Kemppi DC 2000 - Manual (Page 25)

Mastertig aC/DC 000, 500, 500W, 3500W/0701 – 5 © keMppi oy
8. Maintenance
The amount of use and an unusual working environment have a special effect on the need for
maintenance. Proper use and preventive maintenance will help to ensure trouble-free operation
of the machine without unexpected interruptions.
8.1. the WelDing torch
Due to high temperatures and wear, the welding end of the TIG torch requires maintenance
most, but also the condition of the other parts should be checked regularly.
8.1.1. The welding end
Check that...
– all insulations of the welding end are undamaged and in place.
– the gas nozzle is undamaged and suitable for the work.
– the flow of the shielding gas is free and even.
– the electrode is undamaged. Use an electrode size and tip sharpening which are suitable for
the welding job. Sharpen the electrode lengthwise.
– the fastening parts of the electrode are undamaged and that the electrode is tightly fastened
in its place.
8.1.2. The torch cable
Check that...
– the insulation of the handle and the torch cable are undamaged.
– the torch cable has no sharp bends.
Always replace any damaged parts immediately!
Follow the instructions of the torch manufacturer in all maintenance and repair measures.
8.2. cables
Check the condition of the welding and connection cables daily.
J14: [Off] = limit of short press of the TIG switch is 0.7 s
[On] = limit of short press of the TIG switch is 0.3 s
J15: [Off] = AC TIG welding is started in the positive half-cycle
[On] = AC TIG welding is started in the negative half-cycle
J16: 0 -> 2.0 = ratio for the start length of DC in AC TIG
factory setting is 1.0
J17: 0 -> 2.0 = ratio for MMA ignition pulse
factory setting is 1.0
J18: ---------- vacant
J19: ---------- vacant
Do not use damaged cables!
Check also that the mains connection cables that you use are in good condition
and that they comply with all the regulations!
Mains connection cables may be repaired and installed only by an authorized electric shop or
electrician.