Lincoln Electric IM663 RED-D-ARC D300K 3+3 - Manual (Page 9)

A-2 INSTALLATION
D300K 3+3
A-2
GENERAL DESCRIPTION
The D300K 3+3 is a heavy duty, engine driven, DC
arc welding power source, capable of providing con-
stant current output for stick welding or DC TIG weld-
ing. This welder is wound with all copper coils, rated
at 250 amps / 40 Volts, and provides other features
such as improved door latches and stainless hinges.
The D300K 3+3 has Diesel Engine Protection. In the
event of sudden low oil pressure or high coolant tem-
perature, the engine immediately shuts down. The
D300K 3+3 has a current range of 40-325 DC amps.
This unit is also capable of providing 3 kVA of 120
volts of 60 hertz AC auxiliary power.
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” and “Glow Plug” switch for easier cold weather
starting and a “Stop” (pull knob).
The control panel for Code 10567 contains a battery
charging ammeter, one three prong duplex grounding
type receptacle and two circuit breakers for auxiliary
power.
The control panel for Codes 10956, 11214, 11488,
11549 and 12186 contains a battery charging amme-
ter, GFCI receptacle and one circuit breaker for auxil-
iary power. If a GFCI receptacle is tripped, See the
MAINTENANCE section for detailed information on
testing and resetting the GFCI receptacle.
All Copper Windings - For long life and dependable
operation.
Auxiliary Power - 3.0 kVA of nominal 120V, 60Hz,
AC. Output voltage is maintained within ± 10% at all
loads up to rated capacity.
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 exhaust outlet elbow are stan-
dard.
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.
Fuel Consumption - Fuel consumption has been
optimized by means of careful design of the combus-
tion chamber, fuel feed and injection system and
cross-flow cylinder heads. In order to enhance
longevity of the engine, the engine turns at a constant
1800 RPM and no engine idler is used.
As a result, there is no waiting time for the welder to
achieve operating speed when striking an arc.
Fuel consumption figures at average operating loads
are as follows:
Tank Capacity: 15 gallons, (57 L) Metal Tank or
16 gallons, (60.6L) Plastic Tank.
Fuel Consumption: 0.44 gallons/hr, (1.65 L/hr)
Operating Interval: 35 hours per tank
250A @ 40V 60%
RATED OUTPUT DUTY CYCLE