re-install the plunge lever and parts into an ELU 3338, type 1 router?

The holding nut (nylon insert) loosened and the spring and lever assembly parted (spring disengaged from washer and lever) How can I get the parts back into the channel? The spring is very strong and I've not be able to replace in the correct position.
Parts are 35, 36,37,38,39 54,53&52 in parts manual.
Thank you.