Lincoln Electric manual Welder Operation, Stopping, Typical Ranger 250 Fuel Consumption

B-4 OPERATION B-4

CAUTION

Operating the starter motor for more than 5 sec- onds can damage the motor. If the engine fails to start, release the switch and wait 10 seconds before operation the starter again. Do NOT push the START button while the engine is running because this can damage the ring gear and/or the starter motor.

NOTE: When starting a Ranger 250 for the first time, or after an extended period of time of not operating, it will take longer than normal because the fuel pump has to fill the fuel line and carburetor.

STOPPING

Remove all welding and auxiliary power loads and allow the engine to run at low idle speed for a few minutes to cool the engine.

Stop the engine by placing the RUN-STOP in the STOP position.

NOTE: A fuel shut off valve is not required on the Ranger 250 because the fuel tank is mounted below the engine.

WELDER OPERATION

DC Stick Welding

The Ranger 250 can be used with a broad range of DC stick electrodes.

The MODE switch provides two stick welding settings as follows:

Constant Current (CC-STICK) Welding

The CC-STICK position of the MODE switch is designed for horizontal and vertical-up welding with all types of electrodes, especially low hydrogen. The out- put CONTROL dial adjusts the full output range for stick welding.

The ARC CONTROL knob sets the short circuit cur- rent during stick welding (arc-force). Increasing the number from -10 to +10 increases the short circuit cur- rent and prevents sticking of the electrode to the plate while welding. This can also increase spatter. It is rec- ommended that the ARC CONTROL be set to the minimum number without electrode sticking. Start with the dial set at 0.

PIPE Welding

This slope controlled setting is intended for "out-of- position" and "down hill" pipe welding where the oper- ator would like to control the current level by changing the arc length. The output CONTROL dial adjusts the full output range for pipe welding. The ARC CON- TROL knob sets the short circuit current during stick welding (arc-force). Increasing the number from -10 to +10 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 dial set at 0.

	TYPICAL RANGER 250 FUEL CONSUMPTION
	Kohler CH20	Onan P220 OHV	Running Time for
	20HP @ 3600 RPM	20.5HP @ 3600 RPM	12 gallons-hours
	Gal./Hr (Liters/Hr)	Gal./Hr (Liters/Hr)	CH20/P220 OHV
Low Idle - No Load
2400 R.P.M.	0.6 (2.3)	0.5 (1.9)	20/24
High Idle - No Load
3700 R.P.M.	0.8 (3.0)	0.8 (3.0)	15/15
DC Weld Output
250 Amps @ 28 Volts	1.40 (5.3)	1.6 (5.9)	8.6/7.5
Auxiliary Power
8,500 Watts	1.47 (5.6)	1.7 (6.4)	8.2/7.0

RANGER 250