contactor if the power source does not contain a
1.3 ACCESSORY EQUIPMENT
p r i m a r y contactor. In most cases auxiliary items in-
clude instruction books which describe their function
Items required toadapt the Feeder for use under par-
and operation. To simplify the procurement of neces-
t i c u l a r job conditions are accessories. These include
sary hoses and cables, kits are available. These are
i n l e t guide bushings and drive rolls associated with
the type and size of welding wire to be used. See Table
II is included
to aid in the local procure-
I in Section II.
ment or fabrication of needed welding cables.
1.4 AUXILIARY EQUIPMENT
Auxiliary equipment comprises items, in addition to
a c c e s s o r i e s , required to complete a typical welding
installation. Such equipment includes: goggles, helmet,
gloves, welding cables, gas and water hoses and fit-
t i n g s , regulator and flowmeter, shielding gas, weld-
ing wire, a push or pull type welding gun, a Model
AHC-B Control, a power source, and a secondary
Section I I .
a. Unlock and open hinged cover.
This section covers installation of the Feeder and its
b. Insert the conical drive roll into the upper roll
interconnection with the components needed to operate
MIG welding system.
c. Hold cam handle (Fig. 4) depressed to raise
2.2 UNPACKING, INSPECTION, AND ASSEMBLY
conical drive roll in upper roll shaft.
Unpack the Feeder carefully. Inspect the unit
d. Insert the grooved drive roll into the lower roll
shaft. Release cam handle.
NOTE: A jog button is supplied with
the Feeder for attachment to water-
e. Insert inlet guide bushing into drive roll housing
c o o l e d guns. R e f e r t o t h e w a t e r -
c o o l e d gun manual for installation
2.3 STRAIN RELIEF KIT INSTALLATION
Wire Guide Fittings
If the strain relief (Fig. 3) is to be used, screw the
frame onto the bottom of the carriage with the four
screws provided in the kit.
2.4 SITE SELECTION
with "O" Rmg
Select a location for the Feeder so that it will be easy
to adjust the wire feed speed dial (Fig. 3). Position
the Feeder to avoid kinks or sharp bends in the hoses
and cables. If practical, allow room for full opening
of the hinged cover (Fig. 3) and turning the unit on
its side for removal of the bottom cover and inspection
o f the under-carriage components.
2.5 INSTALLING WIRE GUIDE FITTINGS
Select the inlet guide bushing, knurled or conical drive
roll, and grooved drive roll suitable for the wire type
and size to be used as indicated in Table I.
N O T E : If the Feeder is to be used
with a pull gun, do not install drive
rolls, but perform steps a and e.