Honda Miimo HRM300 2013 Teardown

ID: 163765

Description: Teardown of the Honda robot mower Miimo Type...

Steps:

1. turn upside down
2. loosen cover by bending clicky white stubs

3. disconnect cable
4. remove screws from suspension

5. not necessary to remove
6. I cleaned 1 of 3

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13. motor info 36000VP7004, LA034-040NNG01, 8 wires, SHINANOKENSI
14. datasheet not found, probably shinanokenshi is now aspina-group. https://www.aspina-group.com/en/contact/... catalog shows LA052-040 inner rotor brushless dc
15. probably brushless DC motor, 3x phase drive, 3x HAL feedback, 1x vcc, 1x gnd

16. 4 wires: red, black, white, blue(thin)
17. 1800mAh 22.2V 40Wh
18. lithium ion
19. from website: Original Artikel Nr.: 31520-VP7-C10 Ersatz für Artikel Nr.: 31520-VP7-751 passend für: HRM300, HRM310

20. use wrench 25 to hold shaft below the blade holding disk

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23. 8 wires, probably DC brushless motor
24. pin 1=U,2=V,3=W 1=HU,2=HV,3=HW,4=VCC, 5=GND
25. https://www.aspina-group.com/en/products... outer rotor brushless dc 24V 2.1A
26. marking DR-6236-249 brand shinanokenshi, probably now aspina-group

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33. looks like dual layer PCB when holding near a light

34. silicon heat transfer to metal shield for probably the motor cutter driver

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36. localized coating against water for longer lifetime

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38. probably 4 layer PCB