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MIG/MAG Combination Gas/No Gas Welder

30-135A

silverlinetools.com

5. Refit the Spool Retainer, Tension Spring and Spool Nut and tighten so the spool will not unravel

on its own

6. If you need to change or turn the Upper Roller (21), so the correct size groove for the wire is in

line with the inner liner of the Torch Cable (14), remove the 2 screws of the Rollers Cover (17) and

use a spanner to remove the roller securing component (Image I), then turn or replace the roller

with the correct size

7. Lift the metal tension bar clear of the point of the Roller Tension Adjuster (19) and move to the

side so there is a sufficient gap between the Upper Roller and Lower Roller (18) for the wire to

feed through (Image J)

8. Carefully release the end of the wire from the Wire Spool (26) and take care not to let the wire

unravel. Ensure that the wire is straight for 75 – 100mm and is cut off cleanly with a smooth tip

that will not damage the Torch Cable liner. There must be no burrs on the wire

9. Slowly feed the wire into the end of the Wire Input (20) across the rollers and into the Torch Cable

liner. Push a little way into the liner carefully until some resistance is felt

10.Swing the metal tension bar into position, ensuring that the wire is centred in the grooves of

the upper and lower rollers. Tension can be adjusted with the Roller Tension Adjuster (19) if

necessary

IMPORTANT:

The Spool Nut should only be adjusted with enough tension that will cause the spool

only to turn when the wire is feeding correctly into the Torch Cable liner and the Roller Tension

Adjuster should be adjusted so the wire will slip on the rollers if there is resistance in the Torch

Cable liner.
11.Cover the wire feeding mechanism with the flap and secure with the Panel Release (16)
12.Isolate the Earth Clamp (9) by placing on a non-metallic, non-conductive surface
13.Set the Wire Feed Speed Dial (6) to the slowest setting
14.Connect the welder to the mains power supply, switch on, and hold the Torch Handle (13)
15.Move the torch away from the machine, so that the Torch Cable is straight and in line with the

wire feed mechanism so the wire will have minimal resistance

16.Ensure that the torch is not touching anything, and squeeze the Trigger (12). The wire feed

mechanism should drive the wire through to the torch (Image H)

17.If the wire is not driven through, disconnect from the mains power supply and adjust the Roller

Tension Adjuster (19)

18.When the wire is propelled out of the end of the torch, switch off and disconnect from the mains

power supply

19.Refit the Tip and the Shroud, and trim the wire so that approximately 3mm projects from the Tip

IMPORTANT:

Use clean compressed air to clean the Torch Cable liner if the wire will not feed

through.

Removing wire reel and end of wire

1. Open the side flap of the welder using the Panel Release (16) and check if the old Wire Spool

(26) is empty

2. If not empty cut the wire at the Wire Spool and loop back and secure on the Wire Spool if

intending to continue using at a later date

3. Lift the metal tension bar clear of the point of the Roller Tension Adjuster (19) and move to the

side (Image J)

4. Use a pair of pliers to draw the last of the old Wire Spool (26) out through the Tip (10) of the

torch

5. Then proceed as per instructions for ‘Installing wire’ above

Configuring for flux wire operation

1. For ‘no gas’ operation using flux wire spools the polarity of the Earth Clamp (9) and the torch

must be correct. Open the side flap of the case using the Panel Release (16)

2. On the right side the cable connections can be seen (Image G). Check that the black cable

goes to the red left positive connection and the red cable goes to the right side black negative

connection. Reverse if necessary

Configuring for gas operation

1. For ‘gas’ operation using non flux plain wire spools
2. The polarity of the Earth Clamp (9) and the torch must be correct. Open the side flap of the case

using the Panel Release (16)

3. On the right side the cable connections can be seen (Image G). Check that the black cable goes

to right side black negative connection and the red cable goes to the red left positive connection.

Reverse if necessary

4. A regulator is required to connect to the Ø4mm gas tube that will adapt to your chosen gas bottle

or cylinder

5. To mount a gas bottle to the rear of the welder, position the welder in the correct position before

adding the bottle. Secure the bottle securely with the strap provided (Image E) and attach the

regulator (not supplied) following the instructions provided. A typical regulator is shown in

Image F. Read all safety warnings provided with or attached to the gas bottle or cylinder

6. Do a final check for all fittings to ensure they are all satisfactory and safe

Operation

IMPORTANT

• Always wear appropriate personal protective equipment for the job that you are about to do. Use

of this machine requires a welding mask, gloves, heat-resistant clothing and, if appropriate, a

respirator

• Always ensure that you have an appropriate fire extinguisher near to the work area
• Always inspect your machine for damage or wear. Pay particular attention to leads and cables. If

any damage is found, DO NOT USE

• Check that all casings or covers are properly closed and secured
• Position the welder in such a way that it will not move or tip in use. Ensure that there is at least

500mm of clear space around the welder to allow proper ventilation

Setting the machine

• To achieve a good quality weld, the Voltage/Current Selector (7) must be set correctly. See chart
• Use Wire Feed Speed Dial (6) to make minor adjustments to wire speed to provide a steady arc.

The correct setting will depend on distance, current, torch speed, and other factors. Experiment

with wire speeds until you find an optimum setting

Duty Cycle

• This machine is not designed for continuous welding. Excessive continuous welding would cause

overheating and damage to internal components

• The duty cycle defines the number of minutes, in every ten minutes, that the machine can weld
• For a duty cycle of 10%, the machine may be used for 1 minute, and then must be allowed 9

minutes to cool. The 60% duty cycle allows 6 minutes in every 10 minutes. See chart

• If the duty cycle is exceeded, the machine will automatically cut-out
• Using the machine at reduced current settings, and maintaining good ventilation will maximise

the duty cycle

15.5V

16.15V

16.6V

17.9V

19.25V

20.75V

Current 1

30A

43A

52A

78A