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OWNER’S MANUAL                                                                    - 19 -                                                              YF-48N    A/0

 

REGULAR MAINTENANCE 

For  abnormal  conditions  that  have  been  described  in  “Initial  Diagnosis  for  an  Abnormal  Phenomenon”  and  “Abnormal 

Status  Shown  by  Indicator  Lamps  and  Relevant  Treatment  Countermeasures”,  the  reasons  should  be  found  out  in 

accordance with the following sequence then the relevant treatment countermeasures should be determined.   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Failure and Abnormity Examining 

Power pilot lamp flashes, but the machine does not work. 

Examine whether the manual switch is proper for use. 

Examine whether there is 

voltage on output of the 

machine. 

Replace 

manual 

switch. 

Control cable   

Examine whether 

the cable is cut off. 

Control parts failure 

Contact to us for 

repairing 

Replace the 

cable

 

The wire feeding circuit 

is damaged Contact to 

us for repairing 

The wire feeder does not work. 

Press the manual switch, examine whether there is air flow. 

Examine whether there 

is 24V voltage in both 

ends of the motor. 

Test and check the welding 

gun switch to see 

whether it works normally 

 

Examine whether 

the wire feeding 

wheel is stuck. 

 

The wire feeding 

circuit is damaged 

Replace the board 

Remove the 

dirt to keep 

smooth 

rotation. 

 

The motor failure

 

Replace the motor

 

Examine whether 

the control cable is 

damaged. 

Replace the 

weld gun switch

.

 

Replace the control wire 

or connect the wire.

 

 

Examine whether there 
is DC 24V output of the 

machine. 

Examine whether the 

plug has improper 

contact. 

If the control panel 

is damaged, 

replace it.

 

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Summary of Contents for MIG-350

Page 1: ......

Page 2: ...truction 5 6 Panel function instruction 7 7 Welding parameter recommendation 9 8 Circuit schematic diagram 11 9 Notes or prevention measures 12 10 Questions to be run into during welding 13 11 Mainten...

Page 3: ...ractors should be used to avoid breathing gases Arc rays Harmful to your eyes burn your skin Wear suitable protective mask light filter and protective garment to protect eyes and body Prepare suitable...

Page 4: ...precisely controlling the short circuiting transfer and mixed transfer of welding producing excellent welding characteristic Compared with silicon controlled welding machine and welder with taps our...

Page 5: ...rrent adjustment A 50 350 Output voltage V 16 5 31 5 Duty cycle 60 Power factor 0 93 Efficiency 85 Type of wire feeder Panasonic interface Wire feed speed m min 3 15 Post flow time S 1 5 0 5 Welding w...

Page 6: ...racket of the wire feeder select different wire feeding groove according to the welding wire diameter 7 Loosen the pressure arm feed the welding wire into wire feeding pipe through gadget wheel and gr...

Page 7: ...OWNER S MANUAL 6 YF 48N A 0 Explanatory drawing for Installation of MIG 350 CO2 meter Power supply 3Phase 380V...

Page 8: ...nction When the switch is in the solid core position CO2 gas welding wire is used When the switch is in the flux cored position self shielded welding wire is applied 3 Gas examining welding change ove...

Page 9: ...r 3 Abnormal indicator 4 Power indicator 5 Welding voltage adjustment 6 Arc trait adjustment 7 Welding current adjustment 8 Flux core sold wire switch 9 Wire diameter selection 10 Gas purge weld switc...

Page 10: ...2 2 1 1 6 6 2 22 20 0 2 26 60 0 2 24 4 2 26 6 4 45 5 5 50 0 1 15 5 1 15 5 2 20 0 1 1 2 2 1 1 2 2 1 1 6 6 2 22 20 0 2 26 60 0 2 24 4 2 26 6 4 45 5 5 50 0 1 15 5 1 15 5 2 20 0 1 1 2 2 1 1 2 2 1 1 6 6 3...

Page 11: ...3 35 5 4 40 0 2 25 5 2 20 0 2 25 5 H H i i g g h h w w e e l l d d i i n n g g s s p p e e e e d d 1 1 0 0 0 0 8 8 0 0 9 9 4 45 50 0 1 14 40 0 1 19 9 2 20 0 1 16 60 0 1 10 0 1 15 5 1 1 2 2 0 0 8 8 0...

Page 12: ...OWNER S MANUAL 11 YF 48N A 0 CIRCUIT SCHEMATIC DIAGRAM...

Page 13: ...ke sure the working area is adequately ventilated It is important for the performance and the longevity of the machine 2 Do not over load The operator should remember to watch the max duty current Res...

Page 14: ...substance such as oil dirt rust paint etc on the base metal MAINTENANCE WARNING The power shall be cut off completely before all maintenance overhaul works Make sure to pull out power plug before ope...

Page 15: ...hether blowholes are blocked up while daily maintenance is carried out Some parts and components have to be cleaned or replaced if it is necessary Our original parts and components must be used for th...

Page 16: ...the extended part too small the arc will be unstable Wire diameter and the tube inner diameter match or not Reason of unstable arc please use the suitable tube Partial winding and extended Reason of...

Page 17: ...move and wearing out of pressed wire the narrowing of its contact surface Lead to unstable arc and wire sending Position Checking keys Remarks Torch cable 1 If torch cable over bended 2 If the metal c...

Page 18: ...column of Abnormal items on up right of the list please inspect and maintain for the corresponding items which have mark in the column according to the following list respectively Earlier Checking Dia...

Page 19: ...e feeding pipe and cable diameter Worn blocked up or deformation etc Body of weld gun 1 Loose connection of conductive tip nozzle and nozzle contactor 2 Contactor of weld gun body is not plunged in or...

Page 20: ...parts failure Contact to us for repairing Replace the cable The wire feeding circuit is damaged Contact to us for repairing The wire feeder does not work Press the manual switch examine whether there...

Page 21: ...f control board Please contact with the dealer or the factory Abnormity Indicator lamp on Power Indicator lamp on Air fan operates normally 1 IGBT damage 2 Fast recover rectifier damage 3 Control boar...

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