Riland ARC 250CT User Manual Download Page 16

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MAINTENANCE

1. Remove dust by dry and clean compressed air regularly, if welding machine is operating in environment

where is polluted with smokes and pollution air, the machine need remove dust every month.

2. Pressure of compressed air must be within the reasonable range in order to prevent damaging to small

components of inner-machine.

3. Check internal circuit of welding machine regularly and make sure the circuit connections are connected

correctly and tightly (especially plug-in connector and components). If scale and rust are found, please

clean it, and connect again tightly.

4. Prevent water and steam from entering into the machine. If that happens, please blow it dry and check

insulation of machine.

5. If welding machine will not be used for long time, it must be put into the packing box and stored in dry

and clean environment.

Summary of Contents for ARC 250CT

Page 1: ...ARC 250CT WELDING MACHINE USER MANUAL...

Page 2: ...hurt or property lose if it is notfollowed The words after this sign means there is potential risk which may cause equipment fault or break if it is not followed Version Version YF TAE 0060 A1 Release...

Page 3: ...N 9 TECHNICAL PARAMETERS TABLE 10 INSTALLATION INSTRUCTION 11 OPERATION INSTRUCTION 12 PANEL FUNCTION INSTRUCTION 13 NOTES OR PREVENTIVE MEASURES 14 QUESTIONS TO BE RUN INTO DURING WELDING 15 MAINTENA...

Page 4: ...arrow space may cause choke Spark and hot workpiece after welding may cause fire Bad connected cable may cause fire Incompletion connection of workpiece side circuit may cause fire Never weld on the c...

Page 5: ...electric shock Keep away from any electric parts Earth the machine and workpiece by professional personnel Cut off the power before installation or checking and restart 5 minutes later The capacitance...

Page 6: ...t the supervisor s inspection when operating in narrow space Air the room and wear breathe preventive facilities Never operate in degrease washing or spray space Using breathe preventive facilities wh...

Page 7: ...not or the shooting wire may stab your eyes and face Keep your eyes face or other naked parts away from the end of torch when feeding the wire manually or pressing the switch For better work efficien...

Page 8: ...ents for adjustment and measurement g Anti disturb capability of other used equipments Users should ensure these equipments and the environment are compatible which may need extra preventivemeasures h...

Page 9: ...urce can offer stronger more concentrated and more stable arc When stick and work piece get short its response will be quicker It means that it is easier to design into welding machine with different...

Page 10: ...ower voltage V 1phaseAC220V 15 Frequency Hz 50 60 No load voltage V 70 VRD voltage V 18 Output current A 30 190 Duty cycle 30 Efficiency 85 Power factor 0 70 Insulation grade H Housing protection grad...

Page 11: ...e earthclampat the other terminal clampsthe work piece 3 Please pay attention to the connecting terminal DC welding machine has two connecting ways positive connection and negative connection Positive...

Page 12: ...rmly connected and then put the power plug to the power source OPERATION INSTRUCTION 1 Turn on the power switch the power led lights up 2 Adjust knobs of welding current and arc striking push make wel...

Page 13: ...CTION ARC 250CT FRONT PANEL ARC 250CT BACK PLANEL NO Function 1 Current meter 2 Abnormal indicator 3 VRD indicator 4 Welding current adjustingknob 5 Power switch The images shown here are indicative o...

Page 14: ...e the intake is not in block or covered it is 0 3 meter from welding machine to objects of environment User should make sure the working area is adequately ventilated It is important for the performan...

Page 15: ...will decrease so please shorten thecable When power voltage departs from the rated value it will make the output current not matched with rated value when voltage is lower than rated value the max out...

Page 16: ...ents of inner machine 3 Check internal circuit of welding machine regularly and make sure the circuit connections are connected correctly and tightly especially plug in connector and components If sca...

Page 17: ...aged replace it B Terminal of output is broken circuit or poor connect Fan is working and abnormal indicator is not lit no welding output A Check if components are poor connects B Check if connector o...

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