ESAB A6 SFD1 Series Operating Manual page 9

10. Contact equipment
Single wire 1,6 - - 2,5 mm (4,0 mm). Light duty (D20)
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Supplied as standard with A6 SFD1 (LD version) and used as necessary,
e.g. in restricted spaces, wire sizes up to 4,0 mm.
Use contact tube D20 with contact tip (M12 thread), see table on page 54.
Tighten the contact tip using spanner no. 10 to ensure a good contact.
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For thinner wires, e.g. ø1,6 -- 2,5 mm, use a guide tube and separate thin
wire straightener.
Fit the clamp for the guide tube in the M12 hole for the fixed straighten-
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ing roller on the standard wire straightener. The guide tube should bot-
tom against the contact tip. Trim the length so that the distance to the
feed roller is about 5 mm.
Install the thin wire straightener above the clamp for the wire straigh-
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tener.
Single wire 3,0 - - 6,0 mm. Heavy duty (D35)
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Included as standard with A6 SFD1.
Use contact tube D35 with contact jaws. See also the remarks about contact
tube D20 for wires up to 4 mm in restricted spaces.
Use a standard straightener with the A6, consisting of one fixed and one
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adjustable roller.
Assemble the contact jaws using the M5 bolts supplied, one part of the
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contact jaws on the fixed part of the contact tube and the other part on
the loose half of the split contact tube.
Install the loose half with the contact jaw in place using the M8 hex head
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bolts and tighten fully to ensure good contact between the contact jaws
and the electrode.
Tube electrodes.
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Contact tubes D20 och D35 can be used for tube electrode. If contact jaws
(D35) are used they should be tightened to a moderate pressure only to
avoid deforming the tube electrode. Make sure that good electrical contact is
achieved with the electrode.
Twin wire.
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Always use contact tube D35 for twin wire with a guide tube and separate
straightener.
Fit the clamp for the guide tube in the M12 hole for the fixed straighten-
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ing rollers on the standard wire straightener. The guide tubes should bot-
tom against the contact jaws (Heavy Twin) or against the adapter for the
contact tip (Light Twin).
Trim the length of the guide tubes so that the distance to the feed rollers
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is around 5 mm.
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INSTALLATION