Lincoln Electric IM744 VANTAGE 575 - Manual (Page 24)

B-6 OPERATION B-6
Vantage 575
BREAK-IN PERIOD
The engine used to supply power for your welder is a heavy duty,
industrial engine. It is designed and built for rugged use. It is very
normal for any engine to use small quantities of oil until the break-
in is accomplished. Check the oil level twice a day during the
break-in period. In general this takes 50 to 100 hours of
operation.
IMPORTANT
IN ORDER TO ACCOMPLISH THIS BREAK-IN, THE UNIT
SHOULD BE SUBJECTED TO HEAVY LOADS, WITHIN THE
RATING OF THE MACHINE. AVOID LONG IDLE RUNNING
PERIODS.
TYPICAL FUEL CONSUMPTION
Refer to Table B.2 for typical fuel consumption of the Vantage
Engine for various operating scenarios.
WELDER OPERATION
DUTY CYCLE
Duty Cycle is the the ratio of the uninterrupted on-load duration to
10 minutes. The total time period of one complete on-load and no-
load cycle is 10 minutes. For example, in the case of a 60% duty
cycle, load is applied continuously for 6 minutes followed by a no-
load period of 4 minutes.
STICK WELDING MODE
The Vantage can be used with a broad range of DC stick
electrodes.
The MODE switch provides two stick welding settings as follows:
CC-STICK MODE
The CC-STICK position of the MODE switch is designed for
horizontal, vertical-up and over head welding with all types of
electrodes, especially low hydrogen. The OUTPUT CONTROL
knob adjusts the full output range for stick welding.
The ARC CONTROL knob sets the short circuit (arc-force) current
during stick welding. Increasing the number from -10 (Soft) to +10
(Crisp) increases the short circuit current and prevents sticking of
the electrode to the plate while welding. This can also increase
spatter. It is recommended that the ARC CONTROL be set to the
minimum number without electrode sticking. Start with the knob
set at 0.
DOWNHILL PIPE MODE
This slope controlled setting is intended for “out-of-position” and
“down hill” pipe welding where the operator would like to control
the current level by changing the arc length. The OUTPUT
CONTROL knob adjusts the full output range for pipe welding.
The ARC CONTROL knob sets the short circuit current (arc-force)
during stick welding to adjust for a soft or a more forceful digging
arc (Crisp). Increasing the number from -10 (Soft) to +10 (Crisp)
increases the short circuit current which results in a more forceful
digging arc. Typically a forceful digging arc is preferred for root
and hot passes. A softer arc is preferred for fill and cap passes
where weld puddle control and deposition (“stacking” of iron) are
key to fast travel speeds. It is recommended that the ARC
CONTROL be set initially at 0.
TOUCH START TIG MODE
The Vantage can be used in a wide variety of DC TIG welding
applications.
The TOUCH START TIG setting of the MODE switch is for DC
TIG (Tungsten Inert Gas) welding. To initiate a weld, the
OUTPUT CONTROL knob is first set to the desired current and
the tungsten is touched to the work. During the time the tungsten
is touching the work there is very little voltage or current and, in
general, avoids tungsten contamination. Then, the tungsten is
gently lifted off the work in a rocking motion, which establishes the
arc.
To stop the arc, simply lift the TIG torch away from the work piece.
When the arc voltage reaches approximately 30 volts, the arc will
go out and the machine will automatically reset to the touch start
current level. The tungsten may then be retouched to the work
piece to restrike the arc. The arc may also be started and stopped
with an Amptrol or Arc Start Switch.
The ARC CONTROL is not active in the TIG mode.
In general the ‘Touch Start’ feature avoids tungsten contamination
without the use of a Hi-frequency unit. If the use of a high
frequency generator is desired, the K930-2 TIG Module can be
used with the Vantage. The settings are for reference.
The Vantage is equipped with the required R.F. bypass circuitry
for the connection of high frequency generating equipment.
The Vantage and any high frequency generating equipment must
be properly grounded. See the K930-2 TIG Module operating
manuals for complete instructions on installation, operation, and
maintenance.
When using the TIG Module, the OUTPUT control on the Vantage
is used to set the maximum range of the CURRENT CONTROL
on the TIG Module or an Amptrol if connected to the TIG Module.
VANTAGE SETTINGS WHEN USING THE K930-2
TIG MODULE
• Set the WELD MODE switch to the “Touch Start Tig 20-250
Setting”.
• Set the IDLER switch to the “AUTO” position.
• Set the WELDING TERMINALS switch to the “Remotely
Controlled” position. This will keep the solid state contactor open
and provide a “cold” electrode until the triggering device
(Amptrol or Arc Start Switch) is pressed.
When using the TIG Module, the OUTPUT control on the Vantage
575 is used to set the maximum range of the CURRENT
CONTROL on the TIG Module or an Amptrol if connected to the
TIG Module.
Table B.2
Cummins B3.3 Engine Fuel Consumption
Cummins B3.3 Running Time for
36 Kw 94.6 L
@1500 RPM (Hours)
Low Idle - 1.6 litres/hour 59.5
no load 1300 RPM
High Idle - 2.0 litres/hour 47.3
no load 1590 RPM
DC CC Weld 5.3 litres/hour 17.8
Output 450
Amps @ 38 Volts
Auxiliary Power 4.2 litres/hour 21.0
12,000 VA