Temperature regulation valve

If 120VAC is present on the electronic temperature

 

 

control, terminal #13 to neutral, check for voltage at

 

 

temperature regulation valve. If no voltage is present,

 

 

trace wiring back to electronic temperature control. If

 

 

voltage is present, listen for valve to open and close.

 

 

Also check for opens or shorts in the operating coil.

 

 

Replace temperature regulation valve as needed.

Intermittent heating

Thermal/Overload of main fan

The main fan motor and burner blower motor are

 

and burner blower motors

equipped with internal thermal protection and will cease

 

 

to operate if overheating occurs. As the motors over-

 

 

heat and then cool, this will cause the units to cycle on

 

 

and off intermittently. Improper ventilation or lack of

 

 

preventive maintenance may cause this. Also, most of

 

 

the problems listed under “Oven will not heat” can

 

 

cause intermittent failure.

Conveyor will not run

NOTE: The ovens may contain

two, three or four conveyor drive systems using like

 

components. The trouble shooting sequence will be the same for each of the conveyor

 

drive systems

 

 

Power supply

Check circuit breakers, reset if required. Check power

 

 

plug to be sure it is firmly in receptacle. Measure

 

 

incoming power, call power co. if needed.

 

Switch, oven fan

Check continuity between switch terminals. Replace

 

 

switch as needed.

 

Relay, main fan

Check for 120VAC supplied to relay terminal #13. If

 

 

voltage is not present, trace wiring back to power

 

 

supply. If voltage is present, check for 120VAC at

 

 

terminal #14. If there is no voltage at terminal #14, and

 

 

the relay is energized, replace the main fan relay.

 

Fuse, 2 Amp

Check, replace if necessary.

 

Fuse holder

Check for 120VAC supplied to fuse holder. If no voltage

 

 

is present, trace wiring back to main fan relay. Check

 

 

fuse holder, replace if necessary.

 

Switch, conveyor

Check for 120VAC supplied to conveyor switch. If no

 

 

voltage is present, trace wiring back to fuse holder.

 

 

Check continuity between switch terminals. Replace

 

 

switch as needed.

 

Control, conveyor

Check for 120VAC supplied to conveyor control at

 

 

terminals #1 (AC) and #2 (AC). If no voltage is present,

 

 

trace wiring back to conveyor switch. If AC voltage is

 

 

present, check for DC voltage output at terminals #3

 

 

(A-) and #4 (A+). If there is AC voltage in, but no DC

 

 

voltage out of the conveyor control. Replace the

 

 

conveyor control. If there is D.C. voltage output,

 

 

proceed.

 

Fuse, 2 Amp

Check, replace if necessary.

 

Fuse holder

Check for D.C. voltage supplied to fuse holder. If no

 

 

voltage is present, trace wiring back to conveyor

 

 

control. Check fuse holder, replace if necessary.

 

Switch, conveyor reversing

Check for D.C. voltage supplied to the reversing switch.

 

 

If no voltage is present, trace wiring back to the fuse

 

 

holder. Check continuity between switch terminals.

 

 

Replace switch as needed.

 

Conveyor motor

Check for D.C. voltage to the conveyor motor. If no

 

 

voltage is present, trace wiring back to the reversing

 

 

switch. If voltage is present and the motor will not run,

 

 

check the motor windings for opens or shorts. Check

 

 

motor brushes for excessive wear. Replace motor

 

 

brushes as needed.

 

 

If any of the above fails, replace conveyor motor.

 

Conveyor

Check for any mechanical problems in the conveyor

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

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Image 9
Lincoln 3262-2, 3270-2, 3240-2 service manual
Page 8 Page 10

3240-2, 3270-2, 3262-2 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.

One of the standout features of the Lincoln 3270-2 is its advanced inverter technology. Inverter technology allows for a more compact design while delivering high power output. This results in a machine that is lightweight and portable, yet capable of handling demanding welding jobs with ease. The inverter system also enhances efficiency, reducing overall energy consumption while maintaining excellent welding performance.

The 3270-2 is equipped with a user-friendly interface, providing welders with intuitive controls to easily adjust settings such as voltage, wire feed speed, and gas flow. Its digital display allows for quick monitoring of parameters, enabling users to make precise adjustments on the fly. This feature is especially beneficial for novices who may need a bit of guidance while getting accustomed to the different welding processes.

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.

Safety is a top priority in the design of the 3270-2. It comes equipped with several integrated safety features, including thermal overload protection, which prevents the machine from overheating during extended use. This attention to safety helps to protect both the welder and the equipment, ensuring a reliable and long-lasting machine.

In addition to its impressive technical specifications, the Lincoln 3270-2 boasts exceptional build quality. The robust construction of the unit ensures it can withstand the rigors of a busy workshop or job site. Its durable outer casing provides protection against dust and debris, enhancing its longevity.

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.
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