Lincoln Electric IM639 RED-D-ARC VIPER - Manual (Page 10)

A-2 INSTALLATION A-2
Read entire Installation Section before installing the
VIPER.
SAFETY PRECAUTIONS
ELECTRIC SHOCK CAN KILL.
• Only qualified personnel
should install this machine.
• Turn the input power OFF
at the disconnect switch or
fuse box and discharge input
capacitors before working
inside the equipment.
• Do not touch electrically hot parts.
• Always connect the VIPER ground-
ing terminal (located on the side of the
Case Back Assembly) to a good electrical
earth ground.
• Turn the VIPER Power Switch OFF
when connecting power cord to input
power.
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SELECT PROPER LOCATION
Place the VIPER where clean cool air can freely circu-
late in through the rear louvers and out through the
front/bottom opening. Dirt, dust or any foreign material
that can be drawn into the machine should be kept at
a minimum. Failure to observe these precautions can
result in excessive operating temperatures and nui-
sance shutdown of the machine.
A source of clean, dry air or nitrogen must be supplied
to the VIPER. Oil in the air is a severe problem and
must be avoided. The supply pressure must be
between 80 and 150 psi. The flow rate is approximate-
ly 6.0 cfm (170 l/min.). Failure to observe these pre-
cautions could result in excessive operating tempera-
tures or damage to the torch.
STACKING
The VIPER cannot be stacked.
LIFTING AND MOVING
Either the front or rear handles or both may be used to
lift or move the machine.
DO NOT use the pull handle on the optional undercar-
riage, if installed, to lift the machine. This handle is not
designed to support the full weight of the machine and
using it to lift the machine could cause personal injury
or damage to the machine.
TILTING
The VIPER must be placed on a stable, level surface
so it will not topple over.
HIGH FREQUENCY INTERFERENCE
PROTECTION
The VIPER employs a touch start mechanism for arc
initiation which eliminates high frequency emissions
from the machine as compared with spark gap and
solid state type high frequency generators. Keep in
mind, though, that these machines may be used in an
environment where other high frequency generating
machines are operating. By taking the following
steps, high frequency interference into the VIPER can
be minimized
(1) Make sure the power supply chassis is connected
to a good earth ground. The work terminal ground
does NOT ground the machine frame.
(2) Keep the work ground clamp isolated from other
work clamps that have high frequency.
(3) If the ground clamp cannot be isolated, then keep
the clamp as far as possible from other work
clamp connections.
(4) When the machine is enclosed in a metal building,
several good earth driven electrical grounds
around the periphery of the building are recom-
mended.
Failure to observe these recommended installation
procedures may cause improper function of the
VIPER or possibly even damage to the control system
or power supply components.
VIPER
WARNING