When squeezing trigger and Depressing

Question

When squeezing trigger and Depressing Clean surge Button on Upper handle of the Hooover Steam Cleaner F5914-900 there is no "snap"indicating trigger rod is in place. Everything else went in as instructed. The screws and bolts were no problemthis concerns me because the main complaint I read about this model was leaking from the trigger and clean surge and the problem was not getting the rod in place. No matter how many tries or people (three) it still doesn't occur.