Lincoln Electric 1621-000-EA, Service Manual, Page: 12 / 24

Low Profile – 1600 Series Adv Dig Electric S.M. – Int’l
12
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 control for the proper operating mode. The 1600 series ovens have dual burner
systems. The oven control must be set to the “Dual oven mode”. Set control as follows: With
the oven power switch “off”, depress the “temp” and “down” buttons and turn the oven “on”.
Control will indicate “Low Pro”. Release the buttons, the control will indicate “Temp to store”.
Press the “temp” button. The control is now set for dual burner operation.