EN
• Pressure cumulated in long gas hoses will cause a burst of shielding gas
at the beginning of welding, which may cause turbulence or mixing of
air into the shielding gas. The reason for this might also be a faulty or a
poorly adjusted relief valve, which puts too much pressure into the gas
hoses.
• Flow of shielding gas is too low or too high (causes turbulence). In short
arc range a ow of 8 – 15 l/min, in hot arc range 10 – 20 l/min is to be
used.
• Distance between the gun and the work piece is too long. In short arc
welding, keep the gas nozzle at a distance of 10 – 15 mm and in hot arc
welding at a distance of 15 – 30 mm from the work piece.
• Angle of tilt of the gun is too large.
• There is too much draught at the welding location.
10. ORDERING NUMBERS
Gun Length 3,0 m Length 4,5 m
PMT 25 6252513 6252514
PMT 27 6252713 6252714
PMT 32 6253213 6253214
PMT 35 6253513 6253514
PMT 42 6254213 6254214
PMT 30W 6253043 6253044
PMT 42W 6254203 6254204
PMT 52W 6255203 6255204
14
PMT © Kemppi Oy / 1130
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