Makita brushes wearing out too quick

[Asm]

I've got a makita impact driver, the original brushes lasted about 2 and a half years, so I bought some more (what I believe to be official makita brushes) and they lasted about 6 months.

Replaced them again last week and now they've already worn out.

Anyone know any reason why they would start wearing out so fast? Is the impacter just knackered?

Any thoughts?

 

[Rpa07]

You've probably got a dirty commutator and next replacement give it a good clean out. Dust and particulates act as grinding dust so will shorten the wear time. Alternatively GO BRUSHLESS!

 

[The Ghost]

Ask Makita?

 

[westward10]

It is possible the factory fitted originals are better quality than any available replacements.

 

[LeeH]

Sell it, buy the brushless equivalent.

Could be a damage commutator. Give it a clean with some fine glass paper.

 

[telectrix]

poor maintenance of brushes. here's a help video:

 

[FatAlan]

Try not using it as much!

 

[Besoeker]

Worn commutator? Is it Feasible/practical/econimic to have it skimmed?

 

[Rpa07]

No but it could be cleaned and checked by the user. Bare units hardly cost now so you are correct. Buy a new one and service the spare.

 

[Des 56]

If the commutator has a few windings shorted, clean the commutator then undercut the mika using a broken half of a junior hacksaw blade to clear the segments,weak springs of the brushes could also cause excessive sparking and wear