Specialist Training for DC Motor Maintenance Engineers & Repairers
Trouble Shooting Carbon Brushes
by Ken Johnson
The Knowledge you will gain from this Course:
The importance of pole air gap
The Methods of settings the neutral position of brush gear
How to recognise brush grade families and select the correct grade for your application
What happens when brush grades are mixed
The importance of surface film on commutators
The affects of humidity on brush life
How to calculate brush current density and its importance to good commutation
How to manage brush current density
The correct selection— Fitting and Order of Pole Shims
How to analyse and trouble shoot sparking problems
The rights and wrongs of Commutator undercutting
How to assess the ware repair indicators of Commutators
How to analyse the ware characteristics of Carbon, Brushes, Boxes and Springs
How much Spring Pressure to apply for different types of DC motors
Is there any such thing as a Constant Torque Spring?
The affects of external contaminants on commutation
How to set the correct angle and position of brush holders
All delivered in a no nonsense easy to follow and very clear style with good ‘take home’ information.
Register for the 1st of September of 2017
For more information download the full brochure!
Course trainer - Ken Johnson
Ken Johnson began his professional career as an air traffic controller.
After 4 years, he found that carbon brushes with their many idiosyncrasies
were far more challenging than landing aircraft. Having always been
intrigued with machines, he discovered brush-ology 31 years ago and has
worked with them ever since.
£395 GBP (EASA Members)
£580 GBP (Non-members)
193 Camp Hill, Birmingham,
United Kingdom B12 0JJ