CHIEF MultiMig 521, Instruction Manual

2

INSTRUCTION MANUAL FOR WIRE WELDING MACHINE

IMPORTANT

:  BEFORE STARTING THE EQUIPMENT, 

READ THE CONTENTS OF THIS MANUAL, WHICH MUST 

BE STORED IN A PLACE FAMILIAR TO ALL USERS FOR 

THE ENTIRE OPERATIVE LIFE-SPAN OF THE MACHINE.

THIS EQUIPMENT MUST BE USED SOLELY FOR WEL-

DING OPERATIONS.

 1  SAFETY PRECAUTIONS

WELDING AND ARC CUTTING CAN BE 

HARMFUL TO YOURSELF AND OTHERS. The 

user must therefore be educated against the hazards, 

summarized below, deriving from welding operations. 

For more detailed information, order the manual code 

3.300.758

ELECTRIC AND MAGNETIC FIELDS - May be dangerous.

· Electric current following through any con-

ductor causes localized Electric and Ma-

gnetic Fields (EMF). Welding/cutting current 

creates EMF fields around cables and po

-

wer sources.

· The magnetic fields created by high currents may affect 

the operation of pacemakers. Wearers of vital electronic 

equipment (pacemakers) should consult their physician 

before beginning any arc welding, cutting, gouging or 

spot welding operations.

·  Exposure  to  EMF  fields  in  welding/cutting  may  have 

other health effects which are now not known.

· All operators should use the followingprocedures in or-

der to minimize exposure to EMF fields from the welding/

cutting circuit:

-   Route the electrode and work cables together 

-   Secure them with tape when possible.

-   Never coil the electrode/torch lead around your body.

-   Do not place your body between the electrode/torch   

  lead and work cables. If the electrode/torch lead  

  cable is on your right side, the work cable should also  

  be on your right side.

-   Connect the work cable to the workpiece as close as  

  possible to the area being welded/cut.

-   Do not work next to welding/cutting power source.

EXPLOSIONS

· Do not weld in the vicinity of containers under 

pressure, or in the presence of explosive dust, 

gases or fumes. · All cylinders and pressure regu-

lators used in welding operations should be handled with 

care.

ELECTROMAGNETIC COMPATIBILITY.

This machine is manufactured in compliance with the in-

structions contained in the standard IEC 60974-10 (CL. 

A), and must be used solely for professional purposes in 

an  industrial  environment.  There  may  be  potential  diffi

-

culties in ensuring electromagnetic compatibility in non-

industrial environments. 

DISPOSAL OF ELECTRICAL AND ELECTRONIC 
EQUIPMENT.
Do not dispose of electrical equipment together 
with normal waste! Electrical equipment that has 

reached the end of its life must be collected separately 
and returned to an environmentally compatible recycling 
facility. As the owner of the equipment, you should get 
information on approved collection systems from our lo-
cal representative. 
IN CASE OF MALFUNCTIONS, REQUEST ASSISTANCE 
FROM QUALIFIED PERSONNEL.

Extra precautions are to be observed when working on 

elevated positions.

Electromagnetic compatibility 

In Canada, the EMC classification does not apply to arc 

welding power source. 

Safety standards

To provide minimum requirements and recommendations 

to protect persons who work in an

environment affected by welding, cutting, and allied pro-

cesses see CAN/CSA-W117.2 standard.

1.1 WARNING LABEL

The following numbered text corresponds to the label 

numbered boxes.