Husqvarna 50 Workshop Manual page 7

Turn cover over. Using a suitable punch, drive out
remaining half of pivot sleeve. Separate hand guard from
cover.
Remove the five screws and lift off the cover plate.
The spring is under tension.
Always wear safety goggles for eye protection.
Using the tip of a flat bladed screwdriver, carefully lift the
end of spring out of the cover.
Press out the pin which holds the linkage arm using a
suitable punch.
CAUTION !