User manual

Technical data
- 50 - 01.10
Repair and maintenance16
Please heed the current safety
and accident prevention regu-
lations during all maintenance
and repair work.
Check regularly16.1
Check the following points for damage
before starting up the welding machine:
Mains plug and cable –
Welding torch and connections –
Ground cable and connection –
Blow out the welding machine every two
months.
Switch the machine off Â
Disconnect the mains plug Â
Unscrew both side panels of the unit Â
Blow out the welding machine with dry, low Â
pressure compressed air. Avoid blowing
directly on the electronic components from
a short distance, to prevent damage
Screw the two side panels onto the machi- Â
ne back again
Never make repairs or technical
changes yourself.
In this case the manufacturer’s
warranty is no longer valid.
If you experience problems or
need repairs, contact a dealer au-
thorised by Lorch.
Torch care16.2
Remove the weld spatter from inside the Â
gas nozzle using suitable tongs.
Spray the inside surface of the gas nozzle Â
with a releasing agent, or use nozzle pro-
tection paste.
This will prevent weld spatter from being 9
burnt on.
i
Technical data
1
M 150 CuSi
BasicPlus
M 150 CuSi
ControlPro
M 170
BasicPlus
2
M 210
BasicPlus
2
M 210
ControlPro
2
M 250
BasicPlus
M 250
ControlPro
M 300
BasicPlus
M 300
ControlPro
Welding
Welding range (I
2min
..I
2max
) A 15..150 15..150 25..170 25..210 25..210 30..250 30..250 30..300 30..300
Welding range (U
2min
..U
2max
) V 14,8..
21,5
14,8..
21,5
15,3..
22,5
15,3..
24,5
15,3..
24,5
15,5..
26,5
15,5..
26,5
15,5..
29,0
15,5..
29,0
No-load voltage V 14,4..
26,9
14,4..
26,9
16,7..
38,0
14,5..
40,3
14,5..
40,3
16,3..
35,1
16,3..
35,1
16,3..
40,2
16,3..
40,2
Voltage setting
steps
7 7 6 12 12 12 12 12 12
Slope characteristic constant voltage characteristic line
ED 100 % A 100 100 70 75 75 115 115 135 135
ED 60 % A 120 120 85 90 90 140 140 175 175
Technical data17