English English
5
CYLINDER MAY EXPLODE IF DAMAGED: Use only compressed gas cylinders containing the
correct shielding gas for the process used and properly operating regulators designed for the gas and
pressure used. Always keep cylinders in an upright position securely chained to a fixed support. Do
not move or transport gas cylinders with the protection cap removed. Do not allow the electrode,
electrode holder, work clamp or any other electrically live part to touch a gas cylinder. Gas cylinders
must be located away from areas where they may be subjected to physical damage or the welding
process including sparks and heat sources.
NOISE APPEARES DURING WELDING CAN BE HARMFUL: Welding arc can cause noise with high
level of 85dB for 8-hour week day. Welders operating welding machines are obligated to wear the
proper ear protectors /appendix No. 2 for the Decree of the Secretary of Labor and Social Policy from
17.06 1998 – Dz.U. No. 79 pos. 513/. According to the Decree the Secretary of Health and Social
Welfare from 09.07.1996 /Dz.U. No. 68 pos. 194/, employers are obligated to carry examinations and
measurements of health harmful factors.
MOVING PARTS ARE DANGEROUS: There are moving mechanical parts in this machine, which
can cause serious injury. Keep your hands, body and clothing away from those parts during machine
starting, operating and servicing.
EQUIPMENT WEIGHT OVER 30kg: Move this equipment with care and with the help of another
person. Lifting may be dangerous for your physical health.
The manufacturer reserves the right to make changes and/or improvements in design without upgrade at the same time
the operator’s manual.
Installation and Operator Instructions
Read this entire section before installation or operation
of the machine.
Select Suitable Location
Location and Ventilation for Cooling
Place the welder where clean cooling air can freely
circulate in through the rear louvers and out through the
case sides. Dirt, dust, or any foreign material that can be
drawn into the welder should be kept at a minimum.
Failure to observe these precautions can result in
excessive operating temperatures and nuisance
shutdowns.
Lifting
The FLEXTEC™ 650 has 2 lifting eyelets and 2 handles
that can be used to lift the machine. Both handles or
both eyelets should be used when lifting the FLEXTEC™
650.
Both handles should be used when lifting the FLEX-
TEC™ 450 CE
When using a crane or overhead device to lift using the
handles, a lifting strap should be connected to both
handles. Do not attempt to lift the FLEXTEC™ 650&450
with accessories attached to it
Stacking
The FLEXTEC™ 650&450 cannot be stacked.
Environmental Limatations
The FLEXTEC™ 650&450 are IP23 rated for use in an
outdoor environment. The FLEXTEC™ 650&450 should
not be subjected to falling water during use nor should
any parts of it be submerged in water. Doing so may
cause improper operation as well as pose a safety
hazard. The best practice is to keep the machine in a
dry, sheltered area.
WARNING
Do not mount the FLEXTEC™ 650&450 over
combustible surfaces. Where there is a combustible
surface directly under stationary or fixed electrical
equipment, that surface shall be covered with a steel
plate at least 1.6mm thick, which shall extend not less
than 150mm beyond the equipment on all sides.
Input and Grounding Connections
Machine Grounding
The frame of the welder must be grounded. A
ground terminal marked with the symbol
shown is located inside the reconnect/input
connection area for this purpose. See your
local and national electrical codes for proper grounding
methods.
Duty Cycle
The FLEXTEC™ is capable of welding at a 100% duty
cycle (continuous welding) at 650 (for Flextec 650) amps
rated output, and at 450 (for Flextec 450) amps rated
output. The 60% duty cycle rating is 750 amps (for
Flextec 650) and 38volts (for Flextec 450) (based off of a
ten minute cycle – 6 minutes on time and 4 minutes off
time). The maximum output of the Flextec 650 is 815
amps, and for Flextec 450 is 500 amps.
