Lincoln Impinger Conveyor Ovens 1633-000-EA - Manual (Page 12)

Low Profile –1600 Series Advantage Digital Service Manual – Int’l 12
REMOVAL, INSTALLATION & ADJUSTMENTS
MODEL SERIES 1633-000-EA, 1634-000-EA
SERIAL NUMBER L28563 AND ABOVE
OVEN WITH PUSH BUTTON CONTROLS
CAUTION!
BEFORE REMOVING OR INSTALLING ANY COMPONENT IN THE
IMPINGER OVEN BE SURE TO DISCONNECT ELECTRICAL POWER AND GAS SUPPLY.
IGNITION CONTROL – REPLACEMENT (S/N L31478 and Below)
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.
IGNITION CONTROL – REPLACEMENT (S/N L31479 and Above)
A. Remove appropriate control box cover.
B. Remove wires from control and mark for reassembly.
C. Remove one mounting screw and remove ignition control from gas valve.
D. Reassemble in reverse order and 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.
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 DRIVE MOTOR – REPLACEMENT
A. Shut off power at main breaker.
B. Remove
conveyor.
C. Remove control panel top and front cover.
D. Disconnect wiring from motor and mark for reassembly.
E. Remove sprocket from motor shaft.
F. Remove 4 screws and remove conveyor motor and mounting bracket.
G. Remove mounting bracket from conveyor motor assembly.
H. Reassemble in reverse order.