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4097616 PATON U-Groove Feed Roller - Aluminium Wire: 0.8 - 1.0mm (2 Roll Drive)
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    Rapid Ref : 4097616  

    PATON Drive Roll for 2 Roll Feeder
    4097616

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    £9.69  EX VAT

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    PATON ProMIG 250-15-2 Parts FAQs

    Guidance on choosing, setting up and looking after the drive rollers and torch parts used on a MIG wire feed system.

    Which drive roller groove do I need for solid, flux-cored and aluminium wire?icon-minus-redicon-plus-red

    The groove shape has to suit the wire. A smooth V-groove is normally used for hard solid wires such as mild and stainless steel. Flux-cored wire is hollow, so it generally needs a knurled (toothed) V-groove or similar profile that grips without crushing the core. Soft aluminium wire needs a smooth U-groove so the wire is supported rather than squashed.

    A cogged U-groove is also used for very soft cored wires. If you are unsure, check the wire maker's recommendation and the feeder manual before ordering.

    How tight should I set the drive roller tension?icon-minus-redicon-plus-red

    Use the setting in the machine manual or the wire maker's advice if there is one. If not, release the tension, then tighten it gradually until the wire feeds steadily, and no more. Too little tension lets the wire slip, while too much can squash or deform the wire and lead to jams or bird-nesting.

    A common check is to feed the wire against a gloved hand or a non-conductive surface at the torch end, with the torch pointed away from you and the manual's safe-feeding method followed. The wire should push out steadily, and the rollers should slip rather than the wire buckling if it is held. Never grip live wire bare-handed or put fingers near the rollers. Reset the tension each time you change the rollers or wire type.

    How can I tell that a drive roller is worn?icon-minus-redicon-plus-red

    Signs include the wire slipping even when the tension is correct, uneven or jerky feeding, shavings or dust building up around the feeder, and a groove that looks widened, flattened or has lost its sharp teeth (on a knurled roller). Knurled rollers tend to wear faster than smooth ones.

    It is good practice to look at the rollers each time a new spool is fitted. When a roller is replaced, check the guide tubes and liner too, as a worn guide tube can bring back the same feed resistance.

    How do I clean the drive rollers, and how often?icon-minus-redicon-plus-red

    Take the rollers off from time to time and clean the grooves with a wire brush to remove drawing compound, dust and dirt that builds up from the wire. Do it with the machine switched off and the supply isolated. Check the grooves for wear while they are out.

    There is no single interval that suits everyone, because it depends on how much you weld, the wire type and the maker's guidance. Using a clean wire path and suitable wire cleaner or lubricant helps, but they will not cure a worn roller.

    See all 6 questions for this category

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