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TRAK Machine Tools
Southwestern Industries, Inc.
TRAK 3ntr 3D Printers
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Maintenance & Troubleshooting Manual
Figure 3.2.6 Custom Factory Supplied Tool for Gripping Square Surface
3.2.8
Nozzle and Ceramic Heater Assembly/Disassembly
A small .5 mm gap is needed between nozzle face and surface of ceramic heater assembly.
In addition, there is an order we find works best to avoid stress on the ceramic heater assembly.
1)
Make sure assembly is cooled to room temperature to insure easy handling and disassembly.
2)
For disassembly, use wrench on square surface of ceramic heater assembly and use socket on
nozzle. Apply opposing force to loosen the two. Once free, both should be free to remove by
hand. Never use pliers on the heat bridge.
3)
For assembly, hand thread the nozzle close to .5mm gap. Follow that by hand threading the heat
bridge until it stops against the nozzle. This gap is not critical. Just make sure it is there. Fit both
wrench and socket on torque screwdriver, apply opposing force to secure them to one another at
1.3 Nm.
