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MACHINE GROUNDING
Because the Classic II creates its own
power from its diesel-engine driven gener-
ator, you do not need to connect the
machine frame to an earth ground.
However, for best protection against elec-
trical shock, connect a heavy gauge wire (#8 AWG or
larger) from the ground stud located on the welding
generator frame foot. (See Figure A.2) to a suitable
earth ground such as a metal pipe driven into the
ground. The US National Electrical Code lists a number
of alternate means of grounding electrical equipment.
Do not ground the machine to a pipe that carries
explosive or combustible material.
Some state, local, or other codes or unusual operating
circumstances may require the machine frame to be
grounded. It is recommended that you determine the
extent to which such requirements may apply to your
particular situation and follow them explicitly.
When the Classic II is mounted on a truck or a trailer,
the machine generator ground stud MUST be secure-
ly connected to the metal frame of the vehicle. See
Figure A.2. The ground stud is marked with the ground
symbol.
For further protection against electric shock, any elec-
trical equipment connected to the generator recepta-
cles must use a three-blade, grounded type plug or an
Underwriter's Laboratories (UL) approved double insu-
lation system with a two-blade plug. Lincoln offers an
accessory plug kit that has the right type of plugs. See
the
Accessories
section of this manual for details.
If you need ground fault protection for hand-held equip-
ment, refer to the
Accessories
section of this manual
for the GFCI Receptacle kit.
AUXILIARY POWER RECEPTACLES,
PLUGS, AND HAND-HELD EQUIPMENT
The AC auxiliary power, supplied as a standard, has a
rating of 3.0 kVA of 115/230V AC (60 hertz).
With the 3.0 kVA, 115/230V AC auxiliary power, one
115V duplex and one 230V grounding type receptacle
are provided. The circuit is protected with circuit break-
ers.
The rating of 3.0 kVA permits a maximum continuous
current of 13 amps to be drawn from the 230 volt
duplex receptacle. Or a total of 26 amps can be drawn
from the 115 volt duplex receptacle. The 115 volt
duplex receptacle has a configuration which permits 15
amps on CSA machines and 20 amps on non-CSA
machines. The total combined load of all receptacles
is not to exceed 3.0 kVA.
CIRCUIT BREAKERS
Classic II welders are equipped with
circuit breakers on the 115 and the
230 volt receptacles for overload pro-
tection. Under high heat a breaker
may tend to trip at lower loads than it would normally.
Operation with high ambient temperatures may cause
the breakers to trip at lower than normal loads.
Never bypass the circuit breakers. Without overload
protection, the Classic II could overheat and/or cause
damage to the equipment being used.
INSTALLATION
A-7 A-7
CLASSIC II
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WARNING
CAUTION
1
FIGURE A.2 - GROUND STUD LOCATION
1. Ground Stud