background image

 

 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. 

 When working above floor level, use a safety belt to protect yourself from a fall should you get a 

shock. 
 

 

FUMES AND GASES CAN BE DANGEROUS. 

 Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and 

gases. When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at 
the arc to keep fumes and gases away from the breathing zone. When welding with electrodes 
which require special ventilation such as stainless or hard facing or on lead or cadmium plated 
steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as 
possible and below Threshold Limit Values using local exhaust or mechanical ventilation. In 
confined spaces or in some circumstances, outdoors, a respirator may be required. Additional 
precautions are also required when welding on galvanized steel.  

 Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing, cleaning 

or spraying operations. The heat and rays of the arc can react with solvent vapors to form 
phosgene, a highly toxic gas, and other irritating products. 

 Shielding gases used for arc welding can displace air and cause injury or death. Always use 

enough ventilation, especially in confined areas, to insure breathing air is safe. 

 Read and understand the manufacturer’s instructions for this equipment and the consumables 

to be used, including the material safety data sheet and follow your employer’s safety practices. 
 

 

ARC RAYS CAN BURN. 

 Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays 

of the arc when welding or observing open arc welding.  

 Use suitable clothing made from durable flame-resistant material to protect your skin and that 

of your helpers from the arc rays. 

 Protect other nearby personnel with suitable, non-flammable screening and /or warn them not 

to watch the arc nor expose themselves to the arc rays or to hot spatter or metal. 
 
 

  

SELF-PROTECTION  

 Keep all equipment safety guards, covers and devices in position and in good repair. Keep hands, 

hair, clothing and tools away from V-belts, gears, fans and all other moving parts when starting, 
operating or repairing equipment. 

 Do not put your hands near the engine fan. Do not attempt to override the governor or idler by 

pushing on the throttle control rods while the engine is running. 
 

Summary of Contents for Ronch Weld 315MAX

Page 1: ...1 SERIES 315MAX STICK TIG ...

Page 2: ...STALLATION ADJUSTMENT 10 3 1 PARAMETERS 10 3 2 DUTYCYCLE OVER HEAT 11 3 3 MOVEMENT AND PLACEMENT 11 3 4 WELDING POLARITYCONNECTION WAY 12 3 4 1 MMA 12 3 4 2 TIG 12 3 5 CONNECTION TO THE MAINS SUPPLY 13 4 OPERATION CONTROL CONNECTORS 14 4 1 LAYOUT FOR FRONT REAR PANEL 14 4 2 WELDING CURRENT ADJUSTMENT 15 4 3 ARC FORCE ADJUSTMENT 15 4 4 HOT START ADJUSTMENT 16 4 5 WELDING OPERATION 16 4 5 1 Striking...

Page 3: ...n MMA 18 4 6 2 Electrode selection 18 4 7 ARC WELDING DEFECT AND PREVENT METHOD 19 4 8 OPERATION ENVIRONMENT 23 4 9 OPERATION NOTICES 23 5 MAINTENANCE TROUBLESHOOTING 24 5 1 MAINTENANCE 24 5 2 TROUBLESHOOTING 25 5 3 ELECTRICAL PRINCIPLE DRAWING 28 ...

Page 4: ...lf Insulate yourself from work and ground using dry insulation Make certain the insulation is large enough to cover your full area of physical contact with work and ground Take carefully when using the equipment in small place falling off and wet circumstance Never close the machine power before installation and adjustment Ensure to install the equipment correctly and ground the work or metal to b...

Page 5: ...e heat and rays of the arc can react with solvent vapors to form phosgene a highly toxic gas and other irritating products Shielding gases used for arc welding can displace air and cause injury or death Always use enough ventilation especially in confined areas to insure breathing air is safe Read and understand the manufacturer s instructions for this equipment and the consumables to be used incl...

Page 6: ... hollow castings or containers before heating cutting or welding They may explode Sparks and spatter are thrown from the welding arc Wear oil free protective garments such as leather gloves heavy shirt cuff less trousers high shoes and a cap over your hair Wear ear plugs when welding out of position or in confined places Always wear safety glasses with side shields when in a welding area Connect t...

Page 7: ...fects on health However the research on damage of EMF is still ongoing Before any conclusion we should minimize exposure to EMF as few as possible In order to minimize EMF we should use the following procedures Route the electrode and work cables together Secure them with tape when possible All cables should be put away and far from the operator Never coil the power cable around your body Make sur...

Page 8: ... the welder when the problems listed before occurred the alarm light on the front panel is on and at the same time the output current will be cut off It can self protect and prolong the using life and greatly improved the reliability and practicability of the welder For MMA series discrete welding current arc force and hot start can be adjusted by the adjustment knob which can satisfy with several...

Page 9: ...welding current parameter can be adjusted continuously and steplessly to meet with the requirements of welding craft Rectify Inverter Medium frequency transformer Medium frequency rectify Hall device Current positive feedback control Three phase AC DC AC DC 380V 50Hz AC DC 2 4 Volt Ampere Characteristic MMA series discrete welder has excellent volt ampere characteristic seeing the following graph ...

Page 10: ... 9 0 12 5 Welding current range A 10 250 10 315 Max no load voltage V 14 5 105 14 5 93 Duty cycle 40 10mins 40 250A 40 315A 60 225A 60 280A 100 180A 100 220A Electrode Diameter φ1 6 φ5 0 Electrode Type 6013 7018 ect Power factor 0 70 Efficiency 85 Protection class IP23 Insulation class H Cooling AF Weight Kg 15 Dimensions mm 480 190 340 Note The above parameters are subject to change with the impr...

Page 11: ...righten the over heat pilot lamp on the front panel At this time the machine should be relaxed for 15 minutes to cool the fan When operating the machine again the welding output current or the duty cycle should be reduced 3 3 Movement and Placement For MMA series discrete arc welding machine the handles are installed at the top of machine to move it The machine needs immobile equipment to fix to a...

Page 12: ...eed different connection way Please refer to the electrode manual 3 4 2 TIG Ar Workpiece DCEN Welding gun GM 2000 2 4mm 1 Place the welding gun aslant 2 Scrape the electrode with the workpiece 3 Lift arc Steps of scraping arc Steps of scraping arc When TIG operation the shielded gas is input to welding gun directly and the method of lifting arc is scraping arc ...

Page 13: ...re of the brown black blue color to the power switch on the rear panel of welder no phase requirement connect the earth cable of yellow green color to the power cable input of welder When the power supply voltage is over the safe work voltage there are over voltage and under voltage protection inside the welder the alarm light will on at the same time the current output will be cut off If the powe...

Page 14: ... machine start LIFT TIG welding method VRD ON light VRD OFF light VRD select key Choose VRD ON or OFF Welding current and other parameters display Welding current and other parameters display when machine is working Power light Power indicator power on light on Alarm light This alarm light when lit indicates that occurred over voltage over current or overheating inside the machine is protected Par...

Page 15: ... the arc force the arc force 0 10 will be displayed on the digital tube The number 0 10 on the digital tube is not actual arc force but a proportion concept When the digital tube shows 0 the minimum of the arc force the operation of arc force is not in use Operation remark On the digital tube of 0 soft arc application range acid electrode in the middle high current using basic electrode On the dig...

Page 16: ...more hot start current addition Clockwise turning the adjustment knob when hot start LED is on the hot start added current lasts long time the striking is more easy There are no actual added current value around the knob Hot start adjustment is chosen to be based on the electrode diameter and workpiece thickness Operation remark It is available in the striking arc only The interval time for hot st...

Page 17: ...iece Lift up for about 2 4mm scrape up touch 2 4mm 4 5 2 Manipulation of electrode In MMA welding there are three motions to being matched in the end of electrode the electrode moving to the molten pool along axes the electrode swing right and left the electrode moving along welding way The operator can choose the manipulation of electrode based on welding joint sharp welding position electrode sp...

Page 18: ...kness Workpiece thickness mm 2 3 4 5 6 12 13 Electrode diameter mm 2 3 2 3 2 4 4 5 4 6 The welding current reference for different electrode diameter Workpiece thickness mm 1 6 2 0 2 5 3 2 4 0 5 0 5 8 Welding current A 25 40 40 60 50 80 100 130 160 210 200 270 260 300 The relation between the welding current I factor K electrode diameter d I K d Carbon electrode Electrode diameter mm 1 6 2 2 5 3 2...

Page 19: ...t Arc length is too long The electrode angle is wrong Manipulation of electrode is not proper Choosing the proper welding current speed The arc can t be drawn too long The electrode angle should be proper Manipulation of electrode should be correct Incomplete penetration The groove angle or gap is too small the root face is too big Welding parameters are not suitable or the assembly is not good Th...

Page 20: ...to choose and process the groove size Correctly to assemble and ensure clearance Choosing the suitable welding current speed Improve the operation skill of welders Incomplete fusion The welding thermal input is too low The arc direction is lean There are rust dust on the side of groove The slag between the layers is not cleared well Correctly to choose the welding parameters Operation seriously En...

Page 21: ...assemble and ensure clearance Choosing the suitable welding current speed Improve the operation skill of welders Incomplete fusion The welding thermal input is too low The arc direction is lean There are rust dust on the side of groove The slag between the layers is not cleared well Correctly to choose the welding parameters Operation seriously Enhance the clearness of layers Inclusion slag inclus...

Page 22: ...e clearance Choosing the suitable welding current speed Improve the operation skill of welders Incomplete fusion The welding thermal input is too low The arc direction is lean There are rust dust on the side of groove The slag between the layers is not cleared well Correctly to choose the welding parameters Operation seriously Enhance the clearness of layers Cold crack Three reasons will cause col...

Page 23: ...hine and wall 4 9 Operation Notices Read 1 carefully before attempting to use this equipment Connect the ground wire with the machine directly and refer to 3 5 Input power must be AC as three phases 50Hz 220V Forbid working in lacking any phase In case closing the power switch no load voltage may be exported Do not touch the output electrode with any part of your body Before operation no concerned...

Page 24: ...er watch listen to that whether the arc welding machine has shaking whistle calling or peculiar smell If there is one of the above problems find out the reason to get rid of if you can t find out the reason Please contact local this area agent or the branch company Observe that whether the display value of LED is intact If the display number is not intact please replace the damaged LED If it still...

Page 25: ...isplaced it maybe potential danger to user Only professional maintenance personal who is authorized by us could overhaul the machine Guarantee to shut off the arc welding machine s power before turn on the outline of the equipment If there is any problem and has no the authorized professional maintenance personal of our company please contact local agent or the branch company If there are some sim...

Page 26: ... process The welding current adjusted too low Increase the welding current The arc is too long in the welding Use the short arc operation 9 The welding current can not be adjusted The welding current potentiometer in the front panel connection not so good or damaged Repair or change the potentiometer 10 The minimum maximum on the current display disaccord with the actual current The minimum curren...

Page 27: ...t output Working time too long Induce the duty cycle interval work Over voltage Power supply fluctuated Using the stable power supply Under voltage protection Power supply fluctuated Using the stable power supply Too many machines using power supply in the same time Induce the machines using power supply in the same time Over current protection unusually current in the main circuit Test and repair...

Page 28: ...28 5 3 Electrical principle drawing ...

Page 29: ...29 315MAX STICK TIG ...

Reviews: