Support and E-Warranty Certificate https://www.vevor.com/support STICK WELDER USR MANUAL Applicable Model: MMA-140/MMA-180/MMA-200 We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represents an estimate of savings you might benefit from buying certain tools with us compared to the major top brands and doses not necessarily mean to cover all categories of tools offered by us.
Stick Welder MMA-140 MMA-180 MMA-200 NEED HELP? CONTACT US! Have product questions? Need technical support? Please feel free to contact us: CustomerService@vevor.com This is the original instruction, please read all manual instructions carefully before operating. VEVOR reserves a clear interpretation of our user manual. The appearance of the product shall be subject to the product you received.
SAFETY Welding is dangerous and may cause damage to you and others, so take good protection when welding. Please refer to the manufacturer's safety guidelines for accident prevention. Professional training is needed before operating the machine. Use labor protection welding supplies authorized by the national security supervision department. Operators should have valid work permits for metal welding/cutting operations. Cut off power before maintenance or repair.
Improper operation may cause fire or explosion. Welding sparks may result in a fire, so please check that no combustible materials are nearby and pay attention to fire hazards. A fire extinguisher should be kept nearby, and it should be used by a trained person. Do not weld in a confined space. Do not use this machine for pipe thawing. Hot workpiece may cause severe scalding. Do not touch hot workpiece with bare hands. Cooling is needed during continuous use of the welding torch.
BRIEF INTRODUCTION OF THE PRINCIPLE The welding machine uses an advanced inverter technology designed rectifier. The emergence of inverter arc welding equipment is due to the emergence of inverter power theory and devices.
INSTALLATION Main paramter ITEM Power Voltage(V) Frequency(HZ) MMA-140 Input Current (A) 110V:37A 220V:27A 110V:43A 220V:36A 110V:43A 220V:40A Output Current 110V:30-120A 220V:30-140A 110V:30-120A 220V:30-180A 110V:30-120A 220V:30-200A Duty Cycle (%) 15%/40℃ 30%/40℃ 30%/40℃ Hot Start YES YES YES Arc Force YES YES YES VRD YES YES YES NO YES YES YES YES YES lift-TIG Hot Stapler Accessory MMA-180 MMA-200 AC 110V/220V ±10% 50/60HZ Adapter*1 ,Stick Electrode Holder*1,Ground cl
Functional Diagram -6-
SITE SELECTION BE SURE TO OPERATE THE WELDER ACCORDING TO THE FOLLOWING GUIDELINES: ● In areas free from moisture and dust; ● In areas with an ambient temperature between 14℉ to 104℉; ● In areas free from oil, steam, and corrosive gases. ● In areas not subjected to abnormal vibration or shock; ● In areas not exposed to direct sunlight or rain; ● Place at a distance of 12" or more from walls or similar obstructions that could restrict natural airflow for cooling.
● Do not use this welder on a circuit with a Ground Fault Circuit Interrupter (GFCI) on it. GFCls are tripped by welding arcs and your welding operations will be interrupted regularly. Generators This welder can be operated from an AC generator. Ensure that the generator can supply a minimum of 5,000 watts of continuous output. The generator must not have an auto-idle fuel-saving feature, and must have the option to turn the auto-idle off.
could cause serious injury to the operator and could damage the equipment. OPERATION Performance Data Plate and Duty Cycle On the machine, there is a plate that includes all the operating specifications for your new unit. The serial number of the product is also found on this plate. The duty cycle rating of a welder defines how long the operator can weld and how long the welder must rest and be cooled. The duty cycle is expressed as a percentage of 10 minutes and represents a maximum welding time limit.
● Prepare an organized,well-lit work area. ● Provide protection for the eyes and skin of the operator and bystanders. ● Attach the ground clamp to the bare metal to be welded, ensuring good contact. Plug the machine into a suitable outlet. ● Completely open the gas cylinder valve. Adjust the gas pressure regulator to the correct flow rate. MMA function:Select MMA by up and down button. 1. Under MMA: The Current/Hot Start / Arc Force can be selected.
of the welding electrode and the thickness of the plate is as follows. Thickness of Welded ＜4 4 ～ 8 ＞ 8 ～ 12 ＞ 12 ≤ 3.5 ф3 ～ 4 ф4 ～ 5 ф5 ～ 6 Parts（㎜） Diameter of Welding Electrode （ф㎜） 2. Welding Current: The welding current depends on the electrode, electrode diameter, thickness of the welded parts, and joint type weld position.
reddening during the welding process and cause the flux skin to fall off, affecting the quality of welding. 3. Connection method of welding output The DC reverse connection method should be used for alkaline electrode welding. Acid electrode welding should use a DC positive connection method. Hot Stapler 1. Select "Hot stapler" via the up and down button. In "Hot Stapler" mode, the Vrd light will be on automatically, and all other functions are not adjustable except "Current". 2.
7. Grind off the excess of the pins using a sander. Apply putty and paint if you wish to finish the surface more finely. WARNING! Once a pin is set to a switch grip and switch is turned on, the temperature of a pin will become 100℃ ∼ 200℃. If poor handling occurs, it may cause burns, blindness, and a fire. ●Wear heat-resistant gloves when working. ●Before setting the pin, make sure that the tip of the switch grip is cold.
compressed air to blow out any dust and dirt that may have accumulated inside the welder. WARNING:DISCONNECT FROM POWER SOURCE WHEN CARRYING OUT THIS OPERATION. 4. Check all cables periodically.They must be in good condition and not cracked. WARNING:ELECTRIC SHOCK CAN KILL! Be aware of the ON/OFF SWITCH. The OFF switch does not remove power from all internal circuitry in the welder.
PROBLEM POSSIBLE CAUSE Machine is not turned ON. Neither INDICATOR LED is illuminated and nothing works on the welder. No input power present. Exceeded duty cycle;thermal protector engaged. INDICATOR LEDS are illuminated and there is no output power from the welder. Insufficient air flow causing machine to overheat before reaching duty cycle. Incorrect voltage supplied to welder. Too long or improper extension cord. Low output or non-penetrating weld.
Ground clamp,ground cable,and/or welding cable get hot. Frequent circuit breaker trips. Bad ground or loose ground connection. Check connection of ground cable,torch or electrode holder. Check connection of the ground cable to the ground clamp.Tighten cable connection to ground clamp if needed. Ensure the connection between the ground clamp and workpiece is good and on clean,bare(not painted or rusted) metal. Machine is not the only piece of electrical equipment on the circuit.
Manufacturer: Foshan Sanqiao Welding industrial Co., Ltd Address：No.
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