How do I connect the replacement brushes in my minivator 950 stairlifthi?

Hi
I’m replacing the brushes in my minivator 950 stairlift but I’m having great difficulty attaching the coil part to the nut- is there a way of compressing the spring? Any help appreciated
Thanking you in advance
Anne-Marie Blake, December 2020
link Click here to see other fixes for Minivator 950.