valutazioni - 3, GPA: 3.3 ( )

Produttore : Lincoln Electric File Size : 460.88 kb File Nome : ece864fd-b5b0-4ebc-bc99-636ff08d9857.pdf Lingua di insegnamento:

MOVING PARTS can injure. • Do not operate with doors open orguards off. • Stop engine before servicing. • Keep away from moving parts. See additional warning information at the front of this operator’s manual. Operate the welder with the doors closed. Leaving the doors open changes the designed air flow and can cause overheating. Starting the Classic III Continental TM27 Gasoline Engine 1. Turn the Idler control switch to “High”. 2. Turn the Ignition control switch to “On”. 3. Pull out the choke control. 4. Press the Start button. 5. If the engine fails to start in 60 seconds, wait 30 seconds before repeating the above procedure. 6. Allow engine to run at high idle speed for several minutes to warm the engine. Cold engines tend to run at a speed too slow to supply the voltage required for proper idler operation. 7. As engine warms, slowly return the choke control to the in (off) position. Starting the Classic III D Continental TMD27 Diesel Engine 1. Turn the Idler control switch to “High”. 2. Turn the Ignition control switch to “On”. 3. Push the reset button. 4. Press the Glow Plug button for 10 to 20 seconds. 5. Press the Start button. Release both buttons when engine starts. 6. If engine fails to start in 60 seconds, the reset button will pop out. Wait 30 seconds, reset and repeat the above procedure. 7. Allow engine to run at high idle speed for several minutes to warm the engine. Cold engines tend to run at a speed too slow to supply the voltage required for proper idler operation. Note: Extreme cold weather starting may require longer glow plug operation. WARNING Under NO conditions should ether or other starting fluids be used in conjunction with the glow plugs. This may cause an explosion or fire! Stopping the Engine 1. Turn the Ignition control switch “Off” At the end of each day’s welding, 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. In gasoline engines, failure to turn fuel off when traveling can cause carburetor flooding and difficult starting at the new job site. In diesel engines, 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. See the Engine Operating Manual. CLASSIC III AND IIID B-2 B-2 OPERATION Range Selector” to the 190-120 position and then WELDER OPERATION WARNING adjust the “Fine Current Adjustment” for 175 amps. When a forceful “digging” arc is required, usually for ELECTRIC SHOCK can kill. • Do not touch electrically live parts or 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 away. ARC RAYS can burn. • Wear eye, ear, and body protection. Duty Cycle The NEMA output rating of the Classic III & Classic III D are each 300 amperes at 32 arc volts on a 50% 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 five minutes out of every ten minute period. Control of Welding Current CAUTION DO NOT TURN THE “CURRENT RANGE SELECTOR” 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 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 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 the 240-160 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. 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. Idler Operation Start the engine with the “Idler” switch in the “High” position. Allow i...

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