Lincoln 3262-2, 3270-2, 3240-2 service manual

Page 12

Oven will not heat

Gas supply

Check for adequate gas supply to oven.

 

Manual gas shut off valve

Check to see that the manual gas shut off valve is

 

 

open. Also, check flexible gas line connection for any

 

 

damage.

 

Main fan motor

Check for main fan operation. If it is not operating, refer

 

 

to “Oven fan will not run”.

 

Relay, main fan

Check for supply voltage to relay terminal #13. If

 

 

voltage is not present, trace wiring back to power

 

 

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

 

 

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

 

 

the relay is energized, replace the main fan relay.

 

Fuse, 2 Amp, control (F8)

Check, replace if necessary.

 

 

 

 

Fuse holder

Check, replace if necessary.

 

 

 

 

Switch, oven fan

Check for supply voltage to the switch, if no voltage is

 

 

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

 

 

continuity between switch terminals. Replace switch as

 

 

needed.

 

Switch, burner

Check for supply voltage to the switch, if no voltage is

 

 

present, trace wiring back to the oven fan switch.

 

 

Check continuity between switch terminals. Replace

 

 

switch as needed.

 

Air pressure switch

Check for supply voltage to the air pressure switch. If

 

 

no voltage is present, trace wiring back to burner

 

 

switch. This normally open switch should close when

 

 

the main fan is activated. Check air switch tube for

 

 

blockage or any obstructions, repair as needed. Refer

 

 

to the “Removal and installation” section for proper

 

 

adjustment of air pressure switch. Replace air pressure

 

 

switch as needed.

 

Thermostat, hi-limit

Terminals are normally closed. If open, reset and test

 

 

oven for proper operation. If thermostat will not hold for

 

 

maximum oven temperature, and oven is not exceeding

 

 

temperature control setting, check for proper location of

 

 

capillary tube in the oven cavity. If above checks okay,

 

 

replace hi-limit thermostat.

 

Burner control

Check for supply voltage to the burner control at

 

 

terminals #1 and #3. If no voltage is present, trace

 

 

wiring back to the hi-limit thermostat. If voltage is

 

 

present, check for supply voltage at pins #8 and #3

 

 

(burner blower motor). If voltage is not present, replace

 

 

burner control. If voltage is present, proceed.

 

Motor, burner blower

Check for supply voltage to the burner blower motor. If

 

 

no voltage is present, trace wiring back to the burner

 

 

control. If voltage is present, and the motor is not

 

 

turning, check for opens, shorts or grounds.

 

 

WITH POWER OFF: Check for locked rotor.

 

 

Replace burner blower motor as needed.

 

Air pressure switch

Check for supply voltage at the COM terminal on the air

 

(burner motor)

pressure switch. If no voltage is present, trace wiring

 

 

back to burner control. If voltage is present, check for

 

 

supply voltage switching to the NO terminal on the air

 

 

pressure switch. If the burner blower motor is running,

 

 

but voltage is not switching to the NO terminal of the air

 

 

pressure switch, check air switch tube for blockage or

 

 

any obstructions, repair as needed. Refer to the

 

 

“Removal and installation” section for proper

 

 

adjustment of air pressure switch. Replace air pressure

 

 

switch as needed.

12

 

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

Page 11 Page 13
Image 12
Page 11 Page 13
Contents Impinger X2 Ovens With Analog Controls Phase Power SupplyTemperature Control Main FAN Circuit3240-2 230VAC 50 HZ Schematic Diagram Model 3240-2, 3262-2, 3270-2 50 HZ Troubleshooting Guide Symptom Possible Cause EvaluationBearings. Replace bearings as needed With Power on and Thermocouple Leads Attached to the Electronic TemperaturePage Assembly. Check for damaged or torn belting. Check Troubleshooting Guide Page Page With Power on and Thermocouple Leads Page Shaft and Blower Wheel Replacement Impinger X2 Series OvensPage RELAY, Main FAN, Replacement TIMER, 30 Minute Cool Down ReplacementFuse Holder Replacement SWITCH, ON/OFF ReplacementBurner Control Replacement AIR Pressure Switch ReplacementAIR Pressure Switch Adjustment Electronic Temperature Control ReplacementHairpin Switch Thermocouple Replacement THERMOSTAT, HI-LIMIT ReplacementTemperature Regulation Valve Replacement GAS Valve ReplacementMain Burner Orifice Replacement Pilot Orifice ReplacementSpark Igniter Replacement Conveyor Motor ReplacementHall Effect Sensor Replacement Conveyor Control ReplacementConveyor Control Programming Chamber Drive Constant Length Type Dayton GleasonConveyor Control Programming Dayton MOTOR, Direct Drive Conveyor Control Programming Dayton MOTOR, Right Angle Drive Page This page intentionally left blank General View Letter Part Number DescriptionPage Oven Cavity Page Control BOX Page BURNER/DRIVE END Page CONVEYOR, Single Page CONVEYOR, Dual Belt
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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.

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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.
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