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K163 UNDERCARRIAGE
The undercarriage includes casters, wheels, a handle,
and related hardware. Casters are mounted at the front
and wheels at the rear of the platform. The handle is
bolted to the front of the platform so the wire feeder can
be tilted back and wheeled like a two-wheel truck.
Installation sheet M13424 is provided with the
undercarriage.
K178-1 MOUNTING PLATFORM
This is a turntable type platform for mounting the LN-
742 to the top of Idealarc power sources. Bolt the
platform to the lift bail per the instructions (M16260)
supplied with the platform.
K589-1 REMOTE
CONTROL KIT
Provides remote potentiometer control of weld speed
and arc voltage up to 16.4 ft (5.0 m) from the wire
feeder. Power source must have remote control
capability. (K856 Power Source Remote Kit required for
CV-300/400-I, and smaller CV- Model machines below
Code 9900.) Install K589-1 Kit per S20520 installation
instructions provided with the kit.
K590-1 WATER
SOLENOID KIT
Includes a solenoid valve already attached to a
mounting bracket and supply connection manifold
assembly for easy installation on the upper rear panel
of the LN-742 case. Also includes water-cooled gun
tube fittings and self-sealing outlet and inlet quick-
connectors for mounting to the front of the LN-742
case.
K590-2 WATER
CONNECTION KIT
This kit is the same as the K590-1 except that it does
not include the solenoid for water coolers requiring
continuous flow.
K857 REMOTE VOLTAGE
CONTROL KIT
Installs on the side of the LN-742 control box cover and
gives voltage control at the wire feeder.
K857 can be installed on the LN-742 when it is used
with newer Lincoln power sources that are equipped
with a 6-socket ms-type receptacle or K864 14-pin
connector adaptor for connection of the plug on the 28
ft (8.5 m) control cable of the K857. See the
instructions (S19103) included with the kit.
FLUX SYSTEM COMPONENTS
The flux system is available to permit the LN-742 to be
used for submerged arc welding. It is comprised of the
components described below.
K58 MAGNETIC SEPARATOR
The K58 is a permanent magnet type separator
designed to fit the top of the standard fill funnel of the
continuous flux feeding system.
The purpose of the separator is to remove magnetic
materials such as mill scale and any other extraneous
magnetic materials which may have been recovered
along with the flux to be processed.
It is important to remove these magnetic particles from
the flux which is to be used in the continuous flux
feeding systems. If the magnetic material is not
removed it will gather around the nozzle of the gun and
impede or shut off the flux flow when making relatively
long welds or welding continuously. The magnetic
particles can also cause porosity in the weld.
K310 FLUX SCREEN
The unit was designed to fit the top of either the
standard fill funnel or a K58 magnetic separator. The
unit has a steel screen with 0.065 to 0.075 in. openings
and an air vibrator attached to the frame. The vibrator
can be used with air line pressures ranging from 20
through 100 psi.
For ease of handling, the user should connect the
incoming air line to the 1/8 in. pipe elbow with the aid
of a quick disconnect type air coupling.
It is very important that reclaimed flux to be used in the
continuous flux feeding system be passed through the
K310 screen or its equivalent.
C-3
ACCESSORIES
C-3
LN-742 & LN-742H
