Lincoln 1400 Series Service Manual page 23

BURNER BLOWER MOTOR - REPLACEMENT
1. Shut off power at main breaker.
2. Remove control panel top and front cover.
3. Unplug motor connector.
4. Remove three (3) screws from blower tube at burner housing.
5. Remove air shutter assembly from old motor for installation on new
motor assembly.
6. Reassemble in reverse order and check system operation.
NOTE: Check air shutter adjustment and adjust if necessary
Set air shutter at approx. 1/4" and adjust to get a blue flame
with an occasional tip of yellow under high flame. A view
port in the burner assembly should be used to observe flame.
BLOWER WHEEL, BURNER
This is part of the burner blower motor assembly.
TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING:
1. Shut off power at main breaker.
2. Remove control panel top and front cover.
3. Remove air shutter held by 3 screws.
4. Loosen set screws on blower wheel hub and pull straight out.
5. Reassemble in reverse order.
NOTE: There is no critical placement of the blower wheel on the motor shaft. Just back as far as it will go and
then spin the blower to be sure it is not rubbing.
BURNER CONTROL - HONEYWELL - REPLACEMENT
1. Remove control panel top and front cover.
2. Remove wires from control, note wire numbers and location for reassembly.
3. Remove Two (2) screws from control Shut off power at main breaker. and replace.
4. Reassemble in reverse order and check system operation.
BURNER ASSEMBLY
1. Shut off power at main breaker.
2. Shut off gas supply.
3. Remove control panel top and front panel.
4. Remove gas control valve (See "GAS CONTROL VALVE")
5. Disconnect pilot tube.
6. Remove solenoid valve. (See "SOLENOID VALVE")
7. Remove four (4) screws that secure the burner backing plate.
8. Remove burner assembly from housing, the main and pilot orifice, flame target, pilot shield
(main and extension), burner ignitor can now be changed or serviced as needed.
9. Reassemble in reverse order.
GAS CONTROL VALVE
1. Shut off power at main breaker.
2. Shut off gas supply.
3. Remove control panel top and front cover.
4. Disconnect the gas piping from the back of the unit.
5. Remove the four (4) screws from the incoming nipple mounting bracket.
6. Remove incoming nipple.
7. Remove pilot tube assembly from control valve.
8. Disconnect pipe union just above solenoid valve.
9. Disconnect wiring from control valve making note of wire numbers and location.
Remove piping from old valve for installation on new valve.
10. Reassemble in reverse order - after assembly is complete, be sure to check manifold pressure
(3.5" W.C. NAT GAS 10" W.C. LP) and adjust if necessary. (See Section "MANIFOLD
PRESSURE - ADJUSTMENT")
NOTE: Check all gas line fittings for leaks after installation.
Impinger I – 1400 Series Advantage Service Manual – Dom & Int'l 23