Lincoln 1921 - Manuals - manualsarea.com

Page 2 - SEQUENCE OF OPERATION; DUAL TECHNOLOGY FINISHER; PHASE

DTF – 1920 Series Service Manual 2 SEQUENCE OF OPERATION DUAL TECHNOLOGY FINISHER 1921 208VAC 60 HZ. 3 PHASE 1922 240VAC 60 HZ. 3 PHASE POWER SUPPLY Electrical power to be supplied to the oven by a four conductor service for three phase. Black conductor is hot. Red conductor is hot. Orange conductor...

Page 3 - SCHEMATIC DIAGRAM

DTF – 1920 Series Service Manual 3 SCHEMATIC DIAGRAM MODEL 1921 S/N 8001207 and Below

Page 6 - TROUBLESHOOTING GUIDE

DTF – 1920 Series Service Manual 6 TROUBLESHOOTING GUIDE 1921 208 VAC 60 HZ. 3 PHASE 1922 240 VAC 60 HZ. 3 PHASE SYMPTOM POSSIBLE CAUSE EVALUATION Oven fan will not run Incoming power supply Check circuit breakers. Reset if required. Call power co. if needed. Fuses, 10 Amp, motor and controls Check,...

Page 10 - REMOVAL, INSTALLATION AND ADJUSTMENT

DTF – 1920 Series Service Manual 10 REMOVAL, INSTALLATION AND ADJUSTMENT DUAL TECHNOLOGY FINISHER CAUTION! BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE DUAL TECHNOLOGY FINISHER, BE SURE TO DISCONNECT THE ELECTRICAL POWER SUPPLY. MOTOR, MAIN FAN - REPLACEMENT 1. Shut off power at main breaker. ...

Page 11 - CIRCUIT BREAKER, MAIN MOTOR - REPLACEMENT

DTF – 1920 Series Service Manual 11 CIRCUIT BREAKER, MAIN MOTOR - REPLACEMENT 1. Shut off power at main breaker. 2. Remove rear cover. 3. Remove wires from appropriate circuit breaker and mark wires for reassembly. 4. Remove mounting nut from circuit breaker and remove circuit breaker. 5. Reassemble...

Page 12 - CAPACITOR, CONVEYOR MOTOR – REPLACEMENT

DTF – 1920 Series Service Manual 12 CAPACITOR, CONVEYOR MOTOR – REPLACEMENT 1. Shut off power at main breaker. 2. Remove control box top. Remove tube from air pressure switch. 3. Remove wiring from air pressure switch and conveyor motor capacitor and mark all wires for reassembly. 4. Remove two scre...

Page 13 - HEATING ELEMENT, MAIN – REPLACEMENT

DTF – 1920 Series Service Manual 13 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 THERMOSTAT, HI-LIMIT – REPLACEMENT 1. Shut off power at main breaker. 2. Remove rear cover, remove right side he...

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Page 16 - GENERAL VIEW

DTF – 1920 Series Service Manual 16 GENERAL VIEW MODEL 1921, 1922 A 370438 Finger housing, lower B 370441 Columnating plate, lower C 370443 Finger cover, lower left. Marked ‘LS’ D 370444 Finger cover, lower right. Marked ’RS’ E 370445 Front element cover F 370446 Front cover G 370447 Finger cover, u...

Page 18 - CONTROL BOX VIEW

DTF – 1920 Series Service Manual 18 CONTROL BOX VIEW MODEL 1921, 1922 A 369432 Switch, on/off B 370456 Label, control panel C 370457 Front panel D 369460 Spring, compression E 369413 Drive key F 369410 Coupling sleeve G 370106 Washer H 350259 Screw I 370458 Heating element, Infrared – 208VAC 370460 ...

Page 20 - REAR VIEW

DTF – 1920 Series Service Manual 20 REAR VIEW MODEL 1921, 1922 A 370466 Timer, cool down, 30 minute B 369422 Relay, main fan C 370467 Thermocouple D 370468 Cover, heating element E 370469 Motor mount F 370470 Motor, main fan S/N 8001207 and Below 4060485 Motor, main fan S/N 8001208 and Above G 37046...

Page 22 - CONVEYOR

DTF – 1920 Series Service Manual 22 CONVEYOR MODEL 1921, 1922 S/N 8001199 and Below A 370477 Crumb pan, right B 370478 Crumb pan, left C 370440 Frame, conveyor D 370479 Belt, conveyor E 370480 Bracket, conveyor bearing F 370481 Flanged bearing, conveyor G 370482 Shaft, idler H 369515 Drive sprocket ...