Lincoln Electric IM955 CLASSIC 300 D PERKINS - Manual (Page 9)

A-2 INSTALLATION
CLASSIC ® 300D PERKINS
A-2
GENERAL DESCRIPTION
The Classic ® 300D Perkins is a heavy duty, engine dri-
ven, DC arc welding power source, capable of provid-
ing constant current output 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 optional
K623-1 Wire Feed Module™, the Classic ® 300D
Perkins will provide constant voltage output for run-
ning 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 Classic ® 300D Perkins has an Electronic Engine
Protection System. In the event of sudden low oil
pressure or high coolant temperature, the engine
immediately shuts down. The Classic
® 300D Perkins
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 Classic ® 300D Perkins uses the Perkins 404D-22
industrial water-cooled diesel engine.
DESIGN FEATURES
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. The 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 control panel also contains an engine tempera-
ture gauge, a battery charging ammeter, an oil pres-
sure gauge, for auxiliary power one three prong
grounding type receptacles, one GFCI and circuit
breakers for protection.
All Copper Windings - For long life and dependable
operation.
Engine Idler - The Classic ® 300D Perkins is
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 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 - One UL approved 115V ground fault circuit
interrupter duplex type receptacle is standard. See the
MAINTENANCE section for detailed information on
testing and resetting the GFCI.
Welder Enclosure - The complete welder is 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 stainless steel exhaust outlet
elbow are standard.
Engine Hour Meter - A meter to record hours of oper-
ation.
Engine Protection - The system shuts the engine
down in the event of sudden low oil pressure or high
coolant temperature. 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
standard.
Remote Control - The Remote / Local Switch and
Receptacle are standard.
250A @ 30V
300A @ 32V 100%
60%
RATED OUTPUT DUTY CYCLE