Elektra Beckum MIG/MAG 301 E Manual De Uso página 32

Welding aluminium requires a pure inert gas, such as Argon or Helium. The gas flow rate should be set to 10-13 l/min
for the MIG/MAG 301 E, for the MIG/MAG 351 E a gas flow rate of 13-16 l/min is recommended. The minimum
electrode wire diameter should be 0.8 - 1.2 mm.
Forehand welding is recommended to keep the seam from tarnishing.
Available aluminium welding conversion kit are listed below.
Conversion kits for aluminium welding:
Stock-no.
132 714 4550 PA-liner c/w Cu-liner
132 714 4541 PA-liner c/w Cu-liner
132 714 4533 PA-liner c/w Cu-liner
4.2 High-Alloy Steels
Depending on the material specification high-alloy steels can be welded just like regular low-carbon steel with mixed
or pure shielding gas. Specific shielding gas mixtures can be adapted. The welding current is set as for low-carbon
steel. The torch lead assembly should be fitted with a polyamid liner. A gas flow rate of approx. 10-13 l/min is
recommended. To prevent a porous weld seam forehand welding is recommended.
5 Safety Precautions/Accident Prevention
Always disconnect from power before servicing or carrying out maintenance or repair work. Servicing of electrical
components should only be carried out by a qualified electrician. This welding power source conforms to the applicable
standards and safety regulations at the time it is shipped from the factory.
The open-circuit voltage is below the legal limit for welding in confined spaces with electrically conductive walls, or in
environments with increased electrical hazard in general (according to UVV 26.0) The welding power source itself
may not be located within an environment with an increased electrical hazard. After actuating the trigger switch of the
torch the electrode wire is under current.
All local regulations regarding accident and fire prevention when welding have to be observed (for Germany these are
UVV 26.0 "Welding, Cutting...").
Always wear welder's gloves, leather apron and dry clothing. Use a welding helmet or hand shield with protective
glasses according to DIN 4647.
Always switch machine off and close gas cylinder valve when work is finished.
Handle gas cylinders carefully; do not throw or heat, keep from falling over. Remove cylinder from machine if machine
is to be hoisted by crane.
Workpieces, which have been degreased with chlorinated solvents, should be rinsed thoroughly with water afterwards.
Otherwise there is danger of phosgene gas developing. For the same reason no degreasing baths should be located
in the vicinity of the work area.
Caution, all metallic fumes are hazardous! This warning applies to lead, copper, cadmium, zinc and beryllium in
particular. Keep work area well ventilated; use respiratory gear if necessary.
6 Service and Maintenance
Elektra Beckum welding machines require only minimal maintenance. Depending on dust built-up, but at least every
3-4 months, the machine should be cleaned with dry and oil-free compressed air and all components given a visual
check.
The contact tip and gas shroud are the parts most exposed to the radiant heat of the arc. They need to be cleaned
regularly of spatters and treated with anti-clogging spray and/or nozzle dip.
Excessive built-up of spatters can short-circuit contact tip and gas shroud, ruining both.
The machine should be checked at regular intervals for visible defects.
A thorough check of the electrical components should be carried out every 6 months. Disconnect machine completely
from power supply (pull plug; switching off circuit breakers or removing fuses is no adequate separation).
Retighten all screw and clamping terminals. Have a qualified electrician check-out and repair any scorched leads or
cables, including the power supply cable.
Check coolant level, if low have a service technician check for the cause.
When ordering spare parts state machine model, production no. and stock number of the required part(s).
Wire-Ø Length
0.6-1.2 3 m
0.6-1.2 4 m
0.6-1.2 5 m