12
5. Stitch timer – This is used in combination with the spot welding control. This sets the
interval time between spot welds.
When you press the torch switch the machine will do a spot weld as set by the spot
welding control knob and then a delay time set on stitch welding knob and then another
spot weld is carried out. To stop stitch welding release the torch trigger.
6. Spot timer – This adjusts the amount of time the weld will last. When you press the
torch switch the machine will do a single spot weld according to the time you have set
and then stop, then release torch switch. Press torch switch again to do another spot
weld.
7. Warning LED – Lights when machine senses output power problem and shuts down
machine
8. Overheat warning LED – Shows went plant has overheated due to overwork of duty
cycle and machine will stop working – fan still runs until plant has cooled, light will go off
and machine will start working again.
DO NOT TURN OFF MACHINE WHILST LAMP IS LIT - ALLOW TO COOL FIRST.
9. Power on LED – Lights when machine is turned on
10. MMA/MIG/TIG Switch – Select between MMA, MIG or TIG operation – WARNING –
When set to MMA operation output terminals are continuously live.
11. 2T/4T selector switch – In 2T position when torch trigger is pressed welding starts and
when trigger is released welding stops. In 4T position when trigger is pressed and
welding arc is established you can release trigger and welding continues, upon
pressing trigger and releasing again the welding stops – this is also know as trigger
latching.
12. Arc force control - Gives further adjustment on weld characteristics, on traditional
transformer machines this was known as choke. Low setting is ideal for automotive
work.
Lower setting = softer weld with less splatter and less penetration – for thinner materials
Higher setting = harsher weld with more splatter and penetration – for thicker materials
Tips on operation:
Wire reel holder – remove retainer screw cap and fit wire reel and refit securing screw cap. The
reel holder features an internal adjustable breaking system so that reel of wire stops quickly
when torch trigger released, other wise wire reel would continue for a few seconds causing wire
to come of sides of reel and cause tangle (birds nest)
Wire feed assy – make sure rollers are correct size for wire diameter selected, to change rollers
release retaining knurled head screw fit rollers onto shafts making sure the right size groove is
in line with wire and refit retaining screws. Do not over tighten wire feed pressure rollers as this
can cause premature motor and roller failure. TIP: Correct way to adjust tensioners is to slacken
off pressure so that wire does not feed, slowly adjust pressure until wire feeds smoothly, you
should be able to stop wire feeding by holding wire and it should slip on rollers. If you have too
little pressure wire will slip when welding causing unwanted Burnback into tips, if you have too
much pressure wire can snag in rollers when wire hits work and cause wire tangle by rollers.