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Фрагмент инструкции
Longer duty cycles at lower output currents are possible. The current is continuously variable from 40 to 325 amps DC. LIMITATIONS • The Classic II is not recommended for any processes besides those that are normally performed using DC stick welding (SMAW) and DC TIG welding. Specific limitations on using the Classic II for these processes are described in the Welding Operation section of this manual. Constant voltage welding is available with the optional wire feed module. CLASSIC II behhek I ELECTRIC I Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC B-5 B-5 OPERATION CONTROLS AND SETTINGS The welder/generator controls are located on the Output Control Panel of the machine case front. Diesel engine idler control and start/stop controls are also on the case front. Welding output terminals and ground stud are located on the machine right side, under the door. See Figure B.1 and the explanations that follow. FIGURE B.1 - OUTPUT CONTROLS 1. CURRENT RANGE SELECTOR 2. FINE CURRENT ADJUSTMENT 3. 230 VOLT RECEPTACLE 4. 115 VOLT RECEPTACLE 5. WELD OUTPUT TERMINAL (-) 6. WELD OUTPUT TERMINAL (+) 7. GROUND STUD WELDER/GENERATOR CONTROLS See Figure B.1 for the location of the following features: 1. CURRENT RANGE SELECTOR: Selects continuous current output for constant current stick or TIG applications and constant voltage wire feed applications. The amperages on the dial correspond to the average amperages needed for specific Lincoln welder rods. See Control of Welding Current for more information. 2. FINE CURRENT ADJUSTMENT: Allows fine adjustment of current within the selected output range. See Control of Welding Current for more information. 3. 230 VOLT DUPLEX RECEPTACLE: Connection point for supplying 230 volt power to operate one or two electrical devices. 4. 115 VOLT DUPLEX RECEPTACLE: Connection point for supplying 115 volt power to operate one or two electrical devices. 5. WELD OUTPUT TERMINAL (-) WITH FLANGE NUT: Provides the connection point for either the electrode holder or the work cable. 6. WELD OUTPUT TERMINAL (+) WITH FLANGE NUT: Provides the connection point for either the electrode holder or the work cable. 7. GROUND STUD: Provides a connection point for connecting the machine case to earth ground for the safest grounding procedure. CLASSIC II Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC B-6 B-6 OPERATION CONTROL OF WELDING CURRENT A CAUTION DO NOT turn the CURRENT RANGE SELECTOR while welding because the current may arc between the contacts and damage the switch. See Figure B.2. 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 "buffering" arc with best resistance to pop-outs preferred for most welding. To get this characteristic, set the CURRENT RANGE SELECTOR to the lowest setting that still provides the current you need and set the FINE CURRENT ADJUSTMENT near maximum. For example: to obtain 175 amps and a soft arc, set the CURRENT RANGE SELECTOR to the 190 -120 position and then adjust the FINE CURRENT ADJUSTMENT for 175 amps. When a forceful "digging" arc is required, usually for vertical and overhead welding, use a higher CURRENT RANGE SELECTOR setting and lower open circuit voltage. For example: to obtain 175 amps and a forceful arc, set the CURRENT RANGE SELECTOR to 240160 position and the FINE CURRENT ADJUSTMENT setting to get 175 amps. Some arc instability may be experienced with EXX10 electrodes when trying to operate with long arc techniques at settings at the lower end of the open circuit voltage range. A CAUTION DO NOT attempt to set the CURRENT RANGE SELECTOR between the five points designated on the nameplate. These switches have a spring loaded cam which almost eliminates the possibility of setting this switch between the designated points. FIGURE B.2 - CURRENT CONTROLS CLASSIC II Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC B-7 B-7 _OPERATION_ FIGURE B.3 - DIESEL ENGINE CONTROLS 1. IDLER CONTROL TOGGLE SWITCH 2. IGNITION TOGGLE SWITCH 3. ENGINE PROTECTION WARNING LIGHT 4. START PUSHBUTTON 5. ENGINE HOUR METER 6. AMMETER 7. OIL PRESSURE GAUGE DIESEL ENGINE CONTROLS See Figure B.3 for the location of the following features: 1. IDLER CONTROL TOGGLE SWITCH: Adjusts the running speed of the engine. The switch has two positions, "HIGH" and "AUTO." In "HIGH," the engine runs continuo...