Conveyor Drive(Stepper)

Check the drive sprocket on motor output shaft to

 

Motor

insure that it is tight. Check motor windings

 

 

measurement should be approximately 2 ohms.

 

 

Terminals 1-5, 2-6, 3-7, 4-8. WITH POWER OFF:

 

 

Turn the motor shaft to check for jammed gear box.

 

 

If motor shaft will not turn, replace conveyor

 

 

drive(stepper) motor.

Time/Temp. Display

12 VAC Power Supply

Measure the transformer primary for a nominal 120

inoperative

(Transformer)

VAC input, if voltage is not present, trace wiring

 

 

back to the oven fan switch. Measure the

 

 

secondary output, which will normally be 12-15

 

 

VAC. Voltage across terminals 1 and 3 on the

 

 

time/temp. display should read 12-15 VAC.

 

 

Terminals 1-2 and 2-3 should be 1/2 the voltage

 

 

reading 1 to 3. If the above secondary readings are

 

 

not achieved, replace transformer.

 

Time/Temp. Display

If proper voltage is present at terminal 1,2, and 3

 

 

on time/temp. display, but the display is not lighted,

 

 

recheck all connections for tightness. If time/temp.

 

 

display is still not operating, replace the time/temp.

 

 

display.

Temp. Display out or

NOTE: Time/temp displays

Place your pyrometer thermocouple into the center

inaccurate

use two types of temperature

between finger T2 and T3 in the oven. Disconnect

 

sensor Thermistor Probe - 2

the yellow tipped thermistor leads from the

 

yellow wires. Thermocouple

time/temp. terminals 9 and 10. Measure the

 

Probe - 1 red & one white

resistance of the thermistor probe.

 

wire

 

 

Thermistor Probe

See chart on page 72 for proper resistance

 

 

readings. Inspect the thermistor bulb for its proper

 

 

location in its spring holder. Check for short in

 

 

leads where they enter the sensor bulb. Also check

 

 

each thermistor lead for short to ground.

 

Thermocouple Probe

Place your pyrometer thermocouple into the center

 

 

between fingers T2 and T3 in the oven. Connect

 

 

temperature meter to thermocouple at terminals 9

 

 

& 10 on back of the time/temp display. (Be sure to

 

 

maintain proper polarity on thermocouple

 

 

connections.) Compare actual oven temperature

 

 

with the reading at the time/temp display. If the

 

 

temperature readings match, recalibrate or replace

 

 

time/temp display. If the readings do not match,

 

 

replace thermocouple probe.

 

Power Supply

If a strange or unusual behavior is experienced,

 

 

such as a rolling of numbers, or lock-up at a given

 

 

number, first check for a display circuit lock-up.

 

 

This may be caused by a voltage spike or surge in

 

 

the incoming power lines. To eliminate this

 

 

condition, remove power from time/temp. display by

 

 

shutting off the main fan switch for 15 seconds.

 

 

This should eliminate the problem. If this does not

 

 

solve the problem, it may becoming in through the

 

 

Commercial power lines. Suggest that customer

 

 

contact their power company for evaluation.

Impinger I -–1000 Series Service Manual - International

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Lincoln Series 1200, Series 1000 service manual
Page 50 Page 52

Series 1000, Series 1200 specifications

The Lincoln Series 1200 and Series 1000 are two distinguished models in the range of Lincoln Electric welding machines, epitomizing quality, versatility, and advanced technology for both industrial and residential welding applications.

The Lincoln Series 1200 is renowned for its robust build and high-performance capabilities. One of its main features is the ability to perform both MIG (Metal Inert Gas) and stick welding processes, making it a versatile option for various welding requirements. It incorporates an intuitive control panel that allows for easy settings adjustments, ensuring operators can swiftly adapt to different materials and thicknesses. The Series 1200 is equipped with a powerful drive system to provide smooth wire feeding, minimizing downtime due to jams or misfeeds. Additionally, its high-duty cycle support allows continuous operation, making it an ideal choice for professional welders and fabrication shops.

In terms of technology, the Series 1200 employs advanced inverter technology that enhances energy efficiency while reducing the machine’s overall weight. This results in portability without compromising power, making it a practical choice for on-site tasks. Moreover, the machine features an automatic voltage adjustment that optimizes performance based on the input voltage, ensuring reliable operation even under fluctuating power conditions.

On the other hand, the Lincoln Series 1000 is specifically designed for entry-level users and small projects. It shines with its user-friendly interface, which simplifies the welding process for beginners. This model typically includes pre-set parameters and an easy-to-read display, enabling novice operators to achieve excellent welds with minimal experience. Despite its entry-level focus, the Series 1000 does not skimp on performance, offering dependable results across various materials.

Both the Series 1200 and Series 1000 incorporate safety features, including thermal overload protection, ensuring that users can operate the machines with peace of mind. Their durable construction allows for prolonged use in tough work environments without sacrificing reliability.

In conclusion, the Lincoln Series 1200 and Series 1000 cater to a wide range of welding needs, from professional applications to home projects. Their respective features and technologies present options that can fit various skill levels while delivering exceptional welding performance and longevity. Whether you are a seasoned professional or a hobbyist, Lincoln Electric provides reliable solutions to meet your welding requirements.
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