Lincoln Series 1200, Series 1000 service manual

Page 33

Intermittent heating

As Follows

Both the main fan motor and burner blower motor

 

 

are equipped with thermal protection and will cease

 

 

to operate if overheating occurs. This can cause

 

 

the units to cycle on and off intermittently. This may

 

 

be caused by improper ventilation. Also most of the

 

 

problems listed under "oven will not heat" can

Conveyor will not run

 

cause intermittent failure.

 

Voltage Supply

Check incoming voltage supply at line 1 to neutral.

(S/N 100-4389)

 

There should be a voltage reading of 120 VAC. If

 

 

not present, check breakers.

 

 

3 Amp Fuse

This conveyor fuse is located on the front panel.

 

 

Replace if defective.

 

 

Fuse Holder Conveyor Switch

Check and/or Replace. Same procedure as for fan

 

 

switch.

 

 

D. C. Motor Control Board

Check for 120 VAC input to D. C. control board

 

 

across L1 and L2. Check the 3 amp fuse on the D.

 

 

C control board. Check for D.C. voltage at terminal

 

 

F1 and F2. Voltage should be 100 VDC ± 10

 

 

steady. If this voltage is not present, replace D. C.

 

 

control board. Check for D. C. voltage output to the

 

 

motor across terminals A1 and A2 (this voltage

 

 

should be approx. 125 VDC at maximum conveyor

 

 

motor speed).

 

 

Speed Control Potentiometer

This is a 0 to 400 ohm or 0 to 500 ohm, 10-turn

 

 

potentiometer. WITH POWER OFF: remove the

 

 

red, white, and black leads from terminals S1, S2,

 

 

S3. With a digital multimeter, check the ohm

 

 

reading across the red to black leads. This ohm

 

 

reading should be a steady 400-ohm, or 500-ohm,

 

 

through the entire 10-turn rotation of the

 

 

potentiometer. Red to white, should be 0-400 or 0-

 

 

500 ohms as the pot. is rotated. Check for shorts or

 

 

opens or unsteady, ohm reading, if potentiometer is

 

 

defective, replace. If the potentiometer checks OK,

 

 

and

 

 

 

there is no output at terminals A1 and A2, replace

 

 

the D.C. control board.

 

 

Reversing Switch

If there is D. C. voltage output from the motor

 

 

control board, but the conveyor drive motor is not

 

 

running, check the D.P.D.T. reversing switch.

 

Conveyor Drive Motor

Check the conveyor drive sprocket for tightness.

 

 

Disconnect the motor, check the red and black

 

 

motor leads for opens, shorts or grounds. Check

 

 

the brushes for excessive or

abnormal wear.

 

 

Replace as needed. Reconnect motor. Test for

Conveyor will not run

 

operation. If motor does not run, replace.

Voltage Supply

Check incoming voltage supply at line 1 to neutral.

(S/N 4390 to Q14974

 

There should be a voltage reading of 120 VAC. If

1000 Series

 

not present, check breakers.

 

S/N 4390-Q14790

3 Amp Fuse

This conveyor fuse is located on the front panel.

1200 Series)

 

Replace if defective.

 

 

Fuseholder

Check and/or Replace

 

 

Fan Switch

See procedure for checking on page 26.

 

Conveyor Switch

Same procedure as for fan switch.

NOTE:

(Dual Belt Ovens)

Dual belt ovens utilize 2 complete independent

 

 

conveyor drive systems. The trouble shooting

 

 

procedures are the same as single belt ovens,

 

 

except that the dual belt ovens use one each of the

 

 

following: one "A" DC. control board and one "B" D.

 

 

C. control board.

 

Impinger I -–1000 Series Service Manual - International

33

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Contents Impinger Conveyor Ovens Table of Contents Burner Circuit Sequence of Operations 1002/1003Conveyor Drive 100 toSequence of Operations Sequence of Operations 1028 / 1029 / 1228 TemperatureHeat Circuit ControlTime Temp TIME/TEMP Sequence of OpertionsSequence of Operations / 1033, 1034, 1046 TRANSFORMER12.6V Model 1242 240V 50HZ Natural GAS/DUAL Belt Sequence of Operations 1042 / 1043 / 1242TIME/TEMP Schematic / 1002 Schematic / 1006 to Serial Numbers Q14279 Schematic / 1028, 1029, S/N Q19071 & below Schematic / 1028, 1029, S/N Q19078 & Above Schematic / 1030, to S/N Q17170 Schematic / 1030, S/N Q17171 & Above Schematic / 1032. S/N Q19077 & below Schematic / 1032, S/N Q19078 & Above Schematic / 1033, 1034, 1046 Schematic / 1042, 1043, S/N Q14279 & below Schematic / 1042, 1043, S/N Q14280 & Above Schematic / 1228 , S/N Q14790 & below Schematic / 1228, 1229, S/N Q14791 & Above Schematic / 1242 Symptom Possible Cause Evaluation Troubleshooting Guide 1000 & 1200 / GAS OvensJohnson Controls For ovens withIgnition Control Honeywell IgnitionControl FlameFor ovens with Temperature ControlMechanical ThermostatCode Symption Possible Cause Evualation Model 1030Page Page Page Page Page Page Page Troubleshooting Guide 1000 & 1200 Series / Electric Ovens Page Page Page Page Page Page Troubleshooting / GAS Ovens 1033, 1034, 1046 Page Page Page Page Page Page MOTOR, Main FAN REMOVAL, Installation & AdjustmentsCAPACITOR, Motor FAN, MainAbove GAS Above Electric Cool Down SwitchRELAY, D.P.S.T Cooling FAN, Control BOXBurner Blower Motor To Remove the Blower Wheel for Periodic Cleaning AIR Pressure SwitchBlower WHEEL, Burner Manifold PRESSURE-ADJUSTMENT Burner AssemblyManifold Pressure Adjustment GAS Control ValveTemperature Control Board Temperature Control Valve Robert ShawTemperature Control Potentiometer Replacement Solenoid ValveThermocouple Measurement Chart THERMOCOUPLE- ReplacementMercury Contactor Heating ElementIgnition Control 24V GND Flame SensorTransformer 120/24 VAC Burner IgnitorBurner Light 24 VAC GAS Ovens Heat Light 125 VAC Electric OvensConveyor Motor Replacement Baldor 1000 Series SN 4390 Conveyor Motor Replacement Bodine SNMain Orifice Burner Potentiometer Conveyor Speed ControlCoupling and Encoder Disc Optical Encoder AssemblyConveyor Motor Control Board TACH. GeneratorMotor Control Board Calibration SN 100 to 4389 Bodine SystemStyle 1 Control Board Adjustment REG MIN MAXMotor Control Board Style Style 2 and Style 3 Control Board AdjustmentStyle DIP Switches Control Switch Position OFF Mini Circuit Breaker Reversing Conveyor DirectionBEARING, Conveyor Drive ENDBEARING, Conveyor SN 2164 and Above Hall Effect Sensor ReplacementTRANSFORMER-STEPPER Motor Control OLD StyleThermistor Replacement Temperature Gauge ReplacementOven Temperature TRANSFORMER, TIME/TEMP. DisplaySwitch Settings ALL 1000 & 1200 Series OvensType OFF Procedure for USE of TIME/TEMP. Simulator SWITCH, DISPLAY, SETDip Switch Switch Replacement FAN, HEAT, ConveyorSwitch Replacement FAN Switch Update GAS Valve Replacement and Adjustments High Limit Thermostat Replacement Ignition Control ReplacementSpark Generator Replacement Solenoid Valve ReplacementPilot Light 220V Replacement Burner Alarm Light ReplacementIgniter Sensor Assembly Replacement Burner Blower Motor ReplacementTemperature Control Replacement Relay ASSEMBLY, Burner Blower Motor ReplacementRELAY, GAS Control Replacement Model 1046,1047 Time Delay RELAY, 20 Minute ReplacementLetter Description Parts / Model Series 1000 & 1200 GeneralBlow UP / 1000, 1200 General Parts / Model 1002-1003 , S/N 2584 to Blow UP / 1002, 1003 S/N 2584 to See Parts / Model 1002-1003, S/N 4390 & UPBlow UP / 1002, 1003 S/N 4390 & Above See Parts / ModelBlow UP Parts Blow UP / 1028, 1029 PARTS/ Model Blow UP Parts / 1042 BLOW-UP / 1042 Parts / 1033, 1034, 1046 BLOW-UP / 1033, 1034, 1046 Parts Blow UP / 1228 Parts / 1242 Blow UP / 1242 Parts / Oven Back GAS Blow UP / Oven Back GAS Parts / Oven BACK- Electric Blow UP / Oven Back Electric Parts / Conveyor Motor Assembly S/N 4390 & Above Blow UP / Conveyor Motor Assembly S/N 4390 & Above Parts / Series 1000 Conveyor Blow UP / Series 1000 Conveyor Parts / Series 1200 Conveyor Control Blow UP / Series 1200 Conveyor Control Parts / Series 1200 Conveyor Blow UP / Series 1200 Conveyor 112

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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