Date post: | 15-Dec-2015 |
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1
ConesCones
Time & TemperatureTime & Temperature Permanent record of each Permanent record of each
firingfiring• Inexpensive 10¢ per coneInexpensive 10¢ per cone
Troubleshooting aidTroubleshooting aid• Use a Cone Template for Use a Cone Template for
accuracyaccuracy Best way to detect a Best way to detect a
decalibrating Thermocoupledecalibrating Thermocouple
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Loading the kilnLoading the kiln
ShelvesShelves• Size - 2” less than kiln Size - 2” less than kiln
diameterdiameter
• ClearanceClearance» Shelves 1” from wallsShelves 1” from walls
» Shelves 2” from Shelves 2” from ThermocoupleThermocouple
» Ware 2” from wallsWare 2” from walls
• LocationLocation» First shelf 1” up from floorFirst shelf 1” up from floor
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Loading, continuedLoading, continued
Density of loadDensity of load• Hot & Cold spotsHot & Cold spots
• UniformityUniformity
Tall items toward the Tall items toward the centercenter
Allow space for air flowAllow space for air flow Stagger ½ shelves if Stagger ½ shelves if
possiblepossible
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Cooling and UnloadingCooling and Unloading
Run the downdraft vent systemRun the downdraft vent system Force cooling with a fanForce cooling with a fan
• Lid closed, peep plugs are inLid closed, peep plugs are in• Small fan blowing at controllerSmall fan blowing at controller
» Wind velocity Wind velocity air exchange around kilnair exchange around kiln cooling timecooling time
Unload safely at (or below) 125°FUnload safely at (or below) 125°F
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Preventive MaintenancePreventive Maintenance
Electrical itemsElectrical items• ThermocouplesThermocouples• RelaysRelays• ElementsElements
Mechanical itemsMechanical items• Lid brace & hingeLid brace & hinge• Section HandlesSection Handles• BrickworkBrickwork
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Maintenance, electricalMaintenance, electrical
Opening Electrical Opening Electrical BoxBox• Unplug Kiln orUnplug Kiln or
» Disconnect powerDisconnect power
• Phillips screwdriverPhillips screwdriver• Remove all screws Remove all screws
on Left side of boxon Left side of box
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Maintenance, electricalMaintenance, electrical
Thermocouple ReplacementThermocouple Replacement• Unplug KilnUnplug Kiln
• Open BoxOpen Box
• Unscrew Porcelain BlockUnscrew Porcelain Block
• Loosen Screws and Remove Loosen Screws and Remove ThermocoupleThermocouple
• Install in Reverse OrderInstall in Reverse Order
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Maintenance, mechanicalMaintenance, mechanical
Lid Brace & HingeLid Brace & Hinge• Anchor padsAnchor pads
» LidLid
» BodyBody
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Maintenance, mechanicalMaintenance, mechanical
Lid HingeLid Hinge• Screws Screws
• Cotter pinCotter pin
• Struts Struts
Other hardwareOther hardware• HandlesHandles
• LatchesLatches
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Maintenance, mechanicalMaintenance, mechanical
Temporary Brick RepairTemporary Brick Repair• Unplug KilnUnplug Kiln• Insert pins at 30 degree Insert pins at 30 degree
angle to form a ledgeangle to form a ledge• Space pins every ¾ inchSpace pins every ¾ inch
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RepairsRepairs
RelaysRelays• Unplug KilnUnplug Kiln• Remove BoxRemove Box• Remove BaffleRemove Baffle• Label and Remove Label and Remove
Relay Control Wiring Relay Control Wiring • Unscrew and Remove Unscrew and Remove
RelayRelay• Install in Reverse OrderInstall in Reverse Order
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RepairsRepairs
Element ReplacementElement Replacement• Unplug KilnUnplug Kiln• Open Control BoxOpen Control Box• Cut Element Close To ConnectorCut Element Close To Connector• Remove PinsRemove Pins• Carefully Remove ElementCarefully Remove Element• Insert New ElementInsert New Element• Crimp On Feeder Wire With Barrel Crimp On Feeder Wire With Barrel
ConnectorConnector• Close and Fasten BoxClose and Fasten Box
Use Factory Original PartsUse Factory Original Parts