Lincoln 1100 Series manual

		then the problem is usually with thetemperature
		control board.
	Temperature Control	If 120 VAC is present on the
	Valve	temperature control board at load
		terminal to neutral, check for voltageat Tempera
		ture Control valve. If voltage is present, listen for
		valve to open and close. Also check for
		opens or shorts in the coil.
		Replace if required.
Intermittent heating	Thermal Overload Of	Both the main fan motor and the
	Main Fan and Burner	burner blower motor are equipped
	Blower Motors	with internal thermal protection and
		will cease to operate if overheatingoccurs. As the
		motors overheat and then cool, this will cause the
		unitsto cycle on and off intermittently.
		This may be caused by improper ventilation or
		preventativemaintenance. Also, most of the
		problems listed under “Oven Will Not
		Heat” can cause intermittent failure.
Conveyor will not run	3 Amp Fuse	Check and replace if defective.
	Fuseholder	Check and replace if defective.
	Fan Switch	Check for continuity between switch
		terminals.
S/N 2011821 & Above	Conveyor Switch	Check for continuity between switch
Refer to Page 45		terminals.
	Speed Adjustment	This is a 0 to 5 K ohm, 10 turn
	Potentiometer.	WITH POWER OFF: Remove the red, black
		and white pot. leads from the motor control
		board at terminalsP1, P2 and P3. With a
		digital multimeter, check the ohm reading
		across the red lead to the black lead. This
		reading shouldbe 5 K ohms ± 5% as the pot is
		rotated from low to high.Place the meter leads on
		the redlead and on the white lead.Rotating the
		pot. slowly, from low to high, the meter reading
		should show an even transition from 0 to
		5 K ohms ± 5%. There should be
		no dead or open spots through out
		the 10 turns of the pot.
		Check all three leads to ground.
		There should be no continuity to
		ground. If any of the above checks
		fail, replace the pot.
	DC Motor Control Board	Check for 120 VAC input to the
		control board at terminals L1 and
		L2. If not present, check the
		conveyor switch and wiring back to the
		3 amp fuse and then back to the power
		source if necessary. If 120 VAC is
		present at L1 and L2, check the VDC
		output at terminals A+ and A-. If a
		DC voltage is not present, check the
		4 amp and the 1 amp fuses on the

30	Impinger II - 1100 Series Service Manual - International

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Lincoln 1100 Series service manual then the problem is usually with thetemperature

