A-2

INSTALLATION

A-2

GENERAL DESCRIPTION

DESIGN FEATURES

The Classic® III and Classic® III D are heavy duty, engine driven, DC arc welding power sources capable of providing constant current output for stick welding or DC TIG welding. These welders are wound with all copper coils, rated at 300 amps/32 Volts, and provide other Classic features such as improved door latches and stainless hinges. With the addition of the optional

K623-1 Wire Feed Module, the Classic III or Classic

IIID will provide constant voltage output for running the LN-7, LN-23P, or LN-25 wire feeders. (The Wire Feed Module is factory installed on the K1428-3 and K1433-2).

The Classic III D has Diesel Engine Protection. In the event of sudden low oil pressure or high coolant tem- perature, the engine immediately shuts down. The Classic III & Classic III D have a current range of 40-

350 DC amps with output ratings as follows:

RATED OUTPUT

DUTY CYCLE

 

 

 

225A

@ 29V

100%

300A

@

32V

50%

350A

@

34V

30%

These units are also capable of providing 3 kVA of 115/230 volts of 60 cycle AC auxiliary power.

The Classic III unit uses the Continental TM27® industrial water-cooled Gasoline engine, while the

Classic III D uses the Continental TMD27® industrial water-cooled Diesel engine.

Control Panel

Both the engine and the welder controls are located on one recessed panel at the exciter end of the machine. The welder controls consist of a five step “Current Range Selector” switch and a “Fine Current Adjustment” rheostat. Each welder is equipped with a “Start” button, an “Ignition” switch and an “Idler” con- trol switch. The diesel version comes with a “Glow Plug” feature for easier cold weather starting.

The control panels also contain an engine tempera- ture gauge (diesel only), a battery charging ammeter, an oil pressure gauge (oil pressure light on the gaso- line version), two three prong grounding type recepta- cles and circuit breakers for auxiliary power, and a choke control (gasoline version only).

All Copper Windings - For long life and dependable operation.

Engine Idler - Both the Classic III & III D are equipped with an electronic automatic engine idler. It automatically increases and decreases engine speed when starting and stopping welding or using aux- iliary power. A built-in time delay permits changing electrodes before the engine slows to its low idle speed. The “Idler” control switch on the panel locks the idler in full speed position when desired.

Auxiliary Power - 3.0 kVA of nominal 115/230V, 60Hz, AC. Output voltage is maintained within ± 10% at all loads up to rated capacity. (See Optional Features for Power Plug Kits.)

Welder Enclosure - The complete welders are rubber mounted on a rugged steel “C” channel base.

The output terminals are placed at the side of the machines so that they are protected by the door. The output terminals are labeled (+) and (-).

Cranking System - A 12 volt electric starter is stan- dard.

Air Cleaner - Heavy duty two stage dry type. Muffler - A muffler and rain cap are standard.

Engine Hour Meter - A meter to record hours of oper- ation.

Diesel Engine Protection - The system shuts the diesel engine down in the event of sudden low oil pressure or high coolant temperature.

Carburetor Deicing Kit

Classic III Welders are equipped with a kit, that prevents carburetor icing when outside temperature is 60°F/15.5°C or lower.

CLASSIC III AND IIID

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Lincoln Electric 10033, 10061, 10072, 10156 manual General Description, Control Panel