Operation - MAC TOOLS MW145 Owner's Manual

SECTION
4-
OPERATION
READ SAF
of manual
ETY BLOCKS
at
beginning
before
proceeding.
MOVING PARTS
can cause
injury.
Keep
away from
pinch points such
as
drive rolls.
Do not change
Keep
all doors,
panels,
covers, and
guards
closed
I
welding.
Arcing
inside switch
and securely in
place.
switch
to
fail.
Voltage
can
dam
switch position while
age contacts, causing
ARCING
can
damage switch.
1 2 3
~S8
1 Insulating Gloves
2 Safety Glasses With Side
Shields
3
Welding
Helmet
Wear dry insulating gloves, safety
glasses with side shields, and
a
welding
helmet with
a
correct
shade of filter (see ANSI Z49.1).
sb3.1 10/91
Figure
4-1.
Safety Equipment
1 Wire Speed Control
Ref. ST-801 023/ST-172 500
Tools Needed:
Use control to select
a
wire feed
speed.
As
Voltage switch setting
increases, wire
speed
range also
increases. The numbers around
the control
are
not
a
wire feed
speed (see
rear
cover).
Use
switch to
select
an arc
voltage.
The higher the selected number,
the thicker the material that
can
be
welded (see end of Parts List).
Use switch
to turn
unit On and Off.
Connect work
clamp to clean,
paint-free location
on
workpiece,
as
close
as
possible
to
weld
area.
Use wire brush
or
sandpaper to
clean metal at weld joint
area.
3
Power Switch
Figure 4-2. Controls
OM-173
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