Lincoln 1400 Series Service Manual page 29

IGNITION CONTROL - REPLACEMENT
1. Remove control panel top and front cover.
2. Depress two (2) locking clips on front cover of relay.
3. Remove control portion of relay by pulling straight out (rocking motion).
4. Remove wires from plug-in terminal strip, note wire numbers and location.
5. Remove two (2) screws from mounting bracket and remove.
6. Reassemble in reverse order. Check system operation.
HIGH LIMIT THERMOSTAT - REPLACEMENT
1. Remove control panel top and front cover.
2. Remove conveyor and fingers.
3. Remove capillary bulb from wire form in oven chamber and pull through tube into control box.
4. Remove two (2) wires from thermostat, note wire numbers and location for reinstallation.
5. Remove screws from bracket and remove thermostat.
6. Reassemble in reverse order making sure capillary tube is placed securely in the wire form.
NOTE: Depress reset button to insure thermostat is set for operation.
SPARK GENERATOR - REPLACEMENT
1. Remove control panel top and front cover.
2. Remove two (2) wires for spark generator.
3. Unplug spark lead on bottom of spark generator from ignition control.
4. Remove two (2) mounting screws and remove generator assembly.
5. Reassemble in reverse order and check system operation.
SOLENOID VALVE - REPLACEMENT
1. Remove control panel top and front cover.
2. Disconnect pipe union just above gas valve assembly.
3. Disconnect two (2) wires from solenoid, note wire number and location for reinstallation.
4. Remove four (4) nuts from main orifice burner bracket and remove assembly.
5. Replace valve and reassemble in reverse order.
6. After assembly, check all fittings for leaks and check system operation.
BURNER ALARM - REPLACEMENT
1. Remove control panel top and front cover.
2. Remove two (2) wires from alarm, note wire numbers and location.
3. Remove retainer cover from alarm and remove assembly from mounting bracket.
4. Reassemble in reverse order and check.
LIGHT (220V) - REPLACEMENT
1. Remove control panel top and front cover.
2. Remove two (2) wires from light assembly, note wire number and location.
3. Grasp body of light assembly and slide sideways to remove.
4. Reassemble in reverse order and check.
TRANSFORMER, STEP DOWN/120 VAC
1. Shut off power at main breaker.
2. Remove control compartment covers.
3. Remove wires from transformer and mark for reassembly.
4. Remove 4 mounting screws from transformer base and replace.
5. Reassemble in reverse order.
NOTE: Voltage output of the secondary is to be 120 VAC ± 10%. Check for this output
at the secondary before installing leads to the secondary. If voltage above or below
is measured, recheck the position of the primary leads.
Impinger I – 1400 Series Advantage Service Manual – Dom & Int'l 29