Lincoln Electric SVM194-A service manual General Description, A4.3

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A4.3			INSTALLATION			A4.3
GENERAL DESCRIPTION				All Copper Windings - For long life and dependable
				operation.		300D Perkins is
The Classic® 300D Perkins is a heavy duty, engine dri-				Engine	Idler - The Classic®
ven, DC arc welding power source, capable of provid-				equipped with an electronic automatic engine idler. It
ing constant current output for stick welding or DC TIG				automatically increases and decreases engine speed
welding. This welder is wound with all copper coils,				when starting and stopping welding or using auxil-
rated at 300 amps/32 Volts, and provides other				iary power. A built-in time delay permits changing
Classic® features such as improved door latches and				electrodes before the engine slows to its low idle
stainless hinges. With the addition of the optional				speed. The “Idler” control switch on the panel locks the
K623-1 Wire Feed Module™, the Classic® 300D				idler in high idle position when desired.
Perkins will provide constant voltage output for running
the LN-7, LN-23P, or LN-25 wire feeders.			(The Wire	Auxiliary Power - 3.0 KVA of nominal 115/230V, 60Hz,
Feed Module is factory installed on the K1643-8). The				AC. Output voltage is maintained within ± 10% at all
optional K924-5 Remote Control Kit, provides a remote				loads up to rated capacity. (See		Optional Features
control rheostat for remote fine current and open circuit				Section C for Power Plug Kit.)
voltage adjustment. See Section C for description.				GFCI Receptacle - One UL approved 115V ground
The Classic® 300D Perkins has an Electronic Engine				fault circuit interrupter duplex type receptacle is stan-
				dard. See the MAINTENANCE section for detailed
Protection System. In the event of sudden low oil pres-				information on testing and resetting the GFCI recepta-
sure or high coolant temperature, the engine immedi-				cle.
ately shuts down. The Classic® 300D Perkins has a				Welder Enclosure - The complete welder is rubber
current range of 40-350 DC amps with output ratings				mounted on a rugged steel “C” channel base.
as follows:				The output terminals are placed at the side of the
These units are also capable of providing 3 KVA of				machines so that they are protected by the door. The
				output terminals are labeled (+) and (-).
RATED OUTPUT		DUTY CYCLE		Cranking System - A 12 volt electric starter is stan-
250A @ 30V		100%		dard.
300A @ 32V		60%		Air Cleaner - Heavy duty two stage dry type.
				Muffler	- A muffler and stainless steel exhaust outlet
115/230 volts of 60 cycle AC auxiliary power.
				elbow are standard.
The Classic® 300D Perkins uses the Perkins 404D-22				Engine Hour Meter - A meter to record hours of oper-
industrial water-cooled diesel engine.				ation.
DESIGN FEATURES				Engine Protection - The system shuts the engine
Control Panel				down in the event of sudden low oil pressure or high
				coolant temperature. A warning light on the control
Both the engine and the welder controls are located on				panel will indicate such a fault. To reset the engine for
one recessed panel at the exciter end of the machine.				restarting, turn the ignition switch off then on.
The welder controls consist of a five step “Current				Oil Drain Valve - A ball valve, hose and clamp are
Range Selector” switch and a “Fine Current
Adjustment” rheostat.	The welder is equipped with a			standard.
“Start” button, an “Ignition” switch, an “Idler” control				Remote Control - The Remote / Local Switch and
switch, and a “Glow Plug” button for easier cold weath-
er starting.				Receptacle are standard.
The control panel also contains an engine temperature
gauge, a battery charging ammeter, an oil pressure
gauge, for auxiliary power one three prong grounding
type receptacles, one GFCI receptacle and circuit
breakers for protection.

CLASSIC® 300D & 300G