Lincoln Impinger II - Advantage Series, Service Manual

Page: 20 / 36

Impinger II – Advantage Service Manual - Domestic 20
ELECTRONIC TEMPERATURE CONTROL BOARD - REPLACEMENT
1. Remove control box cover.
2. Disconnect wires and molded connector and mark for reinstallation.
3. Depress nylon clips and remove circuit board from mounting bracket.
4. Reassemble in reverse order and check operation.
ELECTRONIC TEMPERATURE CONTROL BOARD - CALIBRATION
1. Place the thermocouple of your test meter through a finger hole in the top center of the oven.
2. With temperature dial fully counter clockwise, align dial red line over "CAL" mark on temperature scale
and tighten dial knob.
3. Turn temperature dial fully clockwise, adjust pot on temperature control to achieve 575°F on temperature
meter.
4. Set dial to 500°F. Adjust dial to match actual temperature.
5. Seal adjustment pot with glyptol or nail polish.
TEMPERATURE CONTROL POTENTIOMETER - REPLACEMENT
1. Shut off power at main breaker.
2. Remove control panel top and front cover.
3. Loosen two (2) allen screws and remove knob by sliding off shaft.
4. Remove mounting nut from potentiometer shaft and push out.
5. Unplug wire connector from control board.
6. Reassemble in reverse order and check system operation.
HEAT LIGHT - REPLACEMENT
1. Shut off power at main breaker.
2. Remove control panel top and front panel.
3. Remove two wires from burner light, note number and location.
4. Grasp body of light assembly and slide sideways to remove.
5. Reassemble in reverse order and check.
BURNER CONTROL - HONEYWELL - REPLACEMENT
1. Shut off power at main breaker.
2. Remove control panel top and front cover.
3. Remove wires from control, note wire numbers and location for reassembly.
4. Remove screws from control and replace.
5. Reassemble in reverse order and check system operation.
GAS VALVE - REPLACEMENT
1. Shut off power at main breaker.
2. Shut off the gas supply in the main line to the oven.
3. Disconnect the flexible gas hose.
4. Remove the control panel top and front panel.
5. Remove the manual gas shut off valve from piping.
6. Remove screws from the bulkhead plate located on rear of oven at the gas pipe.
7. Remove the section of gas pipe to gas valve.
8. Disconnect the electrical leads from the solenoid valve. Disconnect bypass tube.
9. Loosen the gas line union located near the burner and remove the gas valve and piping assembly.
10. Finish removal of the gas piping from gas valve.
11. Reassemble in reverse order.
12. Check all gas fittings for leaks.
13. Adjust the gas manifold pressure on the gas valve. "Refer to the specification plate on the oven for
proper rating."