English
English
8
Set the "ARC CONTROL" knob to "0" initially and
adjust to suit.
Set the "IDLE" switch to the "AUTO" position. When
not welding, the RANGER® 305D (CE) engine will
be at the low idle speed. If you are using an LN-25
with an internal contactor, the electrode is not
energized until the gun trigger is closed.
When the gun trigger is closed, the current sensing
circuit will cause the RANGER 305D (CE) engine to
go to the high idle speed, the wire will begin to feed
and the welding process started. When welding is
stopped, the engine will revert to low idle speed
after approximately 12 seconds unless welding is
resumed.
WARNING
If you are using an LN-25 without an internal contactor,
the electrode will be energized when the RANGER®
305D (CE) is started.
Connection of the LN-742 and Cobramatic to
the RANGER® 305D (CE)
Shut
the
welder
off.
Connect per instructions on the appropriate
connection diagram in Section below.
For Auxiliary Power
Start the engine and set the IDLER control switch to the
desired operating mode. Full power is available
regardless of the welding control settings providing no
welding current is being drawn.
Engine Operation
Before Starting the Engine:
Be sure the machine is on a level surface.
Open top & side engine doors and remove the
engine oil dipstick and wipe it with a clean cloth.
Reinsert the dipstick and check the level on the
dipstick.
Add oil (if necessary) to bring the level up to the full
mark. Do not overfill. Close engine door.
Check radiator for proper coolant level. (Fill if
necessary).
See
Engine
Owner
ʼ
s Manual for specific oil and
coolant recommendations.
Add Fuel
WARNING
DIESEL FUEL can cause fire.
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 exapnsion may cause
overflow.
DIESEL FUEL ONLY.
Remove the fuel tank cap.
Fill the tank approximately 4 inches (100mm) from
the top of the filler neck to allow for fuel expansion
(observe the fuel gauge while filling). DO NOT FILL
THE TANK TO THE POINT OF OVERFLOW.
Replace the fuel cap and tighten securely.
See
Engine
Owner
ʼ
s Manual for specific fuel
recommendations.
Break-in Period
Any engine will use a small amount of oil during its
“break-in” period. For the diesel engine on the
RANGER® 305D (CE), break-in is about 50 running
hours.
Check the oil every four hours during break-in. Change
the oil after the first 50 hours of operation, every 100
hours thereafter. Change the oil filter at the second oil
change.
WARNING
During break-in, subject the RANGER® 305D (CE) to
moderate loads. Avoid long periods running at idle.
Before stopping the engine, remove all loads and allow
the engine to cool several minutes.
Controls and Operational Features
Welding Controls
Figure 1
1. Output Control: The OUTPUT dial is used to preset
the output voltage or current as displayed on the
digital meters for the four welding modes. When in
the CC-STICK, or CV-WIRE modes and when a
remote control is connected to the 6-Pin or 14-Pin
Connector, the auto-sensing circuit automatically
switches the OUTPUT CONTROL from control at
the welder to the remote control.
When in the DOWNHILL PIPE mode and when a
REMOTE CONTROL is connected to the 6-Pin or
14-Pin Connector, the OUTPUT CONTROL is used
to set the maximum current range of the OUTPUT
CONTROL of the REMOTE.
Example:
When the OUTPUT CONTROL on the welder is set
to 200 amps the current range on the REMOTE
CONTROL will be 40-200 amps rather than the full
40-300 amps. Any current range that is less than
the full range provides finer current resolution for
more fine tuning of the output.
