1. Disconnect torch lead assembly from machine and remove electrode wire.
2. Place aluminium wire spool onto spool carrier.
3. Remove liner collet from the torch lead's central coupling and pull steel liner from torch lead assembly.
4. Remove gas shroud and contact tip from torch and replace with cylindrical gas shroud an contact tip "A".
5. Fitpolyamid linerinto central coupling and push through leadassembly untilcopper spiral rests firmly against
contact tip. The copper spiral keeps the polyamid liner from becoming too hot and possibly melting.
6. Push liner collet with o-ring into central coupling and secure with collet nut.
7. For polyamid liners of 4.0 mm outer diameter the wire feed unit's steel capillary tube has to be replaced with
a brass support tube. This brass support tube is not required for polyamid liners with 4.7 mm outer diameter.
8. Attachtorchleadtocentralcouplingandcutofflinerjustshortofthefeedroller.Useafinepitchsaw,notpliers.
9. Place remaining polyamid liner between wire spool and feed unit to keep wire from bending and kinking.
10. To thread the aluminium wire into the lead assembly temporarily remove the contact tip.
Threadwireintoliner.Setguideroller(s)tomatchwirediameterandpressureroller(s)toonlyminimalpressure,
so the wire will not be flattened excessive pressure. Let wire run through lead assembly until it portrudes 2 -
3 cm from the contact tip.
11. Replace contact tip and gas shroud
Welding aluminium requires a pure inert gas, such as Argon. The gas flow rate should be set to 10 - 13 ltr/min for
up to 200 A. A minium electrode wire diameter of 0.8 - 1.0 mm is recommended.
Stainless Steel Welding
As with aluminium, as pure inert shielding gas is required. Setting of the welding current as with carbon steel.
Prepare torch lead assembly for aluminium welding, but use standard contact tip and conical gas shroud.
Recommended gas flow rate 8 - 12 ltr/min.To prevent a porous weld seam forehand welding is recommended.
For shielding gas both a mixed gas or pure Argon can be used.
Comprising:PAliner3m,cylindricalgasshroudSB15/15,contacttipSB14-15,0,8/1,0/1,2,guidetubeforPAliner
und assembly instructions.
Aluminium Welding Kit:
Wire Ø Stock-No.
0.8 - 1,2 mm 090 202 7939 with polyamid liner
Welding Mode Selector (no. 6)
2345678901
2345678901
2345678901
Symbol Function
First operation of trigger switch engages continuous welding mode,
second operation disengages
Machinesoperatesaslongastriggerswitch
is held
Stitch-weld mode
Spot-weld mode
Setting of stitch and spot weld periods by potentiometers (nos. 8 + 9)
t1 = setting of weld time
t2 = setting of dwell time
Welding Aluminium
To weld aluminium the following components have to be installed on welding gun and torch lead assembly:
- polyamid liner c/w copper spiral liner
- cylindrical gas shroud
- contact tip "A"
- support tube
It is important to have the feed roller set to the correct electrode wire diameter, otherwise the wire will be deformed
resulting in feed problems.
Select electrode wire to match the work piece material (pure aluminium or alloys). Welding aluminium requires a pure
inert gas, such as argon or helium. Set gas flow rate to 10 - 13 ltr/min.
For shielding gas a mixed gas with a low percentage of CO2 (< 5%) can be used (observe supplier information).
