OPERATION | ||
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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
Note: Extreme cold weather starting may require longer glow plug operation
WARNING
Under NO conditions should ether or other starting fluids be used!
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.
Low idle (1375 RPM ) | 0.28 gal/hr ( 1.06 ltrs/hr ) | |
No Load @ 45 Volts |
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High idle ( 1800 Rpm ) | 0.45 gal/hr ( 1.70 ltrs/hr ) | |
No load @ 96.6 Volts |
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50 Amps @ 22 Volts | 0.51 gal/hr (1.93 ltrs/hr ) | |
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100 Amps @ 24 Volts | 0.58 gal/hr ( 2.19 ltrs/hr ) | |
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150 Amps @ 26 Volts | 0.70 gal/hr ( 2.65 ltrs/hr ) | |
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200 Amps @ 28 Volts | 0.85 gal/hr ( 3.21 ltrs/hr ) | |
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250 Amps @ 30 Volts | 1.05 gal/hr ( 3.97 ltrs/hr ) | |
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300 Amps @ 32 Volts | 1.31 gal/hr ( 4.95 ltrs/hr ) | |
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350 Amps @ 34 Volts | 1.68 gal/hr ( 6.35 ltrs/hr ) | |
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