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B-2
OPERATION
B-2
Welder Controls - Function and Operation
ENGINE “ON-OFF” Switch
When placed in the “ON” position, this switch
energizes the engine ignition circuit. When placed in
the “OFF” position, the ignition circuit is de-energized
to shut down the engine.
ENGINE “START” Push-Button Switch
Energizes engine starter motor.
“Polarity” Switch
Never change the “Polarity” switch setting while
welding. This will damage the switch.
“ Range” Switch
Never change the “RANGE” Switch setting while
welding. This will damage the switch.
“ Control” Switch
Provides a fine welding current adjustment within the
Range Switch settings in the STICK/TIG mode and
welding voltage control with the Range switch set in
the wire feed mode.
“IDLER” Switch
The idler switch has two positions, “HIGH” and
“AUTO”.
When in “HIGH” ( ) position, the engine will run
continuously at high idle.
When in “AUTO” ( / ) idle position, the idler
operates as follows:
• Welding
When the electrode touches the work, the welding
arc is initiated and the engine accelerates to full
speed.
After welding ceases (and no auxiliary power is
being drawn), the engine will return to low idle
after approximately 10 to 14 seconds.
• Auxiliary Power
With the engine running at low idle and auxiliary
power for lights or tools is drawn (approximately
100-150 watts or greater) from the receptacles,
the engine will accelerate to high speed. If no
power is being drawn from the receptacles (and
not welding) for 10-14 seconds, the idler reduces
the engine speed to low idle.
WELDMARK 225
Low Idle - No Load
2200 RPM
High Idle - No Load
3700 RPM
AC CC Weld Output
225 Amps @ 25 Volts
DC CC Weld Output
210 Amps @ 25 Volts
DC CV Weld Output
200 Amps @ 20 Volts
Auxiliary Power
8000 Watts
KOHLER CH20S
20 H.P. COMMAND
.4 Gallons/Hour
(1.5 Liters/Hour)
.9 Gallons/Hour
(3.5 Liters/Hour)
1.3 Gallons/Hour
(5.0 Liters/Hour)
1.4 Gallons/Hour
(5.3 Liters/Hour)
1.2 Gallons/Hour
(4.5 Liters/Hour)
1.4 Gallons/Hour
(5.3 Liters/Hour)
WELDMARK 225 Approximate Fuel Consumption
ON
OFF
Explanation of Symbols that Appear on this Equipment
Low Idle
High Idle
CAUTION
STICK/TIG - CC 50, 70, 90
6 Range Settings 125, 175, 210 DC/225 AC
WIRE FEED - CV
1 Range Setting 200
Process Maximum Current
on Each Setting
CAUTION