Fast delivery but fitted incorrectly

The good news first:
The carbon brushes for washing my privilege were delivered very quickly.
The housing is fit and can be easily mounted to the motor therefore. Even the electrical connection fit.

But:
The tapered carbon brushes were rotated by 180 ° mounted in the housing so that this equipment only with the tip of the commutator. So you can not operate the machine, as this will result in addition to strong running noises to extreme sparking and overheating.
A reversal of the coals in the housing has not been possible because the pigtail is ultrasonically welded. I had the coals then with a file in the right direction Bevel. The abgefeilte piece reduced course now the durability.
Too bad!