1. Safety • 1.1. Symbols Explanation The above symbols mean warning! Notice! Running parts, getting an electric shock or making contacts with thermal parts will cause damage to your body and others. The underline message is as follows: Welding is quite a safe operation after taking several necessary protection measures! •...
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Never dip the electrode in water for cooling. Never simultaneously touch electrically “hot” parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welders. ...
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DO NOT add any fuel near an open-flame welding arc or when the engine is running. Stop the engine and allow it to cool before refueling to prevent spilled fuel from vaporizing on contact with hot engine parts and igniting. Do not spill fuel when filling tank. If fuel is spilled, wipe it up and do not start engine until fumes have been eliminated.
Never allow the electrode, electrode holder or any other electrically “hot” parts to touch a gas cylinder. Keep your head and face away from the cylinder valve outlet when opening the cylinder valve. Valve protection caps should always be in place and hand tight except when the cylinder is in use or connected for use.
2. Overview • 2.1. Brief Introduction MULTIMIG F SYN series of welding machines adopts the latest Pulse Width Modulation (PWM) technology and the Insulated Gate Bipolar Transistor (IGBT) power modules. It uses switching frequencies in the 20KHz-50KHz range so as to replace the traditional line-frequency transformer type welding machines.
diodes), and is outputted by inductance filtering. When MIG. Meanwhile, the welding current parameter can be adjusted continuously and infinitely to meet with the requirements of welding craft. • 2.3. Volt-Ampere Characteristic MULTIMIG F SYN series welding machine has an excellent volt-ampere characteristic, whose graph is shown as the following figure.
down with the fanrunning. When operating the machine again, the welding output current or the duty cycle should be reduced. • 3.3. Equipment Connection Operation Steps: 1. Connect the power cable of welding machine with the output switch in electric box on site.
Pressure of the feed rolls remove metal dust from the filler wire’s surface which then find its way to the wire guide. If the wire guide is not cleaned, it gradually clogs up and causes wire feed malfunctions. Clean the wire guide in the following manner: Remove the welding gun’s gas nozzle, contact tip and contact tip’s adapter.
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NO. Parts Welding Voltage and other parameter regulator Welding Current and other parameter regulator Inductance regulator Manual wire key Air check key Water /Air selecting key 2T/4T welding mode selecting key Pre flow/Post flow/Soft start/Burn back selecting key MIG gun connector Spool gun connector Water connector Water connector...
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The feed roller (No.16 in the picture) is factory set for welding filler wires of 0.8-1.0mm and 0.6mm diameter on the other side. The feed roller side must be changed if you use 0.6mm diameter filler wire. Threading the filler wire Threading the filler wire as the follow steps: Open the reel housing by pressing on the opening button and install the wire reel in such a way that it rotates counter clockwise.
4. OPERATION • 4.1. Layout for the front and rear panel 1. Output cathode: When MIG mode, this polarity must connect the work piece. 2. Shield gas connector: Is connected to the gas input pipe of torch. 3. Aviation plug: TIG gun control connecter. 4.
15. Welding current and other parameter display: Welding current and other parameter display when machine is working. 16. Choose welding method key: Pressing the key can choose four kinds material, MMA/MMA VRD/TIG/MIG. 17. Hot start LED: When the hot start LED is on, it can be altered on adjusting dial. 18.
MULTIMIG 400F SYN MULTIMIG 500F SYN • 4.5. Operation environment Height above sea level ≤1000 M Operation temperature range -10~+40°C Air relative humidity is below 90 %( 20°C) Preferable site the machine some angles above the floor level, the maximum angle does not exceed 15℃.
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• 4.6. Operation Notices Read Section §1 carefully before starting to use this equipment. Connect the ground wire with the machine directly. Ensure that the input is three-phase: 50/60Hz, 380V ±15%. Before operation, none concerned people should not be around the working area and especially children.
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5. Maintenance & Troubleshooting • 5.1. Maintenance In order to guarantee safe and proper operation of welding machines, they must be maintained regularly. Let customers understand the maintenance procedure of welding machines. Enable customers to carry on simple examination and inspections. Do your best to reduce the fault rate and repair times of welding machines to lengthen service life of arc welding machine.
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Check the screws and bolts in the machine. If any is loose, please screw it tight. If it is shaved, please replace. If it is rusty, please erase rust on all bolts to ensure it works well. Quarter- Check whether the actual current accords with the displaying value. If they did not yearly accord, they should be regulated.
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Wire reel Motor damaged Check and change it doesn’t Control circuit damaged Check the PCB work The press wheel is loosen or Press it tightly again weld wire skids Wire- feeder The wheel doesn’t fit with the Change the wheel doesn’t diameter of weld wire Wire reel...
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