Assessments - 3, GPA: 2.3
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E. Reassemble in reverse order and check system operation. MAIN FAN MOTOR – REPLACEMENT A. Shut off power at main breaker. B. Shut off gas supply and remove gas line and manifold lines from back of oven. C. Remove screws from motor cover housing and lift off. NOTE: When ovens are stacked, all motor cover housings are fastened together. D. Unplug power connector. E. Unplug thermocouple. F. Unplug 2 motor connectors. G. Remove 8 bolts from oven back ( 4 left, 4 right ) and lift out. H. Remove 1 screw from fan hub and slide fan blade off of motor shaft. ( note location of fan blade for reinstallation ) I. Loosen locknuts on cone. Remove 2 mounting bolts and remove motor from back assembly. J. Remove 4 hex head screws from motor mount bracket. Remove motor mount from motor and reinstall on new motor. K. 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. L. 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 ). THERMOCOUPLE (TYPE K) – REPLACEMENT A. Shut off power at main breaker. B. 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. C. 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 2 wires , make note of wire colors and location. When changing L. H. thermocouple (viewed from front, the back motor cover must also be removed to gain access to the thermocouple connector plug.) D. Reassemble in reverse order making sure bulb is placed securely in the wire form in the oven chamber. E. 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. THERMOCOUPLE MEASUREMENT TEMPERATURE (°F) D.C. MILLIVOLTS 200° 2.8 250° 4.0 300° 5.1 350° 6.0 400° 7.1 450° 8.2 500° 9.3 550° 10.4 600° 11.5 Low Profile – 1600 Series Adv Dig Electric S.M. – Int’l TIME DELAY RELAY – REPLACEMENT A. Shut off power at main breaker. B. Remove control box cover. C. Remove all wires from time delay relay, note wire numbers and location for reinstallation. D. Remove mounting screw and remove time delay relay. E. Reassemble in reverse order and check system operation. HEATING ELEMENT – REPLACEMENT A. Shut off power at main breaker. B. Remove appropriate control box cover. C. Remove wires from heating element, note all wire numbers for reinstallation. D. Reassemble in reverse order and check system operation. NOTE: Be sure that leading edge of heating element is located in heating element mounting bracket, located in oven cavity. CONTACTOR – REPLACEMENT A. Shut off power at main breaker. B. Remove appropriate control box cover. C. Remove all wires from contactor, note all wire numbers for reinstallation. D. Remove mounting screws and remove contactor. E. Reassemble in reverse order and check system operation. POWER FILTER – REPLACEMENT A. Shut off power at main breaker. B. Remove control box cover. C. Remove all wires from the power filter, note all wire numbers for reinstallation. D. Reassemble in reverse order and check system operation. BEARING, CONVEYOR – REPLACEMENT A. Remove conveyor from oven and place on a flat work surface. B. Remove connecting links from conveyor belting. See Installation and Operating Instructions Manual. C. Remove conveyor belting from conveyor. Remove drive sprocket from drive shaft. D. Move drive shaft or idle shaft toward end of conveyor, and shaft with bearings will now slip out of holding bracket. E. Replace bearing and reassemble in reverse order. CONTROL TRANSFORMER – REPLACEMENT A. Shut off power at main breaker. B. Remove wires from primary side, note color and location. C. Remove wires from secondary side, note color and location. D. Remove two mounting screws and remove transformer. E. Reassemble in reverse order and check system operation. OVEN CONTROL – REPLACEMENT A. Shut off power at main breaker. B. Remove control box cover and front panel. C. Remove all wiring connections and mark for reassembly. D. Remove oven control by pulling control from mounting pins. Remove control from oven. E. Before installing new control, set voltage jumper (located at the bottom center of the oven control) to the proper (120/240V) position. Install the four push button extensions (included with the oven control) by pushing the extensions onto the four set buttons on control. F. Reassemble in reverse order and check system operation. G. Set the oven cont...
Este manual também é adequado para os modelos :Fornos Elétricos - 1628-000-A (1.01 mb)
Fornos Elétricos - 1629-000-A (1.01 mb)