Spark Generator

After a pre-purge time of 30 to 60 seconds after

 

 

blower motor starts, check for 220 VAC to spark

 

 

generator. If voltage is not present, check reset

 

 

button on ignition control. If voltage is present,

 

 

visually check for spark at ignitor head.

 

Ignitor/Sensor Assembly

Check for visible damage to ignitor/sensor

 

 

assembly. If there is no visible damage to the

 

 

components, and no spark, replace the spark

 

 

generator. If there is visible damage to the ignitor

 

 

sensor assembly, replace. Also check for frayed or

 

 

damaged wire in burner tube.

 

Gas Valve

Check for 220 VAC supply to gas valve. If no

 

 

voltage present, check reset button on ignition

 

 

control, check all connections for tightness. If there

 

 

is no voltage at gas valve, replace ignition control.

 

 

If there is voltage present, check for gas pressure

 

 

at gas pressure tap located in gas piping. If there is

 

 

no gas pressure, replace gas valve.

No Pilot

 

If the ignition control is energized, and the gas

 

 

valve and ignitor circuits are energized, visually

 

 

check for pilot flame. This may be done by opening

 

 

the small inspection door on the end of the burner,

 

 

or by opening the main oven door and looking

 

 

under the lower finger housings on the right side of

 

 

the oven. If no pilot flame is visible, check the

 

 

following.

 

Pilot Tube

Check for gas pressure at pilot tube. Disconnect

 

 

pilot tube at burner and connect manometer to pilot

 

 

tube. If no gas pressure is present, check for

 

 

blockage in pilot tube. If these are clear, and there

 

 

is gas supplied to the oven, replace the gas valve.

 

Pilot Orifice

If there is gas pressure at the pilot tube, check the

 

 

pilot orifice for obstructions. Replace as needed.

 

Burner Ignitor

Check the burner ignitor head for any obstructions,

 

 

also check for frayed or broken wire, any type of

 

 

damage to spark gap (.100 in 2.5 mm).If there is

 

 

visible damage, replace ignitor assembly.

Pilot flame, but burner

Flame Sensor

(There should be a visible pilot flame at this time).

will not stay ignited

 

To check for flame sensor operation, connect a

 

 

digital multimeter. (Capable of measuring D.C.

 

 

microamperes) between the flame sensor wire and

 

 

the ignition control. NOTE: This is current

 

 

measurement and the meter must be connected in

 

 

series. Proper current readings should be

 

 

Honeywell 2-4 micro amp D.C., Landis & Gyr. 3

 

 

micro amp D.C. If these readings are not achieved,

 

 

replace ignitor/sensor assembly. Also check for any

 

 

type of damage to flame sensor wire and

 

 

connections.

 

Ignition Control

If there is sufficient flame sensor current, but the

 

 

burner will not remain ignited, check reset buttonon

 

 

ignition control.

Indicator light is on but

Gas Control Relay

Check for 220 VAC to relay coil. If no voltage is

no main flame, (Model

 

present, trace wiring back to ignition control. If

1046-1047)

 

voltage is present, check to insure contacts are

 

 

closing.

48

Impinger I -–1000 Series Service Manual - International

Page 47 Page 49
Page 48
Image 48
Lincoln Series 1000, Series 1200 service manual
Page 47 Page 49

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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