Turbine: RAM 1000
I noticed that the starter cone is coming out at around 90k rpm. Presumably, the spring inside the starter has gone soft and needs replacement. I am enclosing a photo of the starter front bit. Before I start operating

can somebody let me know how to dismantle the front bit of the starter to get to the spring?
Also what kind of motor is it? On the rear of the motor there is written FAULHABER (made in Germany). Presumably it is from this company:
http://www.faulhaber-group.com/n164058/n.html
Any help would be appreciated.
Thanks
Reuben
Malta (Europe)