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If installing the arm on a Mobiflex 200-M,
refer to the Mobiflex 200-M manual for installation
information.
If installing the arm on a Mobiflex 400-MS,
refer to the Mobiflex 400-MS manual for installation
information.
If installing the arm with an SF2400 Fan,
refer to the SF2400 Fan manual for installation
information
This manual covers installation of a:
K1655-1 LFA 3.1, 10 ft. Arm or
K1655-2 LFA 4.1, 13 ft. Arm
on a K1657-1 Wall Mounting Bracket
If installing the arm on an Extension Crane
without a K1656-1 SF2400 Fan, refer to the Extension
Crane manual for installation information.
The installer is responsible for following local safety
codes and regulations.
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Before drilling, verify locations of existing gas, water,
or electrical conduits.
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K1655-1 LFA 3.1 or K1655-2 LFA 4.1 Arm Includes
:
• Assembled arm pieces
• Flexible hose, (2) 8” Rubber seals for hood hinge
• (2) 8” Rubber seals for base 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
K1657-1 Wall Mounting Bracket Includes:
• (2) Bracket pieces
• Hanging Adapter
• Spring Bracket
• Flexible Hose, (2) 8” Rubber bands for arm base
• (2) Bolts, M8x1.25, 45mm long (about 1.75”)
• (4) Bolts, M8x1.25, 75mm long (about 3.00”)
• (6) Nuts, M8 self-locking
• (6) Washers, M8
A-2
INSTALLATION
LFA 3.1 & 4.1 FUME EXTRACTION ARMS
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 with covers open or fil-
ter removed.
• Keep away from moving parts.
------------------------------------------------------------------------
Only qualified personnel should install, use or service
this equipment.
GENERAL DESCRIPTION
Lincoln’s LFA extraction arms are spring-balanced for
easy positioning. They are intended for use with a
low-vacuum, high-volume extraction fan. The LFA
arms are commonly installed on a Mobiflex 200-M
mobile base unit with filter or with an SF2400 Wall-
Mounted Extraction Fan, with or without a Statiflex
200-M Wall-Mounted Filter Unit. Extension Cranes are
available in 7 ft. and 14 ft. lengths, with an optional
Feeder Hanging Rail. Lamp Kits available for both the
Mobiflex and Wall-Mounted Systems provide hood-
mounted switches for the light and connected fan sys-
tem. An Automatic Start/Stop Arc Sensor can be
installed with either lamp kit to automatically start the
connected extraction system (Mobiflex 200-M or
SF2400 Fan) when the sensor detects a welding arc.
Installation procedures for the K1655-1 and K1655-2,
LFA 3.1 and 4.1 Extraction Arms have been com-
bined; the difference between the arms is the length of
the arm sections, which does not affect installation
procedures.
WARNING
WARNING