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| B5.2 | OPERATION |
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| SAFETY PRECAUTIONS |
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| CAUTION |
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| WARNING |
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| DO NOT MOUNT OVER COMBUSTIBLE SURFACES. | |||||
| Do not attempt to use this equipment until y | ou | Where there is a combustible surface directly under | ||||||||||||||
| have thoroughly read the engine manufacturerʼs | stationary or fixed electrical equipment, the surface | |||||||||||||||
| manual supplied with your welder. It includes | shall be covered with a steel plate at least .06”(1.6mm) | |||||||||||||||
| important safety precautions, detailed engine | thick, which shall extend not more than 5.90”(150mm) | |||||||||||||||
| starting, operating and maintenance instructions, | beyond the equipment on all sides. |
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| and parts lists. |
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The Classic® 300G uses the GM 3.0L industrial water- | |||||||||||||||||
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| ELECTRIC SHOCK can kill. |
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| • Do not touch electrically live parts or | cooled gasoline engine. |
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| electrode with skin or wet clothing. |
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| RATED OUTPUT |
| DUTY CYCLE |
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| • Insulate yourself from | work and |
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| ground |
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| 250A @ 30V |
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| 100% |
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| • Always wear dry insulating gloves. |
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| 60% |
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| ENGINE EXHAUST can kill. |
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| vent exhaust outside. |
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| DESIGN FEATURES |
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| • Use in open, well ventilated areas or | Control Panel |
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| MOVING PARTS can injure. |
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| Both the engine and the welder controls are located on | |||||
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| • Do not operate with doors open or | one recessed panel at the exciter end of the machine. The | |||||||||
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| guards off. |
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| welder controls consist of a five step “Current Range | |||||
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| • Stop engine before servicing. | Selector” switch and a “Fine Current Adjustment” rheo- | |||||||||
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| • Keep away from moving parts. | stat. The welder is equipped with a “Start” button, an | |||||||||
“Ignition” switch, an “Idler” control switch, and a “Glow | |||||||||||||||||
| See additional warning information at the | Plug” button for easier cold weather starting. |
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| front of this operatorʼs manual. |
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| The control panel also contains an engine temperature | ||||||||
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| Operate the welder with the doors closed. Leaving the | gauge, a battery charging ammeter, an oil pressure | |||||||||||||||
| doors open changes the designed air flow and can cause | gauge, two three prong grounding type receptacles and | |||||||||||||||
| overheating. |
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| four circuit breakers for auxiliary power. |
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| GENERAL DESCRIPTION |
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| operation. |
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| The Classic® 300G is a heavy duty, engine driven, DC arc | All Copper Windings - For long life and dependable | |||||||||||||||
| Engine Idler Control - The Classic® 300G is equipped | ||||||||||||||||
| welding power source, capable of providing constant cur- | with an electronic automatic engine idle control. It auto- | |||||||||||||||
| rent output for stick welding or DC TIG welding. This | matically increases and decreases engine speed | when | ||||||||||||||
| welder is wound with all copper coils, rated at 300 | starting and stopping welding or using auxiliary | |||||||||||||||
| amps/32 Volts, and provides other Classic® features such | power. A | |||||||||||||||
| as improved door latches and stainless hinges. With the | before the engine slows to its low idle speed. The “Idler” | |||||||||||||||
| addition of the optional | control switch on the panel locks the idler in high idle posi- | |||||||||||||||
| Classic® 300G will provide constant voltage output for | tion when desired. |
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| running the | Auxiliary Power - 3.0 kVA of nominal 115/230V, 60Hz, | |||||||||||||||
| optional | ||||||||||||||||
| vides a switch, or | AC. Output voltage is maintained within ± 10% at all | |||||||||||||||
| receptacle and a remote control rheostat for remote fine | loads up to rated capacity. (See | Optional Features in | ||||||||||||||
| current and open circuit voltage adjustment. |
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| Section C for Power Plug Kit.) |
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| The Classic® 300G has an electronic Engine Protection | Welder Enclosure | - The complete welder is rubber | ||||||||||||||
| system. In the event of sudden low oil pressure or high | mounted on a rugged steel “C” channel base. |
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| coolant temperature, the engine immediately shuts down. | The output terminals are placed at the side of the | |||||||||||||||
| The Classic® 300G has a current range of | machines so that they are protected by the door. The out- | |||||||||||||||
| amps with output ratings as follows: |
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| put terminals are labeled (+) and |
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| These units are also capable of providing 3 kVA of | Cranking System - A 12 volt electric starter is standard. | |||||||||||||||
| 115/230 volts of 60 cycle AC auxiliary power. |
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