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CONNECTING THE WELDING CURRENT RETURN CABLE (fig.5).
6.4.
The earthing clamp (fig.4) should be firmly attached to the piece being
6.4.1.
welded ( or to a metal bench supporting it ), as close as possible
to the joint being made.
6.4.2.
The quick connector at the other end of the cable will be connected to
the socket identified with a clamp/minus symbol ( - ) on the lower
front panel.
6.5.
CONNECTING THE GAS CYLINDER (fig.6 & 7).
6.5.1.
Stand the gas cylinder on the platform at the rear of the welder and secure with chain supplied. The platform is designed to support
bottles up to a maximum weight of 20kg.
6.5.2.
If using Argon or Argon mixtures, you will need to use the "bull nosed adaptor" supplied. (If you intend to use CO ² gas the regulator will fit
directly onto the cylinder). If using the bull nosed adaptor, fit it to the cylinder first and tighten with a spanner.
6.5.3.
Remove regulator from box and screw it to the bull nosed adaptor (or CO ² cylinder). Take the glossy black plastic gas pipe supplied and
push the free end fully onto the regulator gas outlet. See (fig.6). Note: The regulator supplied may differ from that illustrated.
6.5.4.
Screw the brass fitting on the other end of the gas pipe onto the gas inlet fitting on the rear of the welder. See (fig.7).
6.5.5.
Close the regulator by turning the adjusting knob anti-clockwise to relieve the pressure on the diaphragm before opening the cylinder
valve. If this is not done, pressure from the cylinder can damage the diaphragm and render the regulator inoperative.
6.5.6.
Set the regulator flow rate to 4litres/min depending on the material to be welded, also taking into consideration any draughts which are
strong enough to disturb the gas flow.
fig.6
6.6.
FIT A REEL OF WIRE. Ensure the welder is unplugged from the mains power. The wire feed reel holder will accept reels of wire up
to 15kg as shown in fig.14.
6.6.1.
Referring to fig.8, open the side of the wire feed compartment, and unscrew the reel retaining knob from the end of the rotating reel
holder. Push the reel of wire onto the holder ensuring that the spool is rotating clockwise with the wire drawing off the top of the reel
towards the flexible wire guide on the wire drive unit. The larger spools of wire have a 'moulded in' guide tube which must be located over
the reel engagement pin on the rotating reel holder flange (See fig.8 below). The pin, in conjunction with the reel tension clutch adjuster will
stop heavy reels of wire from free wheeling on the reel holder. See also 'setting wire tension' in section 7.4.
6.6.2.
Retain the reel of wire on the holder by screwing the reel retaining knob back into place as indicated in fig.14.
7. SETTING THE WIRE FEED
MAKE SURE THAT THE WIRE FEED ROLLER, THE WIRE GUIDE HOSE AND THE CONTACT TIP OF THE TORCH MATCH THE DIAMETER AND TYPE OF
WIRE TO BE USED AND ARE FITTED CORRECTLY.
7.1.
The wire feed mechanism has a lower grooved drive roller and an upper pressure roller. The pressure roller is in a separate hinged
housing which is held in place and acted upon by a pressure adjustment knob as shown in fig.9 above. To access the drive mechanism
pull the pressure adjustment knob over to the left and allow it to hinge downwards. As you do so the pressure roller housing will spring
open to the right as shown in fig.11 below.
© Jack Sealey Limited
© Jack Sealey Limited
fig.9
Original Language Version
Original Language Version
fig.4
fig.8
fig.7
fig.10
fig.5
fig.11
SUPERMIG255.V2
Issue:1 - 11/07/22
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