Lincoln Electric Mobiflex 400-MS - Manual (Page 9)

When the pressure drop across the filter reaches a set
point due to increased fume on the outside of the fil-
ter, a solenoid releases air from a compressed air
resevoir tank mounted inside the filter cartridge. This
air goes through several holes in the cleaning tube,
cleaning one section of the filter with multiple air jets.
The cleaning tube then shifts to the next section of the
filter until the pressure drop again reaches the set
point, triggering the next cleaning pulse.
A manual cleaning cycle is initiated by pressing the
Reset/Start button on the face of the machine. The
system pauses between sections of the filter, allowing
the air tank to repressurize. The Mobiflex 400-MS
requires 90 - 100 psi of clean, dry compressed air to
function properly.
The Mobiflex 400-MS can be used with either a
10 ft. or 13 ft. extraction arm. The hood of the arm can
be retrofitted with a 24VAC lamp kit with remote,
hood-mounted switch for the blower. A lamp kit is
available that includes an automatic start/stop arc
sensor. This device automatically switches the
Mobiflex fan on when it senses a welding arc, and off
when it does not sense the arc with a 20 second
delay.
This installation section covers any of the following
accessories as installed on the K1741-1
Mobiflex 400-MS:
K1655-1 LFA 3.1, 10 ft. Arm
K1655-2 LFA 4.1, 13 ft. Arm
K1706-1 Work Lamp
K1706-2 Work Lamp with Arc Sensor
The K1741-1 Mobiflex 400-MS includes:
• Mobile base unit
• Flexible hose for connecting the extraction arm
• two each, 8” rubber seals
The LFA 3.1 or 4.1 extraction arm includes:
• Assembled arm, 2 sections
• one Flexible hose,
• Two each (2), 8” Rubber seals for hood hinge
• Hood assembly
• (2) Bolts, M8x1.25, 45mm long (about 1.75”)
• (2) Nuts, M8 self-locking
• Hose running guard
• Clamping pin for red plastic ring
• Metal rotating hinge
• Red plastic ring
A-2 INSTALLATION
MOBIFLEX 400-MS
A-2
Read this entire installation section before you
start installation.
SAFETY PRECAUTIONS
Do not attempt to use this equipment until you have
thoroughly read all installation, operating and mainte-
nance information supplied with your equipment. They
include important safety precautions and detailed
operating and maintenance instructions.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such
as internal wiring.
• Turn the input power off at the fuse box
before working on this equipment.
• Have a qualified person install and ser-
vice this equipment.
------------------------------------------------------------------------
MOVING PARTS can injure.
• Do not operate without extraction arm
installed.
• Keep away from moving parts.
------------------------------------------------------------------------
Only qualified personnel should install, use or service
this equipment.
GENERAL DESCRIPTION
The Mobiflex 400-MS is a self-contained system for
the removal and filtration of welding fume particles
and other particulate. It is a low vacuum, high volume
system that uses a spring balanced, articulated arm to
provide localized ventilation for welding or other appli-
cations. With large rear wheels and front casters, it is
suitable for use on mobile fume sources. A wheel
locking mechanism provides stability while positioning
the arm. The Mobiflex 400-MS has an 18 ft. (6 m)
input cord with a standard 115VAC, 1ph, 60Hz plug.
The filter system features a spark arrester and a
paper filter cartridge with a filtering efficiency of
99.8%.
The Mobiflex 400-MS uses an automatic filter cleaning
system to maintain the filter and reduce maintenance
costs. Fume collected on the outside of the filter is
knocked off by a blast of compressed air from the
cleaning system. Fume then drops into the dust col-
lection tray at the bottom of the unit.
WARNING