Assessments - 4, GPA: 4
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Facilidade de uso
To stop the engine, turn the “IGNITION” switch to “OFF”. 6. If the engine protection warning light comes on during 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 several minutes to warm the engine. Stop the engine and recheck the oil level, after allowing sufficient time for the oil to drain into the pan. If the level is down, fill it to the full mark again. The engine controls were properly set at the factory and should require no adjusting when received. COLD WEAThER STARTING: With a fully charged battery and the proper weight oil, the engine should start satisfactorily even down to about -15°F (-26°C), it maybe 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! hIGh ALTITuDE OPERATION: The engine will run correctly up to an altitude of 600m (2000ft.). If the engine is to be operated permanently at an altitude above this, the fuel consumption and exhaust emissions may be excessive. Contact the Perkins Application Department for any engine adjustments that may be required. 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 water separator located on the fuel rail. 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 on the separator located on the fuel rail. 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 personnel to do this per the instructions in the MAINTENANCE section of this manual. CLASSIC® 300D PERKINS b-2 b-2 OPERATION ENGINE bREAK-IN DuTY CYCLE Lincoln Electric selects high quality, heavy-duty industrial engines for the portable welding machines we offer. While it is normal to see a small amount of crankcase oil consumption during initial operation, excessive oil use, wet stacking (oil or tar like substance at the exhaust port), or excessive smoke is not normal. Larger machines with a capacity of 350 amperes and higher, which are operated at low or no-load conditions for extended periods of time are especially susceptible to the conditions described above. To accomplish successful engine break-in, most diesel-powered equipment needs only to be run at a reasonably heavy load within the rating of the welder for some period of time during the engine’s early life. However, if the welder is subjected to extensive light loading, occasional moderate to heavy loading of the engine may sometimes be necessary. Caution must be observed in correctly loading a diesel/generator unit. 1. Connect the welder output studs to a suitable resistive load bank. Note that any attempt to short the output studs by connecting the welding leads together, direct shorting of the output studs, or connecting the output leads to a length of steel will result in catastrophic damage to the generator and voids the warranty. 2. Set the welder controls for an output current and voltage within the welder rating and duty cycle. Note that any attempt to exceed the welder rating or duty cycle for any period of time will result in catastrophic damage to the generator and voids the warranty. 3. Periodically shut off the engine and check the crankcase oil level. WELDER OPERATION WARNING ELECTRIC ShOCK can kill. Do not touch electrically live parts r electrode with skin or wet clothing. Insulate yourself from work and ground. FuMES & GASES can be dangerous. Keep your head out of the fumes. use ventilation or exhaust to remove fumes from breathing zone. WELDING SPARKS can cause fire or explosion. Keep flammable material awa. ARC RAYS can burn. Wear eye, ear, and body protectio. The NEMA output rating of the Classice 300D Perkins is 300 amperes at 32 arc volts on a 60% duty cycle (consult Specifications in this manual for alternate ratings). Duty cycle is based on a ten minute period; thus, the welder can be loaded at rated output for six minutes out of every ten minute period. CONTROL OF WELDING CuRRENT CAuTION DO NOT TuRN ThE “CuRRENT RANGE SELECTORE WhILE WELDING because the current may arc between the contacts and damage the switch. The “Current Range Selector” provides five overlapping current ranges. The “Fine Current Adjustment” adjusts the current from minimum to maximum within each range. Open circuit voltage is also controlled by the “Fine Current Adjustment” permitting control of the arc characteristics. A high open circuit voltage setting provides the soft “buttering” arc with best resistance to pop-outs preferred for most welding. To get this characteristic, set ...