Advertisement
4.8.
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.
4.9.
FITTING A 15KG REEL OF WIRE. MIGHTYMIG 250 will accept either a 5kg or a 15kg 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.
4.9.1.
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 bottom 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.
4.10.
FEED WIRE THROUGH TO TORCH. Referring to fig.9, 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. Ensure that the required feed groove (0.8 or 1.0) is
in line with the wire path. See Section 4.13 on how to reverse or change the roller.
4.10.1.
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.
4.10.2.
Straighten about 40-50mm of wire and gently push it through the flexible metal sheathed cable (3) and through the 0.8 or 1.0mm feed
roller groove and on into the torch cable liner.
4.10.3.
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.11. Rotate the tension knob to a medium setting i.e. between
2 and 3.
4.10.4.
4.10.4.
R R emove gas cup (fig.10-2) and contact tip (1) from end of torch as follows:
emove gas cup (fig.10-2) 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.
b) Grasp gas cup firmly in your right hand.
c) Turn gas cup clockwise only and pull it off end of torch tip.
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) d) Unscrew
Unscrew copper contact tip (right hand thread) to remove.
copper contact tip (right hand thread) to remove.
fig.10
4.10.5.
4.10.5.
C C heck welder is switched off "0", and that the earth clamp is away from the torch tip. Connect the welder to the mains power supply and
heck welder is switched off "0", and that the earth clamp is away from the torch tip. Connect the welder to the mains power supply and
set the voltage switch to one.
set the voltage switch to one.
4.10.6.
4.10.6.
S S et the wire speed knob to position 5 or 6. Keep the torch cable as straight as possible and press the torch switch. The wire will feed
et the wire speed knob to position 5 or 6. Keep the torch cable as straight as possible and press the torch switch. The wire will feed
through the torch.
through the torch.
4.10.7.
4.10.7.
W W hen the wire has fed through, switch welder off, unplug from mains.
hen the wire has fed through, switch welder off, unplug from mains.
© Jack Sealey Limited
fig.7
fig.9
a) Take torch in left hand with the torch tip facing to the right.
Original Language Version
fig.8
MIGHTYMIG250.V2 Issue 2(F) 22/12/21
fig.11
Advertisement
