Lincoln Impinger II - Advantage Series - Manual (Page 21)

Impinger II –Advantage Service Manual - Domestic 21
BYPASS ORIFICE
1. Shut off power at main breaker.
2. Shut off gas supply to oven.
3. Remove control panel top and front cover.
4. Remove pilot tube from bypass orifice and remove orifice.
5. Reassemble in reverse order.
TEMPERATURE REGULATION VALVE - REPLACEMENT
1. Shut off power at main breaker.
2. Shut off gas supply.
3. Remove control panel top and front cover.
4. Remove bypass tube from burner manifold.
5. Disconnect wires from valve and mark wires for reassembly.
6. Remove (4) nuts from burner manifold and loosen pipe union.
7. Remove temperature control valve and piping.
8. Remove piping from valve and reassemble in reverse order.
9. Check all pipe fittings for leaks.
HOT SURFACE IGNITOR - REPLACEMENT
1. Shut off the power at main breaker.
2. Shut off the gas supply in the main line to the oven.
3. Remove control panel top and front cover.
4. Remove Gearmotor, DC, Conveyor.
5. Remove electrical plug from the burner cap.
6. Remove "Temperature Regulation Valve."
7. Remove 3 screws holding burner cap to burner tube.
8. Pull out on burner cap removing cap and burner venturi.
9. The hot surface ignitor is held in place on the burner venturi by one nut, loosen nut and remove ignitor.
10. Replace in reverse order.
NOTE: Care must be used when handling the hot surface ignitor as they are quite fragile and may be easily
broken if dropped or bumped.
MAIN BURNER ORIFICE - REPLACEMENT
1. Shut off power at main breaker.
2. Shut off gas supply.
3. Remove control panel top and front cover.
4. Remove burner manifold, see "Temperature Regulation Valve."
5. Remove main burner orifice from burner manifold.
6. Reassemble in reverse order.
7. Check all pipe fittings for gas leaks.
CONVEYOR 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 conveyor control board.
6. Reassemble in reverse order and check system operation.