Question about Dewalt D25900k Heavy Duty Demolition Hammer Breaker
This breaker is only a few months old and stopped working recently. Power is getting to the motor but it doesn't hammer - There are electrical flashes from the motor housing when attempting to use the device but nothing else, no vibration whatsoever. Is this a problem with the motor brushes (hence the arcing) or something more serious i.e. the main piston. I spoke to NuTool and they think the brushes are ok. Unfortunately they don''t have a technical data sheet available for a few weeks, so I don't want to risk just taking the thing apart just yet. Any help appreciated.
I have a Rockworth Powertask which appears to have the same problem when exposing the drive gears the spline drive gear had been completely shredded together with a ball bearing race the driver gear was intact & the secondary drive gear would appear to have destroyed the drive gear - suggest repair
Posted on May 08, 2009
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Posted on Jan 02, 2017
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