Honda Miimo HRM300 2013 Teardown

Written By: Frank
Published: 14/08/23
  • Comments: 0

Honda Miimo HRM300 2013 Teardown

Published: 14/08/23

Teardown

Introduction

Teardown of the Honda robot mower Miimo

Type number: HRM300 - EAE MAWF 1003989 2013

Reason: check if suitable for RTK GPS kind of projects like OpenMower

see also:

Honda Miimo HRM 300, 310, 500, 520 Service Tipps#2 Abdeckung Cover ab aufmontieren - YouTube

https://www.youtube.com/watch?v=zvxXIWPF...

HRM310 HRM520 (Miimo 310, 520) Setup Tutorial 1 - Overview - YouTube

https://www.youtube.com/watch?v=YS1D5IMA...

HRM310 HRM520 (Miimo 310, 520) Blades Replacement - YouTube

https://www.youtube.com/watch?v=9HY75Jsg...

Honda Miimo HRM 300, 310, 500, 520 Service Tipps#1 Lager Messerteller Räder - YouTube

https://www.youtube.com/watch?v=uuiH-xlk...

  1. TJxkuEFmxfYF3xyT
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    • turn upside down

    • loosen cover by bending clicky white stubs

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    • disconnect cable

    • remove screws from suspension

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    • not necessary to remove

    • I cleaned 1 of 3

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    • Insert wisdom here.

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    • Insert wisdom here.

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    • motor info 36000VP7004, LA034-040NNG01, 8 wires, SHINANOKENSI

    • datasheet not found, probably shinanokenshi is now aspina-group. https://www.aspina-group.com/en/contact/... catalog shows LA052-040 inner rotor brushless dc

    • probably brushless DC motor, 3x phase drive, 3x HAL feedback, 1x vcc, 1x gnd

  11. PTwhnIdKOFMV25C2
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    • 4 wires: red, black, white, blue(thin)

    • 1800mAh 22.2V 40Wh

    • lithium ion

    • from website: Original Artikel Nr.: 31520-VP7-C10 Ersatz für Artikel Nr.: 31520-VP7-751 passend für: HRM300, HRM310

  12. TUwlZmJmejIlpUK3
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    • use wrench 25 to hold shaft below the blade holding disk

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    • Insert wisdom here.

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  15. mgZ4W1uXS3M365Xg
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    • 8 wires, probably DC brushless motor

    • pin 1=U,2=V,3=W 1=HU,2=HV,3=HW,4=VCC, 5=GND

    • https://www.aspina-group.com/en/products... outer rotor brushless dc 24V 2.1A

    • marking DR-6236-249 brand shinanokenshi, probably now aspina-group

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    • Insert wisdom here.

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    • Insert wisdom here.

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    • Insert wisdom here.

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    • Insert wisdom here.

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    • Insert wisdom here.

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    • Insert wisdom here.

  22. jyu5KXAgEXdG3Ur1
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    • looks like dual layer PCB when holding near a light

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

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    • Insert wisdom here.

  25. kjdItQjKvbmSI12K
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    • localized coating against water for longer lifetime

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    • Insert wisdom here.

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    • probably 4 layer PCB

Author

Frank

Member since: 22/01/20

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