That really big return spring on the brake shaft ,to change it(one on mine snapped,got a new one) much of a job? anything I should be looking out for ? or time consuming grunt and groan/sweat?
Fairly straight forward. Just remember to completely remove the pedal pinch bolt otherwise it will just rattle about but not slide off the shaft. A large screwdriver or similar is usefull in persuading the hook end of the spring to catch on the retaing lug.