A-7

A-7

INSTALLATION

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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.

WARNING

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.

CAUTION

Never bypass the circuit breakers. Without overload protection, the Classic II could overheat and/or cause damage to the equipment being used.

FIGURE A.2 - GROUND STUD LOCATION

1

1. Ground Stud

CLASSIC II

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Lincoln Electric SVM125-A Machine Grounding, Auxiliary Power RECEPTACLES, PLUGS, and HAND-HELD Equipment, Circuit Breakers

SVM125-A specifications

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