Contents

MODEL 1100 SERIES SERVICE MANUALIMPINGER CONVEYOR OVENS INTERNATIONAL TABLE OF CONTENTS SEQUENCE OF OPERATIONS 1104 thru the display into a temperature reading SEQUENCE OF OPERATION 1134 - 1135 - 1136 - S/N 2011383 and above SEQUENCE OF OPERATIONS 2011383 and above SEQUENCE OF OPERATIONS 1152 thru intervals to maintain desired temperature temperature reading by the display into a temperature reading SCHEMATIC SCHEMATIC SCHEMATIC 1134, 1135, 1150, S/N 2011383 AND BELOW SCHEMATIC 1134, 1135 S/N 2011383 AND ABOVE SCHEMATIC 1150 S/N 2011383 AND ABOVE SCHEMATIC 1136, S/N 2011383 AND BELOW SCHEMATIC 1136, S/N 2011383 AND ABOVE SCHEMATIC 1151 S/N 2011383 AND BELOW SCHEMATIC 1151 S/N 2011383 AND ABOVE SCHEMATIC1152 THRU 1158 S/N 2011383 AND BELOW SCHEMATIC1152 THRU 1158 S/N 2011383 AND ABOVE SCHEMATIC1152 AND 1153 S/N 2011821 AND ABOVE SCHEMATIC 1154 THRU 1158 S/N 2011821 AND ABOVE TROUBLE SHOOTING GUIDE GAS OVENS MODELS 1152 - 1153 - 1154 - 1155 - 1156 No main fan cool down present on one side only, replace switch Burner Switchswitch. If switch is closed and voltage Gas Pressure Switch Check for proper line voltage to Flame Sensor Power Supply Ignition ControlFlame will not stay on Pilot lamp is on, but then the problem is usually with thetemperature Power Supply improper adjustment. Also check for wornbearings. TheInstallation and Operations Manual Check power supply at the DC DC Gearmotor switch for 15 seconds, or if display stays on surge in the incoming power lines. To eliminatethis condition remove power from the time/temp required. This should eliminate the problem. If TROUBLE SHOOTING GUIDE ELECTRIC OVENS This normally open switch should close when the Switch, HeatAir Pressure Switch adjustment knob to maximum temperature position as follows MODEL Main fan runs after for proper readings. If these readings WITH POWER OFF: To check resistance of themaintenance. Also, most of the problems are not achieved, replace thermocouple Conveyor will not run TROUBLESHOOTING GUIDE ELECTRIC OVEN MODEL 1151 200 VAC THREE PHASE 60 HZ Relay, Main Fan REFER TO PAGE REFER TO PAGE REFER TO PAGE Mercury Contactor Heater ElementsConveyor will not run S/N 2011383 and above REFER TO PAGE REFER TO PAGE 43 STEPPER MOTOR DRIVE Conveyor will not run red wire and 1 white wire 12 VAC Power Supplyyellow wires, thermo Thermocouple Probe Power Supply experienced, such as a rolling of REMOVAL, INSTALLATION, AND ADJUSTMENT IMPINGER II CONVEYOR OVEN RELAY, DPST 1.Shut off power at main breaker MOTOR, BURNER BLOWER This is part of the burner blower motor assemblyTO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING TO REMOVE BLOWER MOTOR AIR PRESSURE SWITCH Page Page 5.Loosen pipe union in piping assembly 1.Shut off power at the main breakerSOLENOID VALVE 1.Shut off power at main breaker HEATING ELEMENTS 1.Shut off power at main breaker IGNITION CONTROL 1.Shut off power at main breaker 4.Remove control compartment covers ORIFICE, MAIN BURNER2.Shut off gas at main line to the oven 5.Loosen 4 nuts holding manifold to burner cap LAMP, PILOT BURNER LENS, PILOT LAMP 7.To adjust optical encoder OPTICAL ENCODER ASSEMBLY1.Remove gearmotor assembly see “GEARMOTOR” Above TACH. GENERATOR 1.Turn off power at main breaker D C MOTOR CONTROL BOARD 5.Reverse wires fastened to terminals T1 and T2 1.Turn off power and remove conveyor4.Reverse wires fastened to terminals A+ and A 1.Turn off power 2.Remove conveyor TRANSFORMER, TIME/TEMP. DISPLAY MODEL 1100 SERIES OVENS SWITCH, DISPLAY, SET OVEN TEMPERATUREOHMS SWITCH, ON/OFF TRANSFORMER, STEP DOWN/120 VAC DIP SWITCHES FOR 50 SEC. TO 30 MIN. TIMES maximum speed potrefer HALL EFFECT SENSOR - REPLACEMENT AIR PRESSURE SWITCH, BURNER OR OVEN CAVITY 8.Remove top control compartment brace BURNER ALARM - REPLACEMENT4.Remove conveyor gear motor 10.Assemble in reverse order GENERAL –1100SERIES LETTERDESCRIPTION GENERAL 1100 SERIES BLOW UP 1136,1150,1151,1160 Thru1163 Page LETTER CONTROL COMPARTMENT - FRONTMODELS 1152 THRU DESCRIPTION CONTROL COMPARTMENT – FRONT 1152-1158BLOW UP CONTROL COMPARTMENT – REAR LETTERDESCRIPTION CONTROL COMPARTMENT - REAR BLOW UP MODELS AND ABOVE CONTROL COMPARTMENT – REAR BLOW UP MODELS 1130-1136,1150,1151S/N 2011383 AND ABOVEMODELS 1160-1163S/N 2011978 AND ABOVE CONTROL COMPARTMENT – REAR LETTERDESCRIPTION Page LETTER CONTROL COMPARTMENT – REARMODELS 1152 THRU 1158 S/N 2011821 AND ABOVE DESCRIPTIONPage OVEN BACK ASSEMBLY – 1100 SERIES OVEN BACK ASSEMBLY – 1100 SERIES BLOW UP GEARMOTOR ASSEMBLY – 1100 SERIES GEARMOTOR ASSEMBLY – 1100 SERIES BLOW UP CONVEYOR/DOOR – 1100 SERIES CONVEYOR/DOOR – 1100 SERIES BLOW UP This page intentionally left blank This page intentionally left blank