Magmaweld RS 350M PRO Manuel D'utilisation page 27

RS 350 - 450 - 550 M / MW PRO
A: Suitable wire pressure and conduit dimensions
B: The wire is distorted since the pressure lever is too tight.
C: The roller surface is deteriorated due to excessive pressure on the pressure lever.
D: The conduit length of the roller is small for the wire used. The shape of the wire is distorted.
E: The conduit length of the roller is big for the wire used. The wire cannot be transmitted to the welding area.
Figure 16 : Pressure Setting and Roller Selection Mistakes
3.6 Adjustment of Gas Flow
Make the gas adjustment and gas test by lifting the wire feed roller pressure lever!
• Adjust the gas flow with the flow control valve.
• Practical gas flow rate (CO₂, Ar, mixture) is 10 times
of wire diameter. For example, if the wire diameter
is 0.9 mm, the gas flow rate can be adjusted as
10 x 0.9 = 9 l/min.
• You can use the table on the side for more precise
flow adjustment.
• After adjusting the gas flow, lift the thrust bearing
arm and close the wire feed unit door.
3.7 Using Trigger Modes
• The trigger mode switch selects 2-position, 4-position or pnt position.
• The 2-position operates as shown in Figure 17.
• The 4-position operates as shown in Figure 18. The 4-position provides ease of use for the welder in
long-term and automatic welding operations.
• In the pnt mode, the welding starts at the moment the trigger is pressed, the welding continues until the set
time period is on and stands by as long as the off-time period. The process continues in this manner until the
trigger is released and the welding stops as soon as the trigger is released.
1
Switch is triggered Switch is released
Gas starts instantly Wire stops instantly
Current starts instantly Current stops after
Wire feeding starts burn back
after pre gas Gas stops after post gas
Figure 17 : Using the 2-Position
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2
Switch is triggered
Gas starts instantly
Current starts instantly
Wire feeding starts
after pre gas
USER MANUAL | MANUEL D'UTILISATION | РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ | KULLANIM KILAVUZU
Mild Steel
0.8 8 lt/min and Flux Cored 7 lt/min
Metal Cored
0.9 9 lt/min 8 lt/min
1.0 10 lt/min 9 lt/min
1.2 12 lt/min 11 lt/min
1.6 16 lt/min 15 lt/min
Note: Recommended values in standard conditions.
1 2
Switch is released Switch is triggered
Gas goes on Gas goes on
Current goes on Current goes on
Wire goes on Wire goes on
Figure 18 : Using the 4-Position
Operation 27
Stainless
8 lt/min Aluminium 8 lt/min
Steel
9 lt/min 9 lt/min
10 lt/min 10 lt/min
12 lt/min 12 lt/min
16 lt/min 16 lt/min
3 4
Switch is released
Wire stops instantly
Current stops after
burn back
Gas stops after post gas
EN