Thanks for your input. I put the mower in for service with the local authorised Greenfield service agent and claimed for replacement of the cutter system pulleys under warranty. Service agent agreed and 4 pulleys were replaced free under warranty. According to the service agent, Greenfield manufacture these pulleys themselves. What had happened was that the pressed-in bearing centre assemblies had separated from the pulley wheels leading to all kinds of wobbles and noise. Maybe they should buy these pulleys from a specialist manufacturer instead of making them themselves. Anyway, we will see how we go.
Cheers
mustang
