| Electronics > Repair |
| How to unfix this fan from the shaft of this DC motor? |
| << < (3/8) > >> |
| elektryk:
Apply a bit of "dremeling" on every crimps. |
| saaluc:
--- Quote from: timeandfrequency on December 12, 2024, 04:15:11 pm ---Hello saaluc , --- Quote from: saaluc on December 12, 2024, 02:41:58 pm ---2. How can this fan be unfixed from the shaft? --- End quote --- Easy peasy. You need 0.8 m of very strong cotton thread or woolen yarn. Cotton butcher twine is the best choice. Tie it to make a big loop. Roll up the large loop to have 4 small ones (because there are 4 blades). Attach each small loop to a fan blade as close as possible to the center. Hire a second person to hold the motor + fan assembly. Use a vice to hold the latter under the jaws (open those enough to that the fan rotor passes through the open jaws, but the fan case is being hold by the jaws). Pass a big screwdriver through the 4 small loops, and use it as a lever by resting on the top of the jaws. Once the fan rotor removed, you'll see 2 small Philips screws that hold the motor. Usually, it's a RC380 motor with a 3,17 2,27 to 2,3 mm shaft... A compatible one, from RS. PS : I would not try to repair the existing motor : it will never run reliably. Just replace it with a new one. --- End quote --- Frankly, I did not understand your method. May I ask you to upload a video or at least some pictures of your method? |
| langwadt:
--- Quote from: elektryk on December 12, 2024, 04:45:33 pm ---Apply a bit of "dremeling" on every crimps. --- End quote --- better to bend them out with pliers so you can bend them back for reassembly |
| elektryk:
--- Quote from: langwadt on December 12, 2024, 05:01:24 pm --- --- Quote from: elektryk on December 12, 2024, 04:45:33 pm ---Apply a bit of "dremeling" on every crimps. --- End quote --- better to bend them out with pliers so you can bend them back for reassembly --- End quote --- It may work on this small motor, with larger ones from impact wrenches or cordless drills I prefer dremeling because it is to hard to bend them. |
| timeandfrequency:
--- Quote from: saaluc on December 12, 2024, 04:57:23 pm ---May I ask you to upload a video or at least some pictures of your method? --- End quote --- Yes but not this evening. |
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