3
INTRODUCTION
A
few
minutes
spent
reading about
your
new MIGOMAG
MIG
we
ld
ing
machine
will
enable you to
operate
yo
ur
machine efficiently
and b
e
nefit
from its many
features.
ASSEMBLY
INSTRUCTIONS
1. Fit the Heavy-Duty rubber tyred
casto
r
whee
ls
and
rear whee
l
s to
the chassis of the
welder. Ens
ur
e
the
small lip of the cylinder tray
faces
the rear to
enab
le
easy
l
ifting
of the gas
cyli
nd
er.
2.
Install the
cable
lin
er
to
th
e welding
gun cable as
fo
llo
ws:
i.
Lay the torch
an
d lin
er
out
straight.
ii.
Check
t
hat
the
l
iner
has no
ki
nk
s
in it.
iii.
Remove the
line
r
positioning nut
a
t
the mach
in
e end
of the torch.
iv. Remove nozzle,
tip and
tip
holder
if
applicable.
v. Gently feed the
line
r
down through the bicox
cable
,
from the machine
e
nd
of torch,
t
aking
specia
l
care not
to kink it in the process
.
Once
the
l
i
ner reaches the back
of
the swan neck it may be
necessary to
gently
twist
i
t
through
.
vi.
With
the
liner
now
fully
hom
e, rep
l
ace
th
e li
n
er
positioning
nut. (Do
not
over tension)
.
At t
h
e front
end o
f
the
torch there
wi
ll
now be
approx
.
300mm
(12
i
n
ches)
of
liner
protruding from
the swan
neck
.
vii. Gently
stretch the
l
iner a further 4mm
(3/16 inch)
and cut
at
the
tip
of
the
neck
w
i
th a sharp
pair
of
cutters
.
The
li
ner will now spring back into swan
neck
by 4mm.
viii.
Ref
it
tip
holder
,
tip and nozz
l
e.
SETTING UP FOR OPERATION
Fit Torch To Machine
Carefully align gas connection tube and trigger connection
pins with central adaptor. Push in and tighten the lock nut.
Open the wire feed pressure are (Fig. 1) above the feed roll.
Feed the roll to suit the diameter of wire to be used.
Feed Roll Changing (if required)
Remove the
f
eed roll retaining knob
.
P
ull
off feed
ro
ll.
W
h
en replacing
the
feed
roll
, note
t
h
e
wire si
z
e wh
i
ch
is
stamped on the
side
face of the ro
ll.
The required
size
must face inwa
rds
when the ro
ll
is refitted
.
Ensure that
the Woodr
u
ff
Key
is n
o
t l
ost. Fit
th
e
feed
rol
l
a
nd
refit
the
r
eta
ining knob
us
in
g
thumb
and forefinger.
Do not
over
tighten.
Fit The Reel Of Welding Wire
Remove
the
r
ed
hand
nut from
hub
.
Place the
r
ee
l
of
wire on
hub
so
th
at
the wire w
ill
be drawn off from
th
e
bottom
.
Ens
ur
e
that
th
e
pin
o
n th
e
hub
l
oca
t
es
in
the
h
o
l
e
in the
s
id
e of
the
wire
r
eel spoo
l
r
ee
l.
Replace
red
hand
nu
t.
Overrun Adjustment
Tighten or unscrew the hub tension nut in the center of
the hub reel assembly unit sufficient hub friction is
achieved to prevent overrun. This adjustment should
be done with a full spool of wire at maximum wire feed
speed.
Do not over tighten.
FIGURE 1.
Feed Roll Adjustment
Release
the w
i
re end
from
reel and cut off
the
bent wi
re
end
,
taking
care t
h
at the w
i
re does
not
unwind
.
Remove
the nozzle and contact
tip from the we
l
ding gun.
Straighten
about 20cm of the wire and make sure that
the end
is
as blunt as possib
l
e (file
off if
necessary)
.
A
sharp end co
ul
d damage
the
cab
l
e
l
iner
and the contact
tip
of
t
he welding torch
.
Ensure the wi
r
e
is
p
l
aced
correct
l
y on to the
f
eed rolls
.
Feed Roll Alignment
FIGURE 2.
To
adj
us
t, re
l
e
ase the three sc
r
ews ho
l
ding
moto
r
drive
assembly and
l
ower or raise to achieve correct a
l
ignment
(F
ig
.2).
T
hread some wire through the
fee
d rolls
i
nto
t
he guide
tub
e
and
l
ine
r
of
the
weld
i
ng cab
l
e.
C
l
ose
the
w
i
re feed
pressure
arm.
The pressure ad
j
ustment of
the
f
eed ro
ll
s
must be set so that the wire is
fed
even
l
y into the
liner
and
li
ght restriction of the wire can be made without the feed
ro
ll
s s
li
pping
.
Note: Excessive pressure w
ill
cause flattening of
the wire,
loosening
o
f
the wire coating and
undue
wear
of the rolls
.
Switch on machine and set the wire
fee
d
speed dial on a
l
ow
setting
.
Keep the
cab
l
e of t
h
e we
ld
ing to
r
c
h
s
tr
aigh
t
and
press
t
h
e sw
it
c
h
on
th
e torc
h unt
i
l
the wire end comes out
of
th
e gooseneck
.
R
ep
l
ace
the
con
t
act tip and
no
zz
l
e
.
Earth Connection
The earth connection from
th
e we
l
der shou
l
d a
t
al
l tim
es be
made directly on to
the
piece to be
we
ld
e
d
.
The contact
betwe
e
n the
earth
and
the
job s
h
ou
ld
be
as
l
arge
and as
flat
as
poss
i
b
l
e, an
d
a
ll
rust
and paint
.
Connect the earth cable
to
the earth connection socket (5). The MIGOMAG 260, 300,
350 & 400
have
two connection sockets;(5
.
i) is for very
light
welding applications and (5
.
ii)
is for
heavier
welding
applications. The MIGOMAG 400PF4CE
has
three
connection sockets.
Gas Flowmeter/Regulator
To fit
the Flowmeter/Regulator to
the gas cylinder, first open
the cylinder valve
slightly to remove any dirt from the
valve
socket and close valve.
Fit
the
Regulator to
the
valve
socke
t
and hand tighten nut with a suitable size spanner.
Back
off
the pressure regulator
adjusting
knob by
turning
anticlockwise
.
Fi
t
hose tail and
nut
to the gas
hose
and
hold
captive
with
the
hose clamp, (found in the wire
feed
compartment of the
machine adjacent to the wire feed rolls)
.
Connect the gas
hose to the regulator
,
open the cylinder valve
and
adjust gas
flow rate (see Shielding Gas for flow
rates)
.
Note
:
Plug top must be fitted by a qualified electrician.
