Sealey MIGHTYMIG170 - Manual (Page 4)

3.6 CONNECT THE TORCH CABLE TO THE WELDER. Align the pins
on the euro connector with the socket on the welder front panel as
shown in fig.5. Push the connector into the socket and rotate the
locking ring (A) clockwise so that it draws the plug into the socket as
shown in fig.6.
Note: damage to torches and cables is not covered by warranty.
3.7 FITTING A 15KG REEL OF WIRE. MIGHTYMIG models 190 & 210
will accept either a 5kg or a 15kg reel of wire. Mightymig 170 will
only accept a 5kg reel of wire. ensure that the wire diameter
used, is matched by the correct groove size in the drive wheel and
the correct tip size on the torch as well as the correct torch liner.
Failure to do this could cause the wire to slip and/or bind.
3.7.1 Unscrew the locking knob from the end of the spool holder (see
fig.7) and remove the spacer. Slide the reel of wire onto the spool
holder and ensure that the clutch pin at the back of the spool holder
engages into the guide hole in the wire reel moulding. This will
prevent the wire reel from freewheeling on the spool holder. When
using a 5kg reel, slide the spacer onto the spool holder before
refixing the locking knob. ensure that the wire is coming off the top
of the reel in the direction of the wire drive unit as shown in fig.8
which shows a 15kg reel of wire in place on the spool holder.
3.8 FITTING A 5KG REEL OF WIRE. MIGHTYMIG 170 will only accept
a 5kg reel of wire. ensure that the wire diameter used, is matched by
the correct groove size in the drive wheel and the correct tip size on
the torch as well as the correct torch liner. Failure to do this could
cause the wire to slip and/or bind.
3.8.1. Remove the retaining knob (d) from the end of the spindle (A) by
turning the knob 90° anticlockwise and pulling it outwards (see fig.9) .
Remove the spring (C) and the retaining disc (B) from the end of the
spindle also. Slide the reel of wire over the spindle and hold it against
the back plate so that the hole in the reel rests on the flange (e).
ensure that the wire is coming off the top of the reel in the direction
of the wire drive unit as shown in fig.10.
3.8.2 Retain hand pressure on the reel to keep it on the flange and slide
the retaining disc (B) over the end of the spindle and into the hole in
the reel. Note that the disc (B) has a hexagonal hole in it which fits
onto the hexagonal portion of the spindle. Keep the disc under hand
pressure to retain the reel. Place the spring (C) over the spigot of
the retaining knob (d). Match the indented end of the spigot to the
hole in the end of the spindle. Push the knob spigot into the end of
the spindle, against spring pressure and turn it through 90° to lock it
in place.
fig.5
fig.6
fig.7
fig.8
fig.9
fig.10
3.9 FEED WIRE THROUGH TO TORCH. Open the wire feed
mechanism by pushing the locking/wire tension knob (1) down to the
right allowing the pressure roller carrier (2) to spring up revealing the
feed roller as shown in fig.11. ensure that the required feed groove
(0.6 or 0.8) is in line with the wire path. See Section 3.12 on how to
reverse or change the roller.
3.9.1 Release the wire from the reel and cut off any bent portion ensuring
that there are no burrs left on the end of the wire. Keep the wire under
tension at all times to prevent it uncoiling.
3.9.2 Straighten about 40-50mm of wire and gently push it through the
flexible metal sheathed cable (3) and through the 6 or 8mm feed roller
groove and on into the torch cable liner.
3.9.3 Push down the pressure roller carrier onto the wire feed roller and hold
it down. lift up the locking/wire tension knob so that it enters the slot
in the pressure roller carrier and snaps into the indent in its top surface.
See fig.13. Rotate the tension knob to a medium setting i.e. between 2
and 3.
3.9.4 Remove gas cup (fig.12-2) and contact tip (1) from end of torch as follows:
a) Take torch in left hand with the torch tip facing to the right.
b) Grasp gas cup firmly in your right hand.
c) Turn gas cup clockwise only and pull it off end of torch tip.
 WARNING! do not turn gas cup anti-clockwise, as this will damage
the internal spring.
d) Unscrew copper contact tip (right hand thread) to remove.
Original Language Version MIGHTYMIG170, MIGHTYMIG190, MIGHTMIG210 Issue: 2 - 26/02/10