Service Manual for
RCO Speed Oven
4
TABLE OF CONTENTS
INSTALLATION .................................................................................................................6
UNPACKING...............................................................................................................6
RADIO INTERFERENCE ...........................................................................................6
OVEN PLACEMENT...................................................................................................6
ELECTRICAL REQUIREMENTS ................................................................................6
GROUNDING INSTRUCTIONS .................................................................................6
TOOLS
.......................................................................................................................7
SPECIFICATIONS ......................................................................................................7
REMOVAL AND REPLACEMENT OF COMPONENTS ....................................................8
Electrical LOCKOUT/TAGOUT Procedure .................................................................8
COVERS AND PANELS .............................................................................................8
Top
Panel .............................................................................................................8
Side
Panels ..........................................................................................................8
Rear Panel Exhaust Vent Covers ........................................................................8
Rear Heater Cover ...............................................................................................9
Louvered Rear Service Panel ..............................................................................9
EXHAUST FANS ........................................................................................................9
Exhaust Fan Replacement ................................................................................10
Left Side Tangential Blower ...............................................................................10
Tangential Blower Replacement ........................................................................10
Right Side Cooling Fan ...................................................................................... 11
SOLID STATE RELAYS ............................................................................................ 11
MONITOR RELAY ....................................................................................................12
VOLTAGE RELAY .....................................................................................................12
LINE FUSE ...............................................................................................................13
CONTROL BOX ASSEMBLY ....................................................................................14
SIGNAL TRANSFORMER ........................................................................................15
DOOR SWITCHES ...................................................................................................15
THERMAL CUTOUTS ..............................................................................................16
HEATING ELEMENTS..............................................................................................17
DOOR REPLACEMENT ...........................................................................................18
INVERTER................................................................................................................19
CONVECTION BLOWER MOTOR ASSEMBLIES ...................................................19
MAGNETRON COOLING FAN .................................................................................20
MAGNETRON COOLING FAN REPLACEMENT .....................................................20
MAGNETRON THERMAL SWITCHES ....................................................................21
MAGNETRON ..........................................................................................................22
HIGH VOLTAGE (HV) TRANSFORMERS ................................................................23
HIGH VOLTAGE (HV) CAPACITORS .......................................................................25
HIGH VOLTAGE (HV) DIODES ................................................................................27
WAVEGUIDES ..........................................................................................................28