We are sorry, we don't present such information through the discussions section because of their technical nature. We recommend to entrust the adjustments and repairs to the authorized service workshops. They are responsible for their work, they have the tools and other aids for these tasks. We don't want to be responsible for damages done to your machines by inexpert interference and/or repairs according to indirectly given instructions. Please don't ask for such information in the discussions. We thank you for understanding.