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PRE-OPERATION SERVICE
READ the engine operating and maintenance instruc-
tions supplied with this machine.
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Oil
This unit is supplied from the factory with the engine
crankcase filled with a high quality SAE 10W/30 oil.
This oil should be acceptable for most typical ambient
temperatures. Consult the engine operation manual
for specific engine manufacturer’s recommendations.
Upon receipt of the welder, check the engine dipstick
to be sure the oil is at the “full” mark. DO NOT overfill.
Fuel
Fill the fuel tank with the grade of fuel recommended
in the Engine Operator’s manual. Make sure the fuel
valves on the sediment bowl and the water separator
are in the open positions.
Cooling System
The radiator has been filled at the factory with a 50-50
mixture of ethylene glycol antifreeze and water.
Check the radiator level and add a 50-50 solution as
needed (see engine manual or antifreeze container for
alternate antifreeze recommendations).
CAUTION
A-4
INSTALLATION
CLASSIC 300D
A-4
TRAILER (See Optional Features)
If the user adapts a non-Lincoln trailer, he must
assume responsibility that the method of attachment
and usage does not result in a safety hazard nor dam-
age the welding equipment. Some of the factors to be
considered are as follows:
1. Design capacity of trailer vs. weight of Lincoln
equipment and likely additional attachments.
2. Proper support of, and attachment to, the base of
the welding equipment so there will be no undue
stress to the framework.
3. Proper placement of the equipment on the trailer to
ensure stability side to side and front to back when
being moved and when standing by itself while being
operated or serviced.
4. Typical conditions of use, i.e., travel speed, rough-
ness of surface on which the trailer will be operated;
environmental conditions, likely maintenance.
5. Conformance with federal, state and local laws.
(1)
(1)
Consult your federal, state and local laws regarding specific
requirements for use on public highways.
VEHICLE MOUNTING
Improperly mounted concentrated loads may cause
unstable vehicle handling and tires or other compo-
nents to fail.
• Only transport this equipment on serviceable vehi-
cles which are rated and designed for such loads.
• Distribute, balance and secure loads so vehicle is
stable under conditions of use.
• Do not exceed maximum rated loads for compo-
nents such as suspension, axles and tires.
• Mount equipment base to metal bed or frame of
vehicle.
• Follow vehicle manufacturer’s instruction.
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POLARITY CONTROL AND CABLE SIZES
With the engine off, route the electrode and work
cables through the strain relief bracket on the base
and connect to the studs located below the fuel tank
mounting rail. (See size recommendations below.)
For positive polarity, connect the electrode cable to
the terminal marked “+”. For Negative polarity, con-
nect the electrode cable to the “-” stud. These con-
nections should be checked periodically and tightened
if necessary.
When welding at a considerable distance from the
welder, be sure you use ample sized welding cables.
RECOMMENDED COPPER CABLE SIZES
Cables Sizes for Combined Length
of Electrode Plus Work Cable
Amps Duty Cycle Up to 200ft.(61m) 200 to 250ft.
(61 to 76m)
250 100% 1 1/0
300 60% 1/0 2/0
• Stop engine while fueling.
• Do not smoke when fueling.
• Keep sparks and flame away
from tank.
• Do not leave unattended while
fueling.
• Wipe up spilled fuel and allow
fumes to clear before starting
engine.
• Do not overfill tank, fuel
expansion may cause over-
flow.
DIESEL FUEL ONLY
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WARNING
DIESEL FUEL
can cause fire.