Black & Decker D.370 Grinder

Black & Decker D.370 Grinder

This topic has 5 replies, 5 voices, and was last updated 29 October 2024 at 08:48 by larry phelan 1.

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27 October 2024 at 17:19 #761473
Michael Gilligan
Participant
@michaelgilligan61133
We all know [don’t we?] that Bench Grinders should use induction motors.

It therefore came as some surprise to find this:

.

.

YouTube to the rescue:

https://youtu.be/eAvto4zk6JM?feature=shared

I don’t think I will be asking him to service mine [!] but the first few minutes show Black & Decker’s very interesting design.

MichaelG.
Advert

27 October 2024 at 19:50 #761503
noel shelley
Participant
@noelshelley55608
A universal AC/DC motor at 4000 rpm. Noel.
27 October 2024 at 20:18 #761508
Ian P
Participant
@ianp
4000rpm is after the reduction gearing.

Ian P
28 October 2024 at 20:20 #761678
Ian P
Participant
@ianp
I’m with Michael on him not servicing anything I have.

Interestingly I recently inadvertently watched a video of a Youtuber servicing/repairing a mains electric lawnmower.

After reassembly he commented on how the carbon brushes were sparking, so he was going to oil them!

I kid you not

Ian P
28 October 2024 at 21:16 #761684
Taf_Pembs
Participant
@taf_pembs
Just watched it.. the height of craftsmanship 😂

Oil the brushes indeed.. Darwinism at it’s finest
29 October 2024 at 08:48 #761724
larry phelan 1
Participant
@larryphelan1
One should NEVER be surprised at what one sees.

I used to be, not anymore !
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