Burner Control Replacement | Lincoln 3262, 3270-2, 3240-2 guide

4.Disconnect wiring from burner blower relay and mark all wiring for reassembly.

5.Remove two mounting screws and remove burner blower relay.

6.Reassemble in reverse order and check system operation.

BURNER CONTROL – REPLACEMENT

1.Shut off power at main breaker.

2.Remove control box cover

3.Disconnect wiring from burner control and mark all wiring for reassembly.

4.Remove mounting screws and remove burner control.

5.Reassemble in reverse order and check system operation.

AIR PRESSURE SWITCH – REPLACEMENT

1.Shut off power at main breaker.

2.Remove control box cover and rear control box cover.

3.Remove cover from air pressure switch. Disconnect wiring from air pressure switch and mark all wiring for reassembly.

4.Remove air switch tube from air pressure switch. Note location of air switch tube, tube must be connected to the “HIGH” port of the air pressure switch.

5.Remove mounting screws and remove air pressure switch.

6.Reassemble in reverse order. Adjust air pressure switch for proper operation (see below) and check system operation.

AIR PRESSURE SWITCH – ADJUSTMENT

1.Start the oven. After the burner ignites, turn the air pressure switch adjustment screw Clockwise until the burner shuts off.

2.Turn the adjustment screw Counterclockwise until the burner ignites, plus one full turn.

3.Seal adjustment screw with nail polish.

4.Replace cover on air pressure switch.

ELECTRONIC TEMPERATURE CONTROL – REPLACEMENT

1.Shut off power at main breaker.

2.Remove control box cover.

3.Disconnect wiring from electronic temperature control and mark all wiring for reassembly.

4.Locate and remove mounting screw at the bottom center of the electronic temperature control. Remove control from control base.

5.Remove two mounting screws from control base and remove control base from oven.

6.Reassemble in reverse order and check calibration of new control (see below) and check system operation.

ELECTRONIC TEMPERATURE CONTROL – CALIBRATION

1.Turn burner switch off.

2.Remove electronic temperature control from the mounting base by removing one retaining screw at the bottom of the electronic temperature control. Pull electronic temperature control from it’s mounting base.

3.Locate Hairpin switch on the control and open the Hairpin switch. (See photo, next page) Replace control in the mounting base.

4.Turn the burner switch on. If the display reads “CAL”, press the “UP” arrow until the display reads “Cnf” on the SV (orange) display.

5.Press the FUNC key until the display reads “P13” in the SV (orange) portion of the display. Using the “UP” or “DOWN” arrows, adjust the “PV” (yellow) portion of the display to read 500. This is the offset point.

6.Press the FUNC key until the display reads “P14” in the SV (orange) portion of the display. Using the “UP” or “DOWN” arrows, adjust the “PV” (yellow) portion of the display to read –50. This is the “offset value”. (continued next page)

Impinger X2 – Analog Service Manual – Dom & Int’l

3240-2, 3262, 3270-2 specifications

The Lincoln 3270-2 is a state-of-the-art welding machine designed for professional welders who require precision, efficiency, and reliability in their welding tasks. This versatile unit is particularly well-suited for MIG and TIG welding, making it an essential tool for both industrial applications and hobbyist projects.

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Another notable characteristic of the Lincoln 3270-2 is its compatibility with a wide range of materials and thicknesses. It effectively welds various metals, including mild steel, stainless steel, and aluminum, making it suitable for numerous applications. The machine can effortlessly adapt to a variety of welding tasks, from thin sheet metal work to thicker structural components.

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With its combination of portability, advanced technology, user-friendly interface, and robust performance, the Lincoln 3270-2 stands out as an ideal choice for professional welders. Whether for fabricating, repairs, or maintenance, this welding machine is designed to meet the high demands of modern welding practices, delivering both efficiency and superior weld quality.