the "IGNITION" switch
must be turned "OFF" to reset the engine protection
system.
7. Allow the engine to run at high idle speed for sever-
al minutes to warm the engine. Stop the engine and
recheck the oil level after allowing sufficient time for
the oil drain into the pan. If the level is down, fill it to
the full mark again. The engine controls were prop-
erly set at the factory and should require no adjust-
ing when received.
COLD WEATHER STARTING
With a fully charged battery and a proper weight oil,
the engine should start satisfactorily even down to
about -15°F -(26°C). If the engine must be frequently
started at or below -15°F -(26°C), it may be desirable
to install cold-starting aides.
Note: Extreme cold weather starting may require
longer glow plug operation
WARNING
Under NO conditions should ether or other starting
fluids be used!
------------------------------------------------------------------------
OPERATION

STOPPING the ENGINE

1. Turn the "IGNITION" switch to "OFF"
At the end of each day's welding, check the crankcase
oil level, drain accumulated dirt and water from the
sediment bowl under the fuel tank and refill the fuel
tank to minimize moisture condensation in the tank.
Also, running out of fuel tends to draw dirt into the fuel
system.
When hauling the welder between job sites, close the
fuel feed valve beneath the fuel tank.
If the fuel supply is cut off or 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. Use qualified person-
nel to do this per the instructions in the MAINTE-
NANCE section of this manual.
SA-250 WITH PERKINS 104-22 DIESEL ENGINE
TYPICAL FUEL CONSUMPTION DATA
Low idle (1375 RPM )
No Load @ 45 Volts
High idle ( 1800 Rpm )
No load @ 96.6 Volts
50 Amps @ 22 Volts
100 Amps @ 24 Volts
150 Amps @ 26 Volts
200 Amps @ 28 Volts
250 Amps @ 30 Volts
300 Amps @ 32 Volts
350 Amps @ 34 Volts
SA-250
B-2
0.28 gal/hr ( 1.06 ltrs/hr )
0.45 gal/hr ( 1.70 ltrs/hr )
0.51 gal/hr (1.93 ltrs/hr )
0.58 gal/hr ( 2.19 ltrs/hr )
0.70 gal/hr ( 2.65 ltrs/hr )
0.85 gal/hr ( 3.21 ltrs/hr )
1.05 gal/hr ( 3.97 ltrs/hr )
1.31 gal/hr ( 4.95 ltrs/hr )
1.68 gal/hr ( 6.35 ltrs/hr )