How to fix a makita drill DHP484 stuck on hammer mode. Full rebuild was needed first.
Автор: Dean Doherty
Загружено: 2023-10-01
Просмотров: 90868
This is not the way you want to get a drill in for repair.
The customer obviously tried to fix it first but couldn't get it rebuilt.
Had to first rebuild the drill to find out what was wrong with it. Turned out it was a hammer mode problem. The drill would not come out of hammer mode.
This can happen with any drill, especially to see it with the dewalt drill.
It happen on the makitas from time to time also. Sadly, it's normally not repairable as the parts are not available from makita. They only sell the gearbox as one whole unit. Which js a real pain.
Luckily, I had a doner machine I was able to use for parts.
The problem was a linear thrush bearing that had failed.
Sometimes, they can be rebuilt, but this one had broken both the cup washers holding the steel balls.
The only option you have when this happens is to remove the thrush bearing and hammer ring completely. so there is no more hammer mode.
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