Lincoln Electric SAE-300 manual General Description, Design FEATuRES, Receptacle

A-2 INSTALLATION A-2

GENERAL DESCRIPTION

The SAE-300® is a heavy duty, engine driven, DC arc weld- ing power source, capable of providing constant current out- put for stick welding or DC TIG welding. This welder is wound with all copper coils, rated at 300 amps/32 Volts, and provides other Classic® features such as improved door latches and stainless hinges. With the addition of the option-

al K623-1 Wire Feed Module™, the SAE-300® 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 K1643-8). The optional K924-5 Remote Control Kit, provides a remote control rheostat for remote fine current and open circuit voltage adjustment. See Section C for description.

The SAE-300® has an Electronic Engine Protection System. In the event of sudden low oil pressure or high coolant tem- perature, the engine immediately shuts down. The SAE- 300® has a current range of 40-350 DC amps with output ratings as follows:

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

The SAE-300® uses the Perkins 404D-22 industrial water- cooled diesel engine.

RATED OuTPuT			DuTY CYCLE
250A	@	30V	100%
300A	@	32V	60%

DESIGN FEATuRES

Control Panel

The welder controls consist of a Reactor and a “Fine Current Adjustment” rheostat located on the upper control panel at the exciter end of the machine. The lower control panel welder is equipped with a “Start” button, an “Ignition” switch, an “Idler” control switch, and a “Glow Plug” button for easier cold weather starting.

The lower control panel also contains an engine tempera- ture gauge, a battery charging ammeter, an oil pressure gauge, for auxiliary power consists of one 20 amp, 120VAC (5-20R) duplex receptacle with GFCI protection and one 15 amp, 250VAC (6-15R) receptacle, protected by 2 pole, 15 Amp breaker.

All Copper Windings - For long life and dependable operation.

Engine Idler - The SAE-300® is equipped with an electron- ic automatic engine idler. It automatically increases and decreases engine speed when starting and stopping welding or using auxiliary 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 high idle 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 Section C for Power Plug Kit.)

GFCI blank Face Receptacle - Protects the 20 amp, 120V duplex receptacle. See the Maintenance Section for detailed information on testing and resetting of the GFCI.

120 V DuPLEx RECEPTACLE AND GFCI bLANK FACE

RECEPTACLE

A GFCI protects the 120V auxiliary power receptacle.

A GFCI (Ground Fault Circuit Interrupter) is a device to protect against electric shock should a piece of defective equipment connected to it develop a ground fault. If this situation should occur, the GFCI will trip, removing voltage from the output of the receptacle. If a GFCI is tripped see the MAINTENANCE section for detailed information on testing and resetting it. A GFCI should be properly tested at least once every month.

The 120 V auxiliary power receptacle should only be used with three wire grounded type plugs or approved double insulated tools with two wire plugs. The current rating of any plug used with the system must be at least equal to the current capacity of the associated receptacle.

Welder Enclosure - The complete welder is rubber mount- ed 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 standard.

Air Cleaner - Heavy duty two stage dry type.

Muffler - A muffler and stainless steel exhaust outlet elbow are standard.

Engine hour Meter - A meter to record hours of operation.

Engine Protection - The system shuts the engine down in the event of sudden low oil pressure or high coolant temper- ature. A warning light on the control panel will indicate such a fault. To reset the engine for restarting, turn the ignition switch off then on.

Oil Drain Valve - A ball valve, hose and clamp are stan- dard.

Remote Control - The Remote / Local Switch and Receptacle are standard.

SAE-300®