Section 2 - Operating Instructions - Lincoln Electric REDI-MIG 4S Operator's Manual

Section 2 - OPERATING INSTRUCTIONS

• D o not touch electrically live
parts or electrode with skin or
wet clothing.
• I nsulate yourself from work
and ground.
ELECTRIC
• A lways wear dry insulating
SHOCK
gloves.
can kill
• K eep your head out of fumes.
• U se ventilation or exhaust to
remove fumes from breathing
zone.
FUMES AND
GASES can be
dangerous
• K eep
away.
• D o not weld upon containers
which have held combusti-
WELDING SPARKS
bles.
can cause fire or
explosion
• W ear eye, ear and body
protection.
ARC RAYS
can burn
IMPORTANT SAFETY NOTE: In 2T mode {refer point 10 below}, this DC
Constant Voltage wire welder provides "COLD" electrode when the gun
trigger is not operated. Conversely, the output terminals are "LIVE" when
the gun trigger is "activated" when pressed in 2T mode, or triggered on
in 4T mode.
1. WIRE FEED SPEED CONTROL (WFS) –
adjust the speed at which the wire feeds when welding. This
is in effect a current control as the power source will deliver
the current necessary to melt the wire. The higher the speed,
the more current will be required. Wire feed speed range is
approximately 1 to 20 m/min.
Operation of the gun trigger switches the wire feed motor on
and off. The wire feed motor is dynamically braked to minimise
wire over run after welding has ceased.
2. TORCH CONNECTION – Euro torch connection
3. GAS PURGE/WIRE INCH –
located on the REDI-MIG 4s Use the gas purge momentary
®
toggle switch to operate the gas solenoid to purge air from the
gas supply after connecting a new gas cylinder. Gas purge will
only operate while the toggle switch is held upwards. Use the
same toggle switch to operate the wire feed motor and "cold"
inch the wire, by pushing the toggle switch downwards.
Page 10
WARNING
flammable material
Use this control to
A two position toggle switch
REDI-MIG
4. 2 STEP/4 STEP TRIGGER OPERATION –
toggle switch located on the REDI-MIG
of operation of the gun trigger. In 2 step mode, the gun trigger is
pressed to start welding and released to stop.
In the 4 step mode, pressing the gun trigger only operates the
gas solenoid, allowing shielding gas to flow. Releasing the gun
trigger activates the contactor which starts the wire feed motor
and connects welding current to the wire so that welding may
commence. To stop welding, the trigger must again be operated;
pressing it stops the wire feed, activates the burn back time
delay and opens the contactor after the pre-set burn back time.
Releasing the trigger stops the gas flow.
To recommence welding, the above cycle must be repeated.
4S Wire Feeder
®
A two position
4s provides two modes
®
4
3
1
2
IM6020