Hello - I have been given this machine to repair but the manual is not on their web site. The problem is that there is a spring broken which is attached under the shuttle hook holder as per the picture below:
The hook seems to have caught this spring and broken it . You can see the spring hanging down to the left of the shuttle housing. I cannot see where the other end of the spring was attached. Neither do I understand the purpose of it. It does not appear in the nearest manual I could find for the 9160.
All advice welcome!