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Procedures
1. Sketch the heater wiring configuration so you can properly re-wire the heater.
2. Remove the ceramic nuts and wires to the heater plate assembly being removed or
replaced.
3. Remove the six (6) 10-32 button head screws securing the process heater plate using
a 1/8” Allen wrench and slide out the assembly.
4. Remove the heater(s) from the mounting plate by removing the large brass nuts and
washers.
5. Re-install the heater(s) and heater plate assemblies in reverse order. Install new
heater gaskets and securely tighten all fasteners.
Caution! Heater loops should not touch each other.
“Hot spots” lead to premature heater failure!
6. Reinstall the wires based on the sketch you made earlier.
7. Reinstall the ceramic nuts to each heater terminal.
Replacing/Cleaning the Cooling Coils
WARNING! Hazardous electrical current present.
Disconnect and lock out power before you replace heater elements!
Figure 11: Cooling Coil Location and Disassembly
Note: To clean the cooling coil, use compressed air or a steam
cleaner to blow the dust off or clean any oily residue on the
coil.
Undo (4) 10-32 Button
Head Screws using 1/8
Allen Wrench
Use compressed air or a steam
cleaner to blow the dust off or clean
any oily residue on the coil.
1" Wide x 1/8" Thick High
Temperature Gasket
Water flow requirement:
If used as an After-Cooler: 3 to 4 GPM @80F.
If used as a Plasticizer Trap: 3 to 4 GPM @ 40F to 45F.
Portable Drying/Conveying Systems Chapter 5: Maintenance 46 of 63