Husky Unify - Removing and Installing Ultra Nozzle Heaters (UNH) on U750 Systems; Removing Ultra Nozzle Heaters (UNH) on U750 Systems; Installing Ultra Nozzle Heaters (UNH) on U750 Systems

• Bi-metal heaters for U750 and U1000 systems
• Triton heaters for U750-UP systems
• HTM heaters for U1000 systems
6.10.1 Removing and Installing Ultra Nozzle Heaters (UNH) on U750 Systems
The following procedures describe how to remove and install Ultra Nozzle Heaters (UNH) nozzle
on U750 systems.
6.10.1.1 Removing Ultra Nozzle Heaters (UNH) on U750 Systems
To remove an Ultra Nozzle Heater (UNH) on U750 Systems, do the following:
1. Separate or remove the cavity plate from the manifold.
2. Remove the nozzle retainer.
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3
5
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4
Figure 6-17: Ultra Nozzle Heater (UNH) Assembly
1. Retaining Clip 2. Thermocouple Ring 3. Ultra Nozzle Heater (UNH) 4. Wave Spring 5. Nozzle tip
3. While holding the retaining clip and nozzle heater rmly against the wave springs, remove
the retaining clip from the nozzle tip.
4. Remove the thermocouple ring.
5. Remove the nozzle heater.
6. Remove and discard the wave springs.
6.10.1.2
Installing Ultra Nozzle Heaters (UNH) on U750 Systems
To install an Ultra Nozzle Heater (UNH) on U750 Systems, do the following:
1. If required, separate or remove the cavity plate from the manifold.
2. Remove the nozzle retainer.
3. Install new wave springs over the nozzle housing and nozzle tips.
v 2.2 — March 2021 Unify Manifold System
80 Removing and Installing Ultra Nozzle Heaters (UNH) on U750 Systems