Steam Turbine Rolling

This subject is ideally the basis of a telephone call to the turbine manufacturer's technical helpline.

In the manual provided its mentioned that proper soaking of turbine to be given...anything else can be done to bring expansions within limits ??

A natural wear in period perhaps?

What does the manufacturer say? No point us offering specialised suggestions here that could damage your turbine (whatever it is) without more information on your particular turbine.

When all else fails, contact the OEM after reading (carefully) the manual(s).

The thing to ask them is at what steam pressure on the boiler you should begin warming up the turbine. Too early (too low pressure), and you are looking at condensate impingement (my own belief), too high a pressure (and temperature) and you will heat up too rapidly, expand the metal in an uneven manner, and could very likely damage the unit.