Cooling FAN Motor Replacement | Lincoln 1600 instruction

COOLING FAN MOTOR - REPLACEMENT

A.Remove appropriate control box cover.

B.Remove mounting screws.

C.Unplug electrical connector and remove fan motor assembly.

D.Reassemble in reverse order and check system operation.

MAIN FAN MOTOR - REPLACEMENT

A.Shut off gas supply and remove gas line and manifold lines from back of oven.

B.Remove screws from motor cover housing and lift off.

NOTE: When ovens are stacked, all motor cover housings are fastened together.

C.Unplug power connector .

D.Unplug thermocouple.

E.Unplug two (2) motor connectors.

F.Remove eight (8) bolts from oven back (4 left, 4 right) and lift out.

G.Remove one (1) screw from fan hub and slide fan blade off of motor shaft. (Note location of fan blade for reinstallation).

H.Loosen lock nuts on cone. Remove two mounting bolts and remove motor from back assy.

I.Remove four (4) hex head screws from motor mount bracket. Remove motor mount from motor and reinstall on new motor.

J.Reassemble in reverse order. NOTE:

1.Make sure motor is centered in back housing.

2.Verify correct location of fan blade and that it is not hitting fan shroud.

3.Make sure all connectors are properly seated and making good contact.

4.When reinstalling gas manifold across back of oven, check all fittings for leaks.

K.Check system operation (allow 30 minute preheat for all checks).

NOTE: Position of the fan on the motor shaft will be 1.875" from the top of the oven back cone to the blade spider assembly on the fan hub. (See drawing below.)

1.875 INCH FROM CONE TO FAN SPIDER

THERMOCOUPLE (TYPE J) - REPLACEMENT

A.Remove control box covers. Remove motor cover and remove oven back to access thermocouple.

NOTE: Removal of oven back assy. is required to replace thermocouples.

B.Remove thermocouple from wire form in oven chamber and remove from chamber. NOTE: R. H. Thermocouple (viewed from front) is connected directly to the temperature control board, remove two (2) wires, make note of wire colors (terminal #6 is White + and terminal #7 is Red-) and location for reinstallation. When changing L.H. Thermocouple (viewed from front), the back motor cover must also be removed to gain access to the thermocouple connector plug.

C.Reassemble in reverse order making sure bulb is placed securely in the wire form in the oven chamber.

D.Check system operation, recalibrate as needed. NOTE: The R.H. and L.H. Thermocouples have different connectors on the wire ends and must be ordered accordingly.

INFORMATION:

When two wires composed of dissimilar metals are joined together and one of the ends is heated, a continuous current flow is generated. We use an iron constant (Type J) thermocouple. The iron wire increases the number of dissimilar junctions in the circuit.

16	Low Profile – 1600-000-A Advantage Series Service Manual – Domestic

1600 specifications

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