Lincoln Impinger Conveyor Ovens 1634-000-EA - Manual (Page 12)

Low Profile – 1600 Advantage Series Service Manual – International 12
REMOVAL, INSTALLATION & ADJUSTMENTS
MODEL SERIES 1633-000-EA, 1634-000-EA
CAUTION !
BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE
IMPINGER OVEN BE SURE TO DISCONNECT ELECTRICAL POWER AND GAS SUPPLY.
IGNITION CONTROL – REPLACEMENT
A. Remove appropriate control box cover.
B. Remove front portion of relay by releasing tabs on side pulling straight out (rocking motion).
C. Remove wires from plug-in terminal strip, note wire numbers and location.
D. Remove two screws from mounting bracket and remove.
E. Reassemble in reverse order. Check system operation.
BURNER BLOWER MOTOR – REPLACEMENT
A. Remove appropriate control box cover.
B. Unplug motor connector.
C. Remove three screws from blower tube at burner housing.
D. Remove air shutter assy. From old motor for installation on new motor assy.
E. Reassemble in reverse order and check system operation
NOTE : CHECK AIR SHUTTER ADJUSTMENT – should be set at ½ open.
BURNER INDICATOR LIGHT – REPLACEMENT
A. Remove control box cover.
B. Remove two wires from light housing.
C. Slide light housing sideways to remove.
D. Reassemble in reverse order and check system operation.
AIR PRESSURE SWITCH – REPLACEMENT
A. Remove control panel top.
B. Disconnect wires from switch making note of wire number and location for reinstallation.
C. Remove air tube from switch assembly.
D. Remove switch from wire hanger.
E. Install new switch in reverse, make sure air tube is not blocked or misaligned.
To adjust air pressure switch, remove cover from the switch to expose adjusting screw. To
increase sensitivity, turn screw counter- clockwise ; to decrease sensitivity, turn screw
clockwise. Check for proper line voltage switching from N.C. to N.O. as the air pressure
switch closes.
CONVEYOR CONTROL POTENTIOMETER (10 K OHM ) – REPLACEMENT
A. Remove control box cover.
B. Loosen two allen screws and remove knob by sliding off shaft.
C. Remove nut from potentiometer shaft and push out.
D. Unplug wire connector from conveyor control board.
E. Reassemble in reverse order and check system operation.
F. Recalibrate conveyor control board.
CONVEYOR CONTROL BOARD – REPLACEMENT
A. Shut off power at main breaker.
B. Remove control panel top and front cover.
C. Disconnect wiring ( push on connectors ) from control board, note proper location of
connectors for reinstallation and exchange boards on the mounting bracket before
reinstallation.
D. Reassemble in reverse order and check system operation.