Discuss Makita grinder running slow in the Tiling Tools area at TilersForums. USA and UK Tiling Forum

D

Dumbo

My Makita 18v battery grinder is running half speed ( approximately . I havent measured the rpm ) is this likely to be brushes or something more terminal . Went to check the brushes by removing and inner and outer cap but couldn't do it . Any advice would be appreciated
 

Sean Kelly

TF
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The outer cap is probably covered in adhesive!! Just use a screwdriver and they will pop off.

The inner ones are threaded. If I remember correctly they have a slot in the middle of them so that you can get a flat head screwdriver and turn them. Failing that use a thin nosed set of pliers to give them a good turn.

Take out the brushes, again by prising them out with a screwdriver.

The slowness of your grinder is probably the worn brushes!
 
OP
I

Italy

they may not be the brushes,
lately the brushes have a copper wire inside,
when the copper touches the winder, the block is immediate.
the grinder no longer works
 
OP
D

Dumbo

It wasnt that bad
20180729_194421.jpg
20180729_200107.jpg

About 15min and ÂŁ11 later its fixed .
Spoke to a local tool guy he reckoned
ÂŁ30 Labour and about ÂŁ30 bits .
All parts I used genuine Makita from local builders merchant . At ÂŁ30 Labour I reckon ÂŁ120 an hour , nice work if you can get it .
 
OP
O

One Day

I always give my tools a clean after use.
You know what they say : Look after your tools - and you'll be late home to an angry wife...

(but at least your tools will be clean!)
 

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