Miller AUTO ARC MW 4150 Owner's Manual page 19

4-3.
RUNNING GEAR INSTALLATION (FIgure 4-2)
a
UNCONTROLLED TILTING OR TIPPING of
unit
can
result In personal Injury
or
equip
ment damage.
Use equipment of adequate capacity
to lift the
unit.
If
using
lift forks to
handle this
unit,
be
sure
the
lift forks
are
long enough to
extend out of the
op
posite
side of the base.
Do
not
place
any
part
of the
body
under the
unit while it is suspended.
Place blocks underf
rame
of unit before installing
running
gear.
1.
Install the two 4 in. (102 mm) casters
and
spreader
bar onto the front
corners
of the welding
power
source
base
as
shown in
Figure 4-2
using 3/8 in.
hardware.
2.
Block the unit up securely in middle to
ease
installa
tion of
rear
wheel/gas cylinder rack assembly.
3.
Slide axle
through cylinder
rack, and install
a
wheel
on
each end of axle with
a
3/4 in. flat washer
on
each
side of wheel.
4.
Secure wheels in place with cotter
pins by bending
both legs of cotter pin
around the axle in
one
direc
tion
or
by bending
one
leg
clockwise and the other
Running
leg
counterclockwise (legs
should conform
to
con
tour
of axle
as
tightly
as
possible).
5. Install cylinder
rack onto welding
power source
base
using
5/16-18
x
3/4 cap
screws
and associated
hardware (see Figure 4-2).
6.
Remove the
two
front cap
screws
in
top
of
welding
power
source
wrapper and discard. Install running
gear handle
onto
wrapper
using
1/4-20
x
3/4
cap
screws as
shown in Figure 4-2.
7. Install cylinder bracket onto
rear
panel
of
welding
power
source as
shown in Figure 4-2 using
1/4-20x
3/4
cap
screws
and existing
holes in
rear
panel.
8. Install safety
chain onto cylinder bracket.
4-4.
OPTIONAL SPW-1 PANEL INSTALLATION
(Figure 4-3)
a
WARNING: ELECTRIC SHOCK
can
kill.
Do not touch live electrical
parts.
Shutdown
welding
powersource,
and discon
nect
input
power
employing lockout/tagging
procedures before inspecting
or
installing.
Lockout/tagging procedures consist of removing
input
power
plug from receptacle, padlocking
line disconnect switch in
open
position,
remov
ing fuses from fuse box,
or
shutting
off and red-
tagging
circuit breaker
or
other disconnecting
device.
Cotter Pin
TC-049 808-C
Figure
4-2.
Running Gear Installation
Two Front
Cylinder
Bracket
____4..~
~
Cap
Screw
_v__
~
Cotter Pin
~
Safety
Chain
Flat
Washers
Flat Washers
Nut
Washer
Spreader Bar
Cap Screw
Casters
Wheel
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