Fitting A Reel Of Wire; Feeding Wire Through To Torch; Setting Wire Tension - Sealey INVMIG200LCD Instruction Manual

4.3. FITTING A REEL OF WIRE (FIG.6). INVMIG200LCD will accept up to 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.
4.3.1. Remove the retaining control (D) from the end of the spindle (A) by turning the control
90° anticlockwise and pulling it outwards. 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.7.
4.3.2. 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 control (D). Match the indented end of the spigot to
the hole in the end of the spindle. Push the control spigot into the end of the spindle,
against spring pressure and turn it through 90° to lock it in place.
4.4. FEEDING WIRE THROUGH TO TORCH. Open the wire feed mechanism by pushing the
locking/wire tension control (fig.8.1) down to the left allowing the pressure roller
carrier (fig.8.2) to spring up revealing the feed roller.
Ensure that the required feed groove (0.6 or 0.8) is in line with the wire path. See
Section 4.6. on how to reverse or change the roller.
4.4.1. 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.
4.4.2. Straighten about 40-50mm of wire and push it gently through the flexible metal sheathed
cable (fig.8.3) and through the 0.6mm or 0.8mm feed roller groove and on into the torch
cable liner.
4.4.3. Push down the pressure roller carrier onto the wire feed roller and hold it down. Lift up the
locking/wire tension control so that it enters the slot in the pressure roller carrier and snaps
into the indent in its top surface (fig.8). Rotate the tension control to a medium setting i.e.
between 2 and 3.
4.4.4. Remove gas cup (fig.9.2) and contact tip (fig.9.1) 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.
4.4.5. Check welder is switched off and that the earth clamp is away from the torch tip.
Connect the welder to the mains power supply and select the MIG setting by means of
the multi-function control.
4.4.6. Set the voltage control (fig.2.3) to minimum
4.4.7. Set the wire speed control (fig2.2.) to minimum. Keep the torch cable as straight as
possible and press the torch switch. The wire will feed through the torch.
4.4.8. a) Take torch in left hand, slide the contact tip over the wire and screw back into place.
b) Grasp gas cup in right hand, push onto torch head and turn clockwise only.
Do not turn gas cup anti-clockwise, as this will damage the internal spring.
c) Cut wire so that it is just protruding from the cup.
4.5. SETTING WIRE TENSION. Adjust the wire tension by rotating the wire tension control.
Turn clockwise to increase the tension and anticlockwise to decrease the tension.
See fig 10.1.
IMPORTANT: Too little or too much tension will cause wire feed problems and result
in poor welding.
4.5.1. Tension between rollers is checked by slowing down the wire between gloved fingers.
If top feed roller skids the tension is correct. Use as low a tension as possible; too high
a tension could crush the wire and result in a blown fuse.
4.6. TURNING/CHANGING THE DRIVE ROLLER. (See figs.8 and 11.)
Ensure that the wire diameter (0.6/0.8mm) 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 so could cause the wire to slip and/or bind.
4.6.1. Referring to fig.8, open the wire feed mechanism by pushing the locking/wire tension
control (1) down to the left allowing the pressure roller carrier (2) to spring up revealing
the feed roller.
4.6.2. Referring to figure 11, move control (C) and put to one side.
4.6.3. The roller carrier (A) is keyed to the main drive shaft and the drive roller (B) is keyed to the carrier, see below. Place a finger onto the end
of the drive shaft to prevent the carrier moving and slide the drive roller off the carrier with your other hand.
4.6.4. The size of each wire feed groove is printed on the edge of the roller on the same side as the groove.
4.6.5. Turn the roller over to use the other groove or use a roller with different sized grooves as required. The groove to be used should be
positioned furthest away from you to be in line with the drive path.
4.6.6. Check that the key in the carrier (A) is seated properly in its slot. Ensure that the slot on the inside face of the drive roller (B) is aligned
with the key and slide the roller back onto the carrier.
4.6.7. Screw the black roller retaining control (C) back on to the end of the drive shaft and tighten.
© Jack Sealey Limited
fig.9
Original Language Version
fig.6
fig.7
fig.8
fig.10
fig.11
INVMIG200LCD ISSUE:1 - 11/08/17