Jasic Plasma Cut 60 Operator's Manual

Also see for CUT100 (L201): Operator's manual

Contents

Jasic Plasma Cut 60 Operator's Manual Manual pdf 16 page image

Maintenance and troubleshooting7The following operation requires sufficient professionalknowledge on electric aspects and comprehensivesafety knowledge. Make sure the input cable of themachine is disconnected from the electricity supply andwait for 5 minutes before removing the machine covers.In order to guarantee that the arc welding machine worksefficiently and in safety, it must be maintained regularly.Operators should understand the maintenance methods andmeans of arc welding machine operation. This guide shouldenable customers to carry on simple examination andsafeguarding by oneself, try to reduce the fault rate andrepair times of the arc welding machine, so as to lengthenservice life of arc welding machineTroubleshootingBefore arc cutting machines are dispatched from the factory,they have already been checked thoroughly. The machineshould not be tampered with or altered.Maintenance must be carried out carefully. If any wirebecomes loose or is misplaced, it maybe potential danger touser!Only professional maintenance personnel should repair themachine!Ensure the power is disconnected before working on themachine. Always wait 5 minutes after power switch offbefore opening the case.15Period Maintenance itemDailyexaminationCarry out a full visual inspection. Checkfor any damage to the machine, leads,cables and connections. Replace wherenecessary.Switch on the machine and check for anywarning Led’s and general operationMonthlyexaminationUsing the dry compressed air to clean theinside of arc welding machine. Especiallycheck for build up of dust / debris onintake grills, main voltage transformer,inductance, IGBT modules, the fastrecover diode and PCB, etc. Take carewhen blowing electronic components anddo not dislodge any wiring connectionsCheck the security of output connectionsand plugs. Replace if signs of overheating.YearlyexaminationCarry out an annual service. Check earthcontinuity and insulation resistance of themachine at the relevant points.PLEASE NOTE THIS WORK SHOULDBE CARRIED OUT BY A TRAINEDCOMPETENT PERSON.Fault symptom Possible causeTurn on the machine, the powerindicator illuminates, the fan doesnot work, and the control bu7ondoes not func8on.Overvoltage protec8on occurs: Shutdown the machine, and restart ita>er a few minutes.Turn on the machine, the powerindicator illuminates and the fanworks. When pressing the controlbu7on of the cuAng torch, thesolenoid valve inside the machinefunc8ons, but there is no HFdischarge rustling and the red LEDinside the machine is on.1) The MOSFET (or IGBT) on thetop PCB is damaged. (The drivemodule is damaged.)2) The step-up transformer on thebo7om PCB is damaged.3) T h e c o n t r o l m o d u l e i sdamaged.Turn on the machine, the powerindicator illuminates and the fanworks. When pressing the controlbu7on of the cuAng torch, thesolenoid valve inside the machinefunc8ons, but there is no HFdischarge rustling and the red LEDinside the machine is off.The arc igni8on part fails:1) There is electrode s8ckinginside the discharge nozzle orthe electrode distance of thedischarge nozzle is too long.2) There is short circuit or badcontact in the primary coil ofthe arc igni8on transformer.3) There is leakage of the HFcapacitor 102/10KV.4) The relay is damaged.Arc can not be ignited.1) The input voltage is too low.2) The air pressure is overly highor overly low.