A-9

INSTALLATION

A-9

 

 

 

7.Set the "IDLE" switch to the "AUTO" position. When not welding, the Ranger 250 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.

8.When the gun trigger is closed, the current sens- ing circuit will cause the Ranger 250 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.

Connection of LN-742, K487-25 Spool Gun, and

Cobramatic to Ranger 250

1.Shut the welder off.

2.Connect per instructions on the appropriate con- nection diagram in Section F.

Connection of Prince Spool Gun to the RANGER 250

Connection of the Prince XL Spool Gun requires the use of the K1849-1 Adapter Module.

1.Shut the Welder off.

2.For electrode Positive, connect the electrode cable to the "+" terminal of the welder and work cable to the "-" terminal of the welder. For electrode Negative, connect the electrode cable "-" terminal of the welder and work cable to the "+" terminal of the welder.

3.Connect the Control Cable of the Spool Gun to the Adapter Module and connect the Control Cable of the Adapter Module to the Welder.

4.Connect the Gas Hose.

5.Set the MODE switch to the "CV-WIRE " position.

6.Set the "WELD TERMINALS" switch to "WELD

TERMINALS ON"

7.Set the "ARC CONTROL" knob to "0" initially and adjust to suit.

8.Set the "IDLE" switch to the "HIGH" position.

RANGER 250

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Lincoln Electric IM833-C manual Connection of Prince Spool Gun to the Ranger