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USER MANUAL

INVERTER Based Welding Machines

IMPORTANT

: Read this OPERATOR MANUAL together

with PRESCRIPTION AND COMPLIANCE MANUAL before

to use this equipment. In case of loss one of two parts

contact immediately your dealer.

Allow the operator to consult this manual.

GRAND MIG 351

M U L T I S Y N

GRAND MIG 501

M U L T I S Y N

Содержание GRAND MIG 351 MULTI SYN

Страница 1: ...s OPERATOR MANUAL together with PRESCRIPTION AND COMPLIANCE MANUAL before to use this equipment In case of loss one of two parts contact immediately your dealer Allow the operator to consult this manu...

Страница 2: ...ng trouble shooting 3 4 Installation Operation for TIG Welding 3 4 1 Set up installation for TIG Welding 3 4 2 Operation for TIG Welding 3 4 3 TIG GUN Control 3 4 4 DC TIG welding trouble shooting 3 5...

Страница 3: ...public supply system Consideration should be given to shielding the supply cable of permanently installed arc welding equipment in metallic conduit or equivalent Shielding should be electrically cont...

Страница 4: ...4T trigger operation with crater control settings Dual digital display meters for accurate pre setting and feedback of welding parameters output Internal 4 rolls wire feeder gear driven for up to 300...

Страница 5: ...unction power source MIG MAG 3 Waveform control stable welding arc 4 IGBT technology low power consumption 5 Rated Duty Cycle GRAND MIG 351 MULTI SYN 350A 60 40 C GRAND MIG 501 MULTI SYN 500A 60 40 C...

Страница 6: ...device IGBT after reducing voltage by medium transformer the main transformer and rectifying by medium frequency rectifier fast recovery diodes and is outputted by inductance filtering The circuit ad...

Страница 7: ...Display Meter 12 MMA Hot Start Indicator 13 MMA TIG Current Indicator 14 MMA Arc Force Indicator 15 TIG Down Slope Indicator 16 MIG Mode Indicator 17 MMA Mode Indicator 18 MMA VRD Mode Indicator 19 L...

Страница 8: ...ot covered under machine warranty 2T 4T selector button 25 2T mode the trigger is pulled and held on to activate the welding circuit when the trigger is released the welding circuit stops 4T is known...

Страница 9: ...Lh Digital Display 11 Wire Feeder Rh Digital Display 12 Water Cooling System Error Indicator 13 Spool Gun Indicator 14 Error Overload Indicator 15 Air Check Button 16 Water Air Cooling Selection Butt...

Страница 10: ...e the arc to produce less spatter Wire speed wire size and type shielding gas will all change the effect that the inductance setting has on the welding arc Inductance change will have no practical eff...

Страница 11: ...yed Tips and Tricks MIG Voltage Wire Speed Settings Voltage is essentially the power in the welding arc that sets the heat The wire speed feed simply controls the rate at which the welding wire is fed...

Страница 12: ...manual Stitch Welding This setting causes the arc to trigger for a short fixed period of time This is useful for repetitive tack welding or welding with short runs that limit heat input into the work...

Страница 13: ...holder is shown be connected to the positive socket while the earth lead work piece is connected to the negative socket this is known as DCEP However various electrodes require a different polarity f...

Страница 14: ...achine is switched on and has a power supply Wrong mode selected Check the MMA selector switch is selected 2 Porosity small cavities or holes resulting from gas pockets in weld metal Arc length too lo...

Страница 15: ...of the power source to the rear of the water cooler 7 Connect the gas regulator to the Gas Cylinder and connect the gas line to the Gas Regulator 8 Connect the gas line to the machine inlet gas connec...

Страница 16: ...l meter 7 Assemble front end parts of the TIG torch making sure they are correctly assembled use the correct size and type of tungsten electrode for the job the tungsten electrode requires a sharpened...

Страница 17: ...and tighten Earth clamp not connected to work Connect the earth clamp directly to the work piece wherever possible NO Trouble Possible Reason Suggested Remedy 1 Tungsten burning away quickly Incorrect...

Страница 18: ...lines match the connectors Water cooled model only 6 Connect interconnect data cables to the rear of the wire feeder using the end of the interconnect cable with the shortest terminations Connect data...

Страница 19: ...tip into the tip holder of the torch head and nip it up tightly 18 Fit the gas nozzle to the torch head 19 Open gas cylinder valve and adjust regulator flow should be between 10 25 I min depending on...

Страница 20: ...as a lot less column strength can bend easily and is therefore more difficult to feed Soft wires can easily buckle at the wire feeder where the wire is fed into inlet guide tube of the torch The U sha...

Страница 21: ...nit 5 Feed the wire through the drive roller 6 Lock down the top pressure roller and apply and into the outlet guide tube of the wire a medium amount of pressure us ing the tension feeder adjustment k...

Страница 22: ...a conventional torch This greatly reduces the wire feeding friction and improves the wire feed speed smoothness and consistency thus the welding quality is greatly improved This is especially so with...

Страница 23: ...or to a gas cylinder not included with machine 8 Connect the machine to suitable mains power using the mains input power lead 9 Take the Spool Gun and remove the spool cover 10 Place the Wire Spool on...

Страница 24: ...elding Basic MIG Welding Good weld quality and weld profile depends on gun angle direction of travel electrode extension stick out travel speed thickness of base metal wire feed speed and arc voltage...

Страница 25: ...ck angle of the gun relative to the work piece The correct work angle provides good bead shape prevents undercut uneven penetration poor gas shield and poor quality finished weld Stick Out Stick out i...

Страница 26: ...gas in the MIG process is to protect shield the wire the arc and the molten weld metal from the atmosphere Most metals when heated to a molten state will react with the air in the atmosphere without...

Страница 27: ...flow or too much gas flow Check the gas is connected check hoses gas valve and torch are not restricted Set the gas flow between 6 12 l min flow rate Check hoses and fittings for holes leaks Protect...

Страница 28: ...s a temporary cure it is recommended to replace the liner Wrong size liner Install the correct size liner Blocked or worn inlet guide tube Clear or replace the inlet guide t ube Wire misaligned in dri...

Страница 29: ...he floor level the maximum angle does not exceed 15 Protect the machine against heavy rain AND against direct sunshine The content of dust acid corrosive gas in the surrounding air or substance cannot...

Страница 30: ...lace the display PCB Observe that the min max Values on LED agree with the set value If there is any difference and it has affected the normal welding results please adjust it Check whether the fan is...

Страница 31: ...ht 3 Press the gun switch no output shielded gas No output gas when test gas No gas in the gas cylinder Change it Gas hose leaks gas Change it Electromagneticvalve damaged Change it Output gas when te...

Страница 32: ...on E13 Under voltage Yellow lamp thermal protection always on E14 Over voltage Yellow lamp thermal protection always on E15 Over current Yellow lamp thermal protection always on E16 Wire feeder over l...

Страница 33: ...4 4 Electrical schematic drawing DRIVER...

Страница 34: ...LOKERMANN Srl Via Produzione 16 18 37044 Cologna Veneta VR Italy Tel 39 0442 1722469 lokermann lokermann eu www lokermann eu...

Страница 35: ...4 2 Troublesho oting...

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