Here is a detailed step-by-step guide along with an accompanying video.
Video
Step 1: Introduction to Disassembly 0:00
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Overview of the nozzle assembly components: motor, ESC, and top bracket.
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Note that the example is made from spare parts and may differ from your assembly.
Step 2: Preparing for Disassembly 0:12
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Identify the two top screws on the nozzle assembly.
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Cut the silicone off the screw heads using a knife.
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Use a pick if necessary to remove any silicone residue.
Step 3: Removing the Top Screws 0:22
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Use a 2.5mm Allen screwdriver to remove the screws from the top of the nozzle assembly.
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Set the screws aside for reassembly.
Step 4: Separating the Assembly 0:57
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Carefully pull apart the nozzle assembly.
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Be aware that the ridge may be coated in silicone, making it difficult to separate.
Step 5: Identifying Internal Components 1:07
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Locate the clockwise and counterclockwise plugs inside the assembly.
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Note that the writing on the plugs may be small.
Step 6: Unplugging the Cables 1:18
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Clean off any factory silicone surrounding the plugs before unplugging.
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Be cautious not to damage the wires or plugs.
Step 7: Avoiding Motor Disassembly 2:04
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Do not remove the screws around the top of the motor.
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Opening the motor can dislodge bearings and ruin waterproofing.
Step 8: Removing the ESC Bracket 2:11
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Use a knife to carefully cut around the base of the ESC plug to score the silicone.
Step 9: Cleaning Silicone Residue 2:23
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Clean off any additional silicone around the ridge of the bracket before installing a new ESC.
Step 10: Sealing the Assembly 2:37
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Do not use RTV for sealing; it requires a flush mounted edge.
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Use plumbing grade silicone for waterproofing and filling gaps.
Step 11: Final Notes 3:03
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Ensure proper sealing when reassembling.
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Contact your local dealer for further questions